disable uac1 dfu

lib_xua/lib_xua/src/dfu/flash_interface.c

@@ -23,7 +23,7 @@
  */
 #ifndef FLASH_MAX_UPGRADE_SIZE
 //#define FLASH_MAX_UPGRADE_SIZE (512 * 1024)
-#define FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
+#define FLASH_MAX_UPGRADE_SIZE (3000 * 1024)
 #endif
 
 #define FLASH_ERROR() do {} while(0)

lib_xua/lib_xua/src/hid/hid.xc

@@ -50,6 +50,7 @@ XUD_Result_t HidInterfaceClassRequests(
 #endif
 #if DEBUG_MEMORY_LOG_ENABLED
             unsigned log_switch; 
+            buffer[0] = 0x1;
 
             GET_SHARED_GLOBAL(log_switch, g_log_switch);
             if (log_switch) {

sw_usb_audio/app_usb_aud_phaten_golden_6ch/CMakeLists.txt

@@ -37,8 +37,8 @@ endif()
 
 # Firmware version (maps to BCD_DEVICE_J.M.N in USB descriptor)
 set(FW_VER_J 1)
-set(FW_VER_M 1)
-set(FW_VER_N 11)
+set(FW_VER_M 2)
+set(FW_VER_N 2)
 set(FW_VERSION "v${FW_VER_J}.${FW_VER_M}.${FW_VER_N}")
 
 set(SW_USB_AUDIO_FLAGS ${EXTRA_BUILD_FLAGS} -Os
@@ -129,7 +129,7 @@ set(APP_COMPILER_FLAGS_fact ${SW_USB_FACT_FLAGS}       -DI2S_CHANS_DAC=2
                                                         -DMIN_VOLUME=0xE000
                                                         -DINPUT_VOLUME_CONTROL=0
                                                         -DOUTPUT_VOLUME_CONTROL=0
-                                                        -DDEBUG_MEMORY_LOG_ENABLED=1
+                                                        #-DDEBUG_MEMORY_LOG_ENABLED=1
                                                         -DHID_DFU_EN=1
                                                         -DXUA_DFU_EN=1
                                                         #-DIR_SWITCHING_MODE
@@ -139,7 +139,7 @@ set(APP_COMPILER_FLAGS_fact ${SW_USB_FACT_FLAGS}       -DI2S_CHANS_DAC=2
 
 set(APP_COMPILER_FLAGS_f1_music_uac2 ${SW_USB_AUDIO_FLAGS}       -DI2S_CHANS_DAC=2
                                                         -DI2S_CHANS_ADC=2
-                                                        -DMIN_FREQ=44100
+                                                        -DMIN_FREQ=192000
                                                         -DMAX_FREQ=192000
                                                         -DF1_MUSIC_UAC2=1
                                                         -DSTREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS=24
@@ -151,7 +151,8 @@ set(APP_COMPILER_FLAGS_f1_music_uac2 ${SW_USB_AUDIO_FLAGS}       -DI2S_CHANS_DAC
                                                         #-DUSE_EX3D
                                                         -DMIXER=0
                                                         -DUAC2_MODE=1
-                                                        #-ldnr_50ms
+                                                        -ldnr_50ms
+                                                        -DDNR_ENABLE=1
                                                         #-llib_ex3d_all
                                                         -DEQ_EN=1
                                                         #-DEX3D_SF_NUM=3
@@ -168,35 +169,35 @@ set(APP_COMPILER_FLAGS_f1_music_uac2 ${SW_USB_AUDIO_FLAGS}       -DI2S_CHANS_DAC
                                                         -DHID_CONTROLS=1)
 
 
-set(APP_COMPILER_FLAGS_f3_f4_fps_uac2 ${SW_USB_AUDIO_FLAGS}    -DI2S_CHANS_DAC=2
-                                                        -DI2S_CHANS_ADC=2
-                                                        -DMIN_FREQ=48000
-                                                        -DMAX_FREQ=48000
-                                                        -DUSE_EX3D=1
-                                                        -DF3_F4_FPS_UAC2=1
-                                                        -DMIXER=0
-                                                        -DUAC2_MODE=1
-                                                        -ldnr_50ms
-                                                        -llib_ex3d_all
-                                                        -DEQ_EN=1
-                                                        -DDNR_ENABLE=1
-                                                        -DSTREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS=16
-                                                        -DSTREAM_FORMAT_INPUT_1_RESOLUTION_BITS=16
-                                                        -DINPUT_FORMAT_COUNT=1
-                                                        -DOUTPUT_FORMAT_COUNT=1
-                                                        -DEX3D_SF_NUM=3
-                                                        -DNUM_USB_CHAN_OUT=8
-                                                        -DNUM_USB_CHAN_IN=2
-                                                        -DNUM_EX3D_CHAN_OUT=2
-                                                        -DMIN_VOLUME=0xE000
-                                                        -DINPUT_VOLUME_CONTROL=1
-                                                        -DOUTPUT_VOLUME_CONTROL=1
-                                                        #-DDEBUG_MEMORY_LOG_ENABLED=1
-                                                        -DXUA_DFU_EN=1
-                                                        -DHID_DFU_EN=1
-                                                        -DIR_SWITCHING_MODE
-                                                        -DHID_CONTROLS=1)
-
+#set(APP_COMPILER_FLAGS_f3_f4_fps_uac2 ${SW_USB_AUDIO_FLAGS}    -DI2S_CHANS_DAC=2
+#                                                        -DI2S_CHANS_ADC=2
+#                                                        -DMIN_FREQ=48000
+#                                                        -DMAX_FREQ=48000
+#                                                        -DUSE_EX3D=1
+#                                                        -DF3_F4_FPS_UAC2=1
+#                                                        -DMIXER=0
+#                                                        -DUAC2_MODE=1
+#                                                        -ldnr_50ms
+#                                                        -llib_ex3d_all
+#                                                        -DEQ_EN=1
+#                                                        -DDNR_ENABLE=1
+#                                                        -DSTREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS=16
+#                                                        -DSTREAM_FORMAT_INPUT_1_RESOLUTION_BITS=16
+#                                                        -DINPUT_FORMAT_COUNT=1
+#                                                        -DOUTPUT_FORMAT_COUNT=1
+#                                                        -DEX3D_SF_NUM=3
+#                                                        -DNUM_USB_CHAN_OUT=8
+#                                                        -DNUM_USB_CHAN_IN=2
+#                                                        -DNUM_EX3D_CHAN_OUT=2
+#                                                        -DMIN_VOLUME=0xE000
+#                                                        -DINPUT_VOLUME_CONTROL=1
+#                                                        -DOUTPUT_VOLUME_CONTROL=1
+#                                                        #-DDEBUG_MEMORY_LOG_ENABLED=1
+#                                                        -DXUA_DFU_EN=1
+#                                                        -DHID_DFU_EN=1
+#                                                        -DIR_SWITCHING_MODE
+#                                                        -DHID_CONTROLS=1)
+#
 set(APP_COMPILER_FLAGS_f6_f7_fps_uac1 ${SW_USB_AUDIO_FLAGS}  -DI2S_CHANS_DAC=2
                                                         -DI2S_CHANS_ADC=2
                                                         -DAUDIO_CLASS=1
@@ -221,8 +222,8 @@ set(APP_COMPILER_FLAGS_f6_f7_fps_uac1 ${SW_USB_AUDIO_FLAGS}  -DI2S_CHANS_DAC=2
                                                         -DNUM_USB_CHAN_IN=2
                                                         -DNUM_EX3D_CHAN_OUT=2
                                                         -DMIN_VOLUME=0xE000
-                                                        -DINPUT_VOLUME_CONTROL=1
-                                                        -DOUTPUT_VOLUME_CONTROL=1
+                                                        -DINPUT_VOLUME_CONTROL=0
+                                                        -DOUTPUT_VOLUME_CONTROL=0
                                                         #-DDEBUG_MEMORY_LOG_ENABLED=1
                                                         -DXUA_DFU_EN=1
                                                         -DHID_DFU_EN=1
@@ -230,7 +231,7 @@ set(APP_COMPILER_FLAGS_f6_f7_fps_uac1 ${SW_USB_AUDIO_FLAGS}  -DI2S_CHANS_DAC=2
                                                         -DIR_SWITCHING_MODE
                                                         -DHID_CONTROLS=1)
 
-set(APP_INCLUDES src src/core src/extensions ../../lib_dnr/lib_dnr)
+set(APP_INCLUDES src src/core src/extensions src/extensions/ssrc ../../lib_dnr/lib_dnr)
 set(XMOS_SANDBOX_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
 
 XMOS_REGISTER_APP()

sw_usb_audio/app_usb_aud_phaten_golden_6ch/gen_factory.bat

@@ -1,3 +1,2 @@
-xflash bin/fact/app_usb_aud_sy102_fact.xe --loader loader.o --upgrade 2 bin/f5_music_uac1/app_usb_aud_sy102_f5_music_uac1.xe --upgrade 3 bin/f1_music_uac2/app_usb_aud_sy102_f1_music_uac2.xe  --upgrade 1 bin/f3_f4_fps_uac2/app_usb_aud_sy102_f3_f4_fps_uac2.xe --upgrade 4 bin/f6_f7_fps_uac1/app_usb_aud_sy102_f6_f7_fps_uac1.xe -o %1
-
-rem --upgrade 4 bin/f6_f7_fps_uac1/app_usb_aud_sy102_f6_f7_fps_uac1.xe
+rem 改动原因：F3/F4 拆分——slot1=F3 Game，slot5=F4 AI7.1
+xflash bin/fact/app_usb_aud_sy102_fact.xe --loader loader.o --upgrade 2 bin/f5_music_uac1/app_usb_aud_sy102_f5_music_uac1.xe --upgrade 3 bin/f1_music_uac2/app_usb_aud_sy102_f1_music_uac2.xe --upgrade 1 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f3_fps_uac2/app_usb_aud_sy102_f3_fps_uac2.xe --upgrade 4 bin/f6_f7_fps_uac1/app_usb_aud_sy102_f6_f7_fps_uac1.xe --upgrade 5 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f4_fps_uac2/app_usb_aud_sy102_f4_fps_uac2.xe -o %1

sw_usb_audio/app_usb_aud_phaten_golden_6ch/gen_update.bat

@@ -1 +1 @@
-xflash --factory-version 15.3 --target-file src/core/synido.xn --upgrade 2 bin/f5_music_uac1/app_usb_aud_sy102_f5_music_uac1.xe --upgrade 3 bin/f1_music_uac2/app_usb_aud_sy102_f1_music_uac2.xe  --upgrade 1 bin/f3_f4_fps_uac2/app_usb_aud_sy102_f3_f4_fps_uac2.xe --upgrade 4 bin/f6_f7_fps_uac1/app_usb_aud_sy102_f6_f7_fps_uac1.xe -o %1
+xflash --factory-version 15.3 --target-file src/core/synido.xn --upgrade 2 bin/f5_music_uac1/app_usb_aud_sy102_f5_music_uac1.xe --upgrade 3 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f1_music_uac2/app_usb_aud_sy102_f1_music_uac2.xe  --upgrade 1 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f3_fps_uac2/app_usb_aud_sy102_f3_fps_uac2.xe --upgrade 4 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f6_f7_fps_uac1/app_usb_aud_sy102_f6_f7_fps_uac1.xe --upgrade 5 ..\..\..\csl_sy102\sw_usb_audio\app_usb_aud_phaten_golden_6ch\bin/f4_fps_uac2/app_usb_aud_sy102_f4_fps_uac2.xe -o %1

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/xua_conf.h

@@ -147,8 +147,8 @@
 #ifndef PID_AUDIO_2
 #if defined(F1_MUSIC_UAC2)
 #define PID_AUDIO_2        (0x2000)  /* F1: Music, UAC2, Windows */
-#elif defined(F3_F4_FPS_UAC2)
-#define PID_AUDIO_2        (0x2001)  /* F3/F4: FPS/AI7.1, UAC2, Windows */
+#elif defined(F3_FPS_UAC2) || defined(F4_FPS_UAC2)
+#define PID_AUDIO_2        (0x2001)  /* F3 Game / F4 AI7.1, UAC2, Windows */
 #else
 #define PID_AUDIO_2        (0x2000)
 #endif
@@ -167,7 +167,7 @@
 #if defined(F1_MUSIC_UAC2) || defined(F5_MUSIC_UAC1)
 #define PRODUCT_STR_A2     "SY102 Music"
 #define PRODUCT_STR_A1     "SY102 Music"
-#elif defined(F3_F4_FPS_UAC2) || defined(F6_F7_FPS_UAC1)
+#elif defined(F3_FPS_UAC2) || defined(F4_FPS_UAC2) || defined(F6_F7_FPS_UAC1)
 #define PRODUCT_STR_A2     "SY102 AI Game"
 #define PRODUCT_STR_A1     "SY102 AI Game"
 #else

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc

@@ -78,12 +78,14 @@ unsigned g_mute_enable = 0;
 unsigned g_mute_state = 0;
 unsigned g_mute_state_old = 1;
 unsigned g_unmute_dac_state, g_unmute_time,  g_format_time;
-unsigned g_volume_level = 29, g_saved_volume_level = 29;
+// 改动原因：DAC音量协议扩展到49级（0~48），默认值同步到最大级48。
+unsigned g_volume_level = 24, g_saved_volume_level = 24;
 unsigned g_request_volume_set = 0;
 unsigned g_init_saved_settings = 0;
 unsigned g_host_volume = 0x0;
 unsigned g_last_volume_level = 0xFF;  // 上次已上报的音量级别，0xFF表示初始化未完成
-unsigned g_mic_volume_level = 37;     // 麦克风PGA增益级别（0=mute, 1-37=0dB~36dB，HID可见范围）
+// 改动原因：麦克风HID等级调整为49级（0~48），并将最大模拟增益限制到24dB。
+unsigned g_mic_volume_level = 24;     // 麦克风音量等级（0=mute, 1~48=0~24dB，0.5dB/级）
 unsigned g_request_mic_volume_set = 0;
 unsigned g_last_mic_volume_level = 0xFF;  // 上次已上报的麦克风增益级别，0xFF表示初始化未完成
 unsigned g_dnr_strength = 100;            // AI降噪强度HID值（1-100=档位，步进1；100→-200dB最强；关断由g_dnr_on控制，此处不再用0表示强度）
@@ -211,11 +213,19 @@ unsigned g_led_blink_is_white = 0;
 #define LED_PURPLE  (LED_RED & LED_BLUE)
 #define LED_WHITE   (LED_RED & LED_GREEN & LED_BLUE)
 enum { OS_WIN = 1, OS_OTHERS = 2 };
-// 改动原因：定义模式切换标志值，用于在SPATIAL_GAME、STEREO_8K、STEREO_2K、UAC1之间循环切换
-#define MODE_F3_F4_FPS_UAC2         COAX_IN_FLAG   //1  SPATIAL_GAME模式标志
-#define MODE_F5_MUSIC_UAC1          USB_IN_FLAG    // 2 F5 MUSIC
-#define MODE_F1_MUSIC_UAC2          OPT_IN_FLAG    // 3 F1 MUSIC
-#define MODE_F6_F7_FPS_UAC1         UAC1_IN_FLAG   // 4  STEREO_2K模式标志
+// 改动原因：F3/F4拆分为独立固件——Game键切F3(COAX/slot1)，AI7.1键切F4(BT/slot5)
+#define MODE_F3_FPS_UAC2            COAX_IN_FLAG   // F3 Game  (upgrade slot 1)
+#define MODE_F5_MUSIC_UAC1          USB_IN_FLAG    // F5 Music UAC1 (upgrade slot 2)
+#define MODE_F1_MUSIC_UAC2          OPT_IN_FLAG    // F1 Music UAC2 (upgrade slot 3)
+#define MODE_F6_F7_FPS_UAC1         UAC1_IN_FLAG   // F6/F7 FPS UAC1 (upgrade slot 4)
+#define MODE_F4_FPS_UAC2            BT_IN_FLAG     // F4 AI7.1  (upgrade slot 5)
+
+// 改动原因：按 game_mode(2=Game/3=AI7.1) 选择 F3 或 F4 固件标志，供启动链与 HID 复用
+static unsigned get_fps_firmware_flag(unsigned mode)
+{
+    if (mode == 3) return MODE_F4_FPS_UAC2;
+    return MODE_F3_FPS_UAC2;  // mode==2 或其它 FPS 模式默认 F3 Game
+}
 
 /* All on tile[0] */
 port p_scl = PORT_I2C_SCL;
@@ -235,14 +245,34 @@ void board_setup()
 
 // tile 0
 // called on tile 0 - start
-#define NAU88L21_PGA_GAIN_REG_MIN_USED_VALUE 0x0    // 0x1=1, 0dB (0x0, -1dB which is not used in this design)
-#define NAU88L21_PGA_GAIN_REG_MAX_VALUE 0x25+1    // 0x25=37, 36dB. +1 is for extra 1.5dB digital gain
-#define NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE (NAU88L21_PGA_GAIN_REG_MAX_VALUE)
+// 改动原因：协议层改为49级(0~48)，硬件仍是1dB步进；通过“2个等级映射1dB”实现24dB上限。
+#define MIC_HID_LEVEL_MIN 0
+#define MIC_HID_LEVEL_MAX 48
+#define MIC_HID_LEVEL_DEFAULT 24  // 24dB，保持原默认听感接近
+#define DAC_HID_LEVEL_DEFAULT 24  // 24dB，保持原默认听感接近
 
-// DAC 监听音量控制范围: 共 30 级 (0~29)
-// 0 = mute (全灭, reg 0x0034=0x0000), 1~29 = -28dB ~ 0dB，1dB/步
+#define NAU88L21_PGA_GAIN_REG_MIN_USED_VALUE 0x0    // 0=mute
+#define NAU88L21_PGA_GAIN_REG_MAX_VALUE 0x18        // 24dB上限
+#define NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE 0x16    // 22dB默认
+
+// 改动原因：49级HID等级(0.5dB/级)需映射到Codec 1dB步进寄存器，避免改动底层codec写寄存器逻辑。
+static inline unsigned mic_hid_level_to_codec_gain(unsigned hid_level)
+{
+    if (hid_level == 0) {
+        return 0;
+    }
+    // ceil(hid_level / 2)，把两档HID映射到1dB硬件步进
+    unsigned codec_gain = (hid_level + 1) >> 1;
+    if (codec_gain > NAU88L21_PGA_GAIN_REG_MAX_VALUE) {
+        codec_gain = NAU88L21_PGA_GAIN_REG_MAX_VALUE;
+    }
+    return codec_gain;
+}
+
+// 改动原因：按 SY102dac对应表.csv，将DAC HID范围扩展为49级(0~48)。
+// 0 = mute，1~48 = 有效音量等级（LED按csv映射显示）。
 #define DAC_LEVEL_MIN  0   // mute，0 LEDs
-#define DAC_LEVEL_MAX  29  // 0dB，15 LEDs
+#define DAC_LEVEL_MAX  48  // max level，15 LEDs
 #define DAC_LEVEL_DEFAULT  DAC_LEVEL_MAX
 
 static inline void NAU88C22_REGREAD(unsigned reg, unsigned &val, client interface i2c_master_if i2c)
@@ -265,6 +295,7 @@ static inline i2c_regop_res_t NAU88C22_REGWRITE(unsigned reg, unsigned val, clie
     }
     else
     {
+        debug_printf("I2C write success: reg=%08x, val=%08x\n", reg, val);
         //debug_printf("I2C write success: reg=");
         //printhex(reg);
         //debug_printf(", val=");
@@ -276,10 +307,73 @@ static inline i2c_regop_res_t NAU88C22_REGWRITE(unsigned reg, unsigned val, clie
     return result;
 }
 
-void dac_volume(signed level)
+// 改动原因：按 SY102dac对应表.csv 建立 0~48 级到 DAC 寄存器值的精确映射，
+// 修复旧线性公式导致的 dB 对应错误（例如 47级应为-0.5dB，46级应为-1dB）。
+static const uint8_t dac_level_to_reg[49] = {
+    0x0E, // [0]  mute（调用方通常直接写0x0000）
+    0x4B, // [1]  -66dB
+    0x4F, // [2]  -64dB
+    0x53, // [3]  -62dB
+    0x57, // [4]  -60dB
+    0x5B, // [5]  -58dB
+    0x5F, // [6]  -56dB
+    0x63, // [7]  -54dB
+    0x67, // [8]  -52dB
+    0x6B, // [9]  -50dB
+    0x6F, // [10] -48dB
+    0x73, // [11] -46dB
+    0x77, // [12] -44dB
+    0x7B, // [13] -42dB
+    0x7F, // [14] -40dB
+    0x83, // [15] -38dB
+    0x87, // [16] -36dB
+    0x8B, // [17] -34dB
+    0x8F, // [18] -32dB
+    0x93, // [19] -30dB
+    0x97, // [20] -28dB
+    0x9B, // [21] -26dB
+    0x9F, // [22] -24dB
+    0xA3, // [23] -22dB
+    0xA7, // [24] -20dB
+    0xA9, // [25] -19dB
+    0xAB, // [26] -18dB
+    0xAD, // [27] -17dB
+    0xAF, // [28] -16dB
+    0xB1, // [29] -15dB
+    0xB3, // [30] -14dB
+    0xB5, // [31] -13dB
+    0xB7, // [32] -12dB
+    0xB9, // [33] -11dB
+    0xBB, // [34] -10dB
+    0xBD, // [35] -9dB
+    0xBF, // [36] -8dB
+    0xC1, // [37] -7dB
+    0xC3, // [38] -6dB
+    0xC5, // [39] -5dB
+    0xC7, // [40] -4dB
+    0xC8, // [41] -3.5dB
+    0xC9, // [42] -3dB
+    0xCA, // [43] -2.5dB
+    0xCB, // [44] -2dB
+    0xCC, // [45] -1.5dB
+    0xCD, // [46] -1dB
+    0xCE, // [47] -0.5dB
+    0xCF  // [48]  0dB
+};
+
+void dac_volume(unsigned level)
 {
-    // 1dB/步: level 范围 -28 ~ 0，对应寄存器 0xcf-28=0xb3 ~ 0xcf
-    unsigned tmp = 0xcf + level;
+    if (level > DAC_LEVEL_MAX) {
+        level = DAC_LEVEL_MAX;
+    }
+    unsigned tmp = dac_level_to_reg[level];
+#if 0
+    int half_db = ((int)tmp - 0xCF); // 以 0.5dB 为单位（负数表示衰减）
+    int sign = (half_db < 0) ? -1 : 1;
+    int abs_half_db = (half_db < 0) ? -half_db : half_db;
+    debug_printf("dac_volume write level=%d reg=0x%02X db=%s%d.%d\n",
+                 level, tmp, (sign < 0) ? "-" : "", abs_half_db / 2, (abs_half_db & 1) ? 5 : 0);
+#endif
     unsafe {NAU88C22_REGWRITE(0x0034, (tmp<<8|tmp), (client interface i2c_master_if)i_i2c_client);}
 }
 
@@ -290,19 +384,13 @@ void mic_volume(unsigned level)
         // mute: 关闭PGA和输出放大器
         unsafe {NAU88C22_REGWRITE(0x007E, 0, (client interface i2c_master_if)i_i2c_client);}
         unsafe {NAU88C22_REGWRITE(0x0035, 0, (client interface i2c_master_if)i_i2c_client);}
-    }
-    else if(level == NAU88L21_PGA_GAIN_REG_MAX_VALUE)
-    {
-        // 内部最大值 (reg=38, +1.5dB数字增益，仅firmware使用)
-        // PGA设到最大(37=0x25)，数字增益额外+1.5dB
-        unsafe {NAU88C22_REGWRITE(0x007E, (NAU88L21_PGA_GAIN_REG_MAX_VALUE-1) << 8, (client interface i2c_master_if)i_i2c_client);}
-        unsafe {NAU88C22_REGWRITE(0x0035, (0xd2d2), (client interface i2c_master_if)i_i2c_client);}
+        debug_printf("mic_volume mute\n");
     }
     else
     {
-        // 1-37: 0dB ~ 36dB，1dB/步
+        // 改动原因：移除旧版37~38寄存器额外数字增益路径，最大限制到24dB（1~24，1dB/步）。
         debug_printf("mic_volume write reg=%d\n", level);
-        unsafe {NAU88C22_REGWRITE(0x007E, (level << 8), (client interface i2c_master_if)i_i2c_client);}
+        unsafe {NAU88C22_REGWRITE(0x007E, ((level + 4) << 8), (client interface i2c_master_if)i_i2c_client);}
         unsafe {NAU88C22_REGWRITE(0x0035, (0xcfcf), (client interface i2c_master_if)i_i2c_client);}
     }
 }
@@ -320,10 +408,7 @@ void codec_init(void)
     }
 
     // ADCL PGA default setting
-    if(NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE == NAU88L21_PGA_GAIN_REG_MAX_VALUE)
-        unsafe {NAU88C22_REGWRITE(0x007E, (NAU88L21_PGA_GAIN_REG_MAX_VALUE-1) << 8, (client interface i2c_master_if)i_i2c_client);}
-    else
-        unsafe {NAU88C22_REGWRITE(0x007E, NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE << 8, (client interface i2c_master_if)i_i2c_client);}
+    unsafe {NAU88C22_REGWRITE(0x007E, NAU88L21_PGA_GAIN_REG_DEFAULT_VALUE << 8, (client interface i2c_master_if)i_i2c_client);}
 
     //debug_printfln("Codec init finished");
 }
@@ -430,10 +515,12 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
 
     //port_enable(p_button_music_mode);
 
-    // 出厂默认：麦克风21dB (reg=22), 监听-14dB (level=15)
-    int codec_adc_pga_gain_reg_value = 22;  // 21dB
+    // 改动原因：麦克风默认值改为49级中的44级（约22dB），上限受24dB约束。
+    // 改动原因：本变量改为保存“49级HID音量等级”(0~48)，便于旋钮/HID统一一套等级语义。
+    int codec_adc_pga_gain_reg_value = MIC_HID_LEVEL_DEFAULT;
 
-    int dac_level = 15;  // -14dB (DAC_LEVEL_MAX - 14 = 29 - 14 = 15)
+    // 改动原因：默认监听音量从旧30级体系迁移到49级体系，保持中高音量默认值。
+    int dac_level = DAC_HID_LEVEL_DEFAULT;
 
     // mic endcoder 变量
     uint8_t prev_encode_input1 = 0;
@@ -456,8 +543,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     // active_mode: 0=off, 1=music (LED_MUSIC, no algorithm),
     //              2=game (LED_GAME_MODE, IR_GAME), 3=AI7.1 (LED_AI7_1, IR_7_1_GAME)
     unsigned active_mode = 0;
-    // 脚步增强3档状态: 0=关(0dB), 1=中亮/6dB, 2=高亮/12dB；出厂默认开启(12dB)
-    unsigned flag_footsteps_enhancement = 2;
+    // 改动原因：脚步增强改为2档——0=关(0dB)，1=开(15dB)；出厂默认开启(15dB)
+    unsigned flag_footsteps_enhancement = 1;
     // 出厂默认：AI降噪开启
     unsigned flag_aidenoise_onoff = 1;
     unsigned dnr_strength_saved = 100;  // AI降噪重新开启时恢复的强度（0x85可更新）
@@ -469,7 +556,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     unsigned push_button_game_mode_state_old = 1; // Active low
     unsigned push_button_footsteps_enhancement_state_old = 0; // Active low
     unsigned push_button_aidenoise_onoff_state_old = 1; // Active low
-    unsigned char saved_footstep = 0;
+    unsigned char saved_footstep = 15;  // 改动原因：与出厂默认15dB一致，flash加载前临时初值
 
 
 
@@ -536,22 +623,26 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     debug_printf("Loaded game_mode from flash: %d\n", saved_mode);
 
 #if USE_EX3D == 1
-    // 加载脚步增强状态（保存值为expand_gain: 0/6/12）
+    // 改动原因：加载脚步增强（2档 expand_gain: 0/15）；旧固件6/12等非零值迁移为15
     {
         unsigned char footstep_path[] = "footstep";
         saved_footstep = load_value(footstep_path);
         debug_printf("Loaded footstep gain from flash: %d\n", saved_footstep);
         if (saved_footstep == 0) {
             flag_footsteps_enhancement = 0;
-        } else if (saved_footstep <= 6) {
+        } else if (saved_footstep == 15) {
             flag_footsteps_enhancement = 1;
-        } else if (saved_footstep <= 20) {
-            flag_footsteps_enhancement = 2;
+        } else if (saved_footstep > 0 && saved_footstep <= 20) {
+            // 旧3档(6/12)或其它历史非零增益：统一迁移为15dB开档
+            saved_footstep = 15;
+            flag_footsteps_enhancement = 1;
+            save_value(footstep_path, (unsigned char)15);
+            debug_printf("Migrated footstep gain to flash: %d\n", saved_footstep);
         } else {
-            // 未初始化(255)或异常值：出厂默认脚步增强开启(12dB)，写入flash
-            saved_footstep = 12;
-            flag_footsteps_enhancement = 2;
-            save_value(footstep_path, (unsigned char)12);
+            // 未初始化(255)或异常值：出厂默认脚步增强开启(15dB)，写入flash
+            saved_footstep = 15;
+            flag_footsteps_enhancement = 1;
+            save_value(footstep_path, (unsigned char)15);
             debug_printf("Saved footstep gain to flash: %d\n", saved_footstep);
         }
         debug_printf("Loaded footstep gain from flash: %d, state=%d\n", saved_footstep, flag_footsteps_enhancement);
@@ -583,7 +674,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
 
     if (host_os == OS_WIN) {
         debug_printf("Detected Windows OS (OS_WIN)  saved_mode: %d\n", saved_mode);
-        unsigned flag = (saved_mode <= 1) ? MODE_F1_MUSIC_UAC2 : MODE_F3_F4_FPS_UAC2;
+        // 改动原因：Windows 下 mode2→F3 Game，mode3→F4 AI7.1，不再共用 F3_F4 合并固件
+        unsigned flag = (saved_mode <= 1) ? MODE_F1_MUSIC_UAC2 : get_fps_firmware_flag(saved_mode);
         SetRoleSwitchFlag(flag);
 #ifndef DISABLE_REBOOT
         device_reboot();
@@ -690,10 +782,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     // 从 Flash 恢复 mic/dac 音量
     {
         unsigned char saved_mic = load_value(mic_vol_path);
-        if(saved_mic >= NAU88L21_PGA_GAIN_REG_MIN_USED_VALUE && saved_mic <= NAU88L21_PGA_GAIN_REG_MAX_VALUE)
+        if(saved_mic >= MIC_HID_LEVEL_MIN && saved_mic <= MIC_HID_LEVEL_MAX)
             codec_adc_pga_gain_reg_value = saved_mic;
         else
-            save_value(mic_vol_path, (unsigned char)codec_adc_pga_gain_reg_value); // 出厂默认22(21dB)
+            save_value(mic_vol_path, (unsigned char)codec_adc_pga_gain_reg_value); // 出厂默认44级（约22dB）
 
         unsigned char saved_dac = load_value(dac_vol_path);
         if(saved_dac <= DAC_LEVEL_MAX)
@@ -783,12 +875,12 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     codec_init();
     // 同步全局音量变量与从Flash恢复的dac_level / codec_adc_pga_gain_reg_value
     g_volume_level = dac_level;
-    // 麦克风HID范围上限37 (register=38的+1.5dB仅firmware内部使用)
-    g_mic_volume_level = (codec_adc_pga_gain_reg_value <= 37) ? codec_adc_pga_gain_reg_value : 37;
+    // 改动原因：g_mic_volume_level 直接使用49级HID等级，避免旧版37级上限截断。
+    g_mic_volume_level = (codec_adc_pga_gain_reg_value <= MIC_HID_LEVEL_MAX) ? codec_adc_pga_gain_reg_value : MIC_HID_LEVEL_MAX;
 
     // ADCL PGA default setting（mic_volume内部已根据g_monitor_switch决定是否启用耳返通路）
     // 若mic_mute已从flash恢复为1，则此处先以正常gain调用，再用mute覆盖
-    mic_volume(codec_adc_pga_gain_reg_value);
+    mic_volume(mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value));
     {
         int mic_led_count = flag_mic_mute ? 15 : mic_gain_to_led[codec_adc_pga_gain_reg_value];
         for(int i = 0; i < 15; i++)
@@ -813,7 +905,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     if(dac_level == DAC_LEVEL_MIN)
         unsafe { NAU88C22_REGWRITE(0x0034, 0x0000, (client interface i2c_master_if)i_i2c_client); }
     else
-        dac_volume(dac_level - DAC_LEVEL_MAX);
+        dac_volume(dac_level);
     {
         int dac_led_count = flag_hp_mute ? 15 : dac_gain_to_led[dac_level];
         for(int i = 0; i < 15; i++)
@@ -893,13 +985,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
         }
     }
 
-    // 恢复脚步增强LED初始状态
+    // 改动原因：2档脚步增强——仅开档(15dB)点亮LED
     if (flag_footsteps_enhancement == 1) {
         led_on(&led_ctx, LED_FOOTSTEP_MODE);
         led_update_all(&led_ctx);
-    } else if (flag_footsteps_enhancement == 2) {
-        led_set_brightness(&led_ctx, LED_FOOTSTEP_MODE, 128);
-        led_update_all(&led_ctx);
     }
 #endif
 
@@ -945,7 +1034,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
     {
         unsigned music_init, game_init;
         p_button_music_mode :> music_init;
-        p_button_game_mode  :> game_init;
+        p_button_game_mode  :> game_init;//
         if (music_init == 0 && game_init == 0) {
             fr_inhibit = 1;
             btn_combo_active = 1;
@@ -1171,8 +1260,15 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                     mic_det_muted = 0;
                     // 恢复音量，但如果用户手动mute了则不恢复
                     if (!flag_mic_mute) {
-                        mic_volume(codec_adc_pga_gain_reg_value);
-                        debug_printf("mic_det: unmute -> pga=%d\n", codec_adc_pga_gain_reg_value);
+                        // 改动原因（关键修复）：
+                        // codec_adc_pga_gain_reg_value 在当前版本保存的是 49级HID音量等级(0~48)，不是Codec寄存器原始值。
+                        // 这里之前直接写 mic_volume(codec_adc_pga_gain_reg_value) 会绕过统一映射逻辑，
+                        // 造成“插拔后恢复增益”与“旋钮/HID设置增益”不一致，表现为录音音量异常（偏小/不稳定）。
+                        // 必须与其它路径保持一致，先做 HID->Codec PGA 映射再写寄存器。
+                        unsigned codec_gain = mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value);
+                        mic_volume(codec_gain);
+                        debug_printf("mic_det: unmute -> hid=%d codec_pga=%d\n",
+                                     codec_adc_pga_gain_reg_value, codec_gain);
                     }
                 } else if (mic_det_cmd == MIC_DET_DAC_MUTE) {
                     dac_det_muted = 1;
@@ -1183,7 +1279,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                     dac_det_muted = 0;
                     // 恢复DAC音量，但如果用户手动hp_mute或dac_level==0则不恢复
                     if (!flag_hp_mute && dac_level > DAC_LEVEL_MIN) {
-                        dac_volume(dac_level - DAC_LEVEL_MAX);
+                        dac_volume(dac_level);
                         debug_printf("mic_det: dac unmute -> level=%d\n", dac_level);
                     }
                 }
@@ -1232,9 +1328,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                 //   Music btn: toggle LED locally (no reboot)
                 //   Game/AI7.1 btn: save mode + reboot (F5 will route to FPS firmware)
                 //
-                // FPS firmware (F3/F4, F6/F7): USE_EX3D set
+                // FPS firmware (F3 Game / F4 AI7.1, F6/F7): USE_EX3D set
                 //   Music btn: save mode=1 + reboot (F5 will route to music firmware)
-                //   Game/AI7.1 btn: switch IR algorithm locally (no reboot)
+                //   F3: Game 本地切 mode2；AI7.1 需重启切 F4
+                //   F4: AI7.1 本地切 mode3；Game 需重启切 F3
 
                 unsigned mode_btn_change = 0;
                 unsigned need_reboot = 0;
@@ -1303,7 +1400,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                         if (!btn_combo_active) {
                             if (btn_music_hold_ticks == BTN_COMBO_DELAY_TICKS) {
                                 debug_printf("Music button pressed for %d ticks\n", BTN_COMBO_DELAY_TICKS);
-#if (F3_F4_FPS_UAC2 == 1)
+#if (F3_FPS_UAC2 == 1) || (F4_FPS_UAC2 == 1)
+                                // 改动原因：F3/F4 FPS 固件按 Music 键切回 F1 Music
                                 active_mode = 1;
                                 need_reboot = 1;
                                 SetRoleSwitchFlag(MODE_F1_MUSIC_UAC2);
@@ -1336,9 +1434,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                             if (btn_game_hold_ticks == BTN_COMBO_DELAY_TICKS) {
                                 debug_printf("Game button pressed for %d ticks\n", BTN_COMBO_DELAY_TICKS);
 #if F1_MUSIC_UAC2 == 1
+                                // 改动原因：Music 固件按 Game 键启动 F3 Game 固件
                                 active_mode = 2;
                                 need_reboot = 1;
-                                SetRoleSwitchFlag(MODE_F3_F4_FPS_UAC2);
+                                SetRoleSwitchFlag(MODE_F3_FPS_UAC2);
 #elif (F5_MUSIC_UAC1 == 1)
                                 // UAC1 Music firmware: game needs F6/F7, reboot if not already game
                                 if (active_mode != 2) {
@@ -1352,11 +1451,17 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                     active_mode = 2;
                                     mode_btn_change = 1;
                                 }
-#else
+#elif (F3_FPS_UAC2 == 1)
+                                // 改动原因：已在 F3 Game 固件，Game 键仅本地切 mode2
                                 if (active_mode != 2) {
                                     active_mode = 2;
                                     mode_btn_change = 1;
                                 }
+#elif (F4_FPS_UAC2 == 1)
+                                // 改动原因：F4 AI7.1 固件按 Game 键需重启加载 F3 Game 固件
+                                active_mode = 2;
+                                need_reboot = 1;
+                                SetRoleSwitchFlag(MODE_F3_FPS_UAC2);
 #endif
                             }
                         }
@@ -1372,10 +1477,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                 if (button_ai71_onoff == 0) {
                     if (push_button_ai71_onoff_state_old == 1) {
 #if (F1_MUSIC_UAC2 == 1)
-                        // Music-only firmware: AI7.1 needs FPS firmware
+                        // 改动原因：Music 固件按 AI7.1 键启动 F4 AI7.1 固件
                         active_mode = 3;
                         need_reboot = 1;
-                        SetRoleSwitchFlag(MODE_F3_F4_FPS_UAC2);
+                        SetRoleSwitchFlag(MODE_F4_FPS_UAC2);
 #elif (F5_MUSIC_UAC1 == 1)
                         // UAC1 Music firmware: AI71 needs F6/F7 FPS, reboot if not already AI71
                         if (active_mode != 3) {
@@ -1389,12 +1494,17 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                             active_mode = 3;
                             mode_btn_change = 1;
                         }
-#else
-                        // FPS firmware: switch algorithm locally (activate if not already)
+#elif (F4_FPS_UAC2 == 1)
+                        // 改动原因：已在 F4 AI7.1 固件，AI7.1 键仅本地切 mode3
                         if (active_mode != 3) {
                             active_mode = 3;
                             mode_btn_change = 1;
                         }
+#elif (F3_FPS_UAC2 == 1)
+                        // 改动原因：F3 Game 固件按 AI7.1 键需重启加载 F4 AI7.1 固件
+                        active_mode = 3;
+                        need_reboot = 1;
+                        SetRoleSwitchFlag(MODE_F4_FPS_UAC2);
 #endif
                     }
                 }
@@ -1407,20 +1517,40 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                     if (hid_req_mode != (unsigned)-1) {
                         SET_SHARED_GLOBAL(g_request_game_mode, (unsigned)-1);
                         unsigned target = (hid_req_mode <= 3) ? hid_req_mode : 0;
-#if (F3_F4_FPS_UAC2 == 1)
+#if (F3_FPS_UAC2 == 1) || (F4_FPS_UAC2 == 1)
+                        // 改动原因：HID 0xA4 在 F3/F4 间切换需跨固件重启，同固件则本地切算法
                         if (target == 1) {
                             active_mode = target;
                             need_reboot = 1;
                             SetRoleSwitchFlag(MODE_F1_MUSIC_UAC2);
-                        } else {
-                            active_mode = target;
-                            mode_btn_change = 1;
+                        } else if (target == 2) {
+#if (F3_FPS_UAC2 == 1)
+                            if (active_mode != 2) {
+                                active_mode = 2;
+                                mode_btn_change = 1;
+                            }
+#else
+                            active_mode = 2;
+                            need_reboot = 1;
+                            SetRoleSwitchFlag(MODE_F3_FPS_UAC2);
+#endif
+                        } else if (target == 3) {
+#if (F4_FPS_UAC2 == 1)
+                            if (active_mode != 3) {
+                                active_mode = 3;
+                                mode_btn_change = 1;
+                            }
+#else
+                            active_mode = 3;
+                            need_reboot = 1;
+                            SetRoleSwitchFlag(MODE_F4_FPS_UAC2);
+#endif
                         }
 #elif (F1_MUSIC_UAC2 == 1)
                         if (target >= 2) {
                             active_mode = target;
                             need_reboot = 1;
-                            SetRoleSwitchFlag(MODE_F3_F4_FPS_UAC2);
+                            SetRoleSwitchFlag(get_fps_firmware_flag(target));
                         } else {
                             active_mode = target;
                             mode_btn_change = 1;
@@ -1514,8 +1644,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                 case 3: led_on(&led_ctx, LED_AI7_1);     break;
                                 default: break;
                             }
+                            // 改动原因：2档脚步增强，开档(15dB)恢复全亮LED
                             if (flag_footsteps_enhancement == 1) led_on(&led_ctx, LED_FOOTSTEP_MODE);
-                            else if (flag_footsteps_enhancement == 2) led_set_brightness(&led_ctx, LED_FOOTSTEP_MODE, 128);
                             if (flag_aidenoise_onoff) led_on(&led_ctx, LED_ANC);
                             led_update_all(&led_ctx);
                             // 等待松键，防止重启后再次触发出厂恢复循环
@@ -1529,8 +1659,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                 delay_milliseconds(100);
                             }
 #endif
-                            // 出厂恢复默认AI7.1模式（mode=3），需要F3/F4固件
-                            SetRoleSwitchFlag(MODE_F3_F4_FPS_UAC2);
+                            // 改动原因：出厂默认 AI7.1(mode=3)，启动 F4 AI7.1 固件
+                            SetRoleSwitchFlag(MODE_F4_FPS_UAC2);
                             delay_milliseconds(20);
 #ifndef DISABLE_REBOOT
                             device_reboot();
@@ -1564,10 +1694,10 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                 {
                     if(push_button_footsteps_enhancement_state_old == 1)
                     {
-                        // 3档循环: 0(关/0dB) → 1(中亮/6dB) → 2(高亮/12dB) → 0
-                        flag_footsteps_enhancement = (flag_footsteps_enhancement + 1) % 3;
+                        // 改动原因：2档循环: 0(关/0dB) ↔ 1(开/15dB)
+                        flag_footsteps_enhancement = (flag_footsteps_enhancement + 1) % 2;
                         mode_change = 1;
-                        debug_printf("Footstep mode changed: %d -> %d\n", flag_footsteps_enhancement, flag_footsteps_enhancement + 1);
+                        debug_printf("Footstep mode changed to state=%d\n", flag_footsteps_enhancement);
                     }
                 }
                 push_button_footsteps_enhancement_state_old = button_footsteps_enhancement;
@@ -1575,18 +1705,13 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                 {
                     if(flag_footsteps_enhancement == 0)
                     {
-                        saved_footstep = 0;
+                        saved_footstep = 0;  // 改动原因：关档 0dB
                         led_off(&led_ctx, LED_FOOTSTEP_MODE);
                     }
-                    else if(flag_footsteps_enhancement == 1)
-                    {
-                        saved_footstep = 6;
-                        led_on(&led_ctx, LED_FOOTSTEP_MODE);
-                    }
                     else
                     {
-                        saved_footstep = 12;
-                        led_set_brightness(&led_ctx, LED_FOOTSTEP_MODE, 128);
+                        saved_footstep = 15;  // 改动原因：开档 15dB（唯一增强档）
+                        led_on(&led_ctx, LED_FOOTSTEP_MODE);
                     }
                     led_update_all(&led_ctx);
                     // 发送expand_gain到tile1执行
@@ -1604,30 +1729,29 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                     GET_SHARED_GLOBAL(hid_gain_req, g_hid_expand_gain_request);
                     if (hid_gain_req != (unsigned)-1) {
                         SET_SHARED_GLOBAL(g_hid_expand_gain_request, (unsigned)-1);
-                        // 将增益值映射到footstep档位
+                        // 改动原因：HID增益映射到2档——0=关，非0=开(15dB)
                         unsigned new_state;
+                        unsigned char gain_to_save;
                         if (hid_gain_req == 0) {
                             new_state = 0;
-                        } else if (hid_gain_req <= 6) {
-                            new_state = 1;
+                            gain_to_save = 0;
                         } else {
-                            new_state = 2;
+                            new_state = 1;
+                            gain_to_save = 15;
                         }
                         if (new_state != (unsigned)flag_footsteps_enhancement) {
                             flag_footsteps_enhancement = (int)new_state;
                             if (flag_footsteps_enhancement == 0) {
                                 led_off(&led_ctx, LED_FOOTSTEP_MODE);
-                            } else if (flag_footsteps_enhancement == 1) {
-                                led_on(&led_ctx, LED_FOOTSTEP_MODE);
                             } else {
-                                led_set_brightness(&led_ctx, LED_FOOTSTEP_MODE, 128);
+                                led_on(&led_ctx, LED_FOOTSTEP_MODE);
                             }
                             led_update_all(&led_ctx);
                         }
 
                         unsigned char fp[] = "footstep";
-                        save_value(fp, (unsigned char)hid_gain_req);
-                        saved_footstep = hid_gain_req;
+                        save_value(fp, gain_to_save);
+                        saved_footstep = gain_to_save;
                         debug_printf("HID set footstep gain=%d, state=%d\n", hid_gain_req, flag_footsteps_enhancement);
                     }
                 }
@@ -1748,8 +1872,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                     else
                     {
                         if (!mic_det_muted)
-                            mic_volume(codec_adc_pga_gain_reg_value);
-                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= 37) ? codec_adc_pga_gain_reg_value : 37;
+                            mic_volume(mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value));
+                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= MIC_HID_LEVEL_MAX) ? codec_adc_pga_gain_reg_value : MIC_HID_LEVEL_MAX;
                         mic_mute_blink_tick = 0;
                         for(int i = 0; i < 15; i++)
                             led_off(&led_ctx, led_l_physical_map[i]);
@@ -1787,14 +1911,17 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
 
                                 // 执行音量调节
                                 if(current_dir == 1) {  // 顺时针
-                                    if((codec_adc_pga_gain_reg_value < NAU88L21_PGA_GAIN_REG_MAX_VALUE) && (flag_mic_mute == 0)) {
+                                    if((codec_adc_pga_gain_reg_value < MIC_HID_LEVEL_MAX) && (flag_mic_mute == 0)) {
                                         uint8_t old_led_count = mic_gain_to_led[codec_adc_pga_gain_reg_value];
 
-                                        ++codec_adc_pga_gain_reg_value;
+                                        codec_adc_pga_gain_reg_value = codec_adc_pga_gain_reg_value + 2;
+                                        if (codec_adc_pga_gain_reg_value > MIC_HID_LEVEL_MAX) {
+                                            codec_adc_pga_gain_reg_value = MIC_HID_LEVEL_MAX;
+                                        }
 
                                         if (!mic_det_muted)
-                                            mic_volume(codec_adc_pga_gain_reg_value);
-                                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= 37) ? codec_adc_pga_gain_reg_value : 37;
+                                            mic_volume(mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value));
+                                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= MIC_HID_LEVEL_MAX) ? codec_adc_pga_gain_reg_value : MIC_HID_LEVEL_MAX;
                                         debug_printf("volume up %d\n", codec_adc_pga_gain_reg_value);
                                         save_value(mic_vol_path, codec_adc_pga_gain_reg_value);
                                         uint8_t new_led_count = mic_gain_to_led[codec_adc_pga_gain_reg_value];
@@ -1810,15 +1937,18 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                     if((codec_adc_pga_gain_reg_value > 0) && (flag_mic_mute == 0)) {
                                         uint8_t old_led_count = mic_gain_to_led[codec_adc_pga_gain_reg_value];
 
-                                        --codec_adc_pga_gain_reg_value;
+                                        codec_adc_pga_gain_reg_value = codec_adc_pga_gain_reg_value - 2;
+                                        if (codec_adc_pga_gain_reg_value < 0) {
+                                            codec_adc_pga_gain_reg_value = 0;
+                                        }
 
                                         if (!mic_det_muted) {
                                             if (codec_adc_pga_gain_reg_value == 0)
                                                 mic_volume(0);
                                             else
-                                                mic_volume(codec_adc_pga_gain_reg_value);
+                                                mic_volume(mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value));
                                         }
-                                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= 37) ? codec_adc_pga_gain_reg_value : 37;
+                                        g_mic_volume_level = (codec_adc_pga_gain_reg_value <= MIC_HID_LEVEL_MAX) ? codec_adc_pga_gain_reg_value : MIC_HID_LEVEL_MAX;
                                         debug_printf("volume down %d\n", codec_adc_pga_gain_reg_value);
                                         save_value(mic_vol_path, codec_adc_pga_gain_reg_value);
 
@@ -1898,10 +2028,13 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                         uint8_t old_led_count = dac_gain_to_led[dac_level];
 
                                         // 增加音量
-                                        ++dac_level;
+                                        dac_level = dac_level + 2;
+                                        if (dac_level > DAC_LEVEL_MAX) {
+                                            dac_level = DAC_LEVEL_MAX;
+                                        }
                                         g_volume_level = dac_level;
                                         if (!dac_det_muted)
-                                            dac_volume(dac_level - DAC_LEVEL_MAX);
+                                            dac_volume(dac_level);
                                         save_value(dac_vol_path, dac_level);
 
                                         uint8_t new_led_count = dac_gain_to_led[dac_level];
@@ -1918,13 +2051,16 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                         uint8_t old_led_count = dac_gain_to_led[dac_level];
 
                                         // 减小音量
-                                        --dac_level;
+                                        dac_level = dac_level - 2;
+                                        if (dac_level < DAC_LEVEL_MIN) {
+                                            dac_level = DAC_LEVEL_MIN;
+                                        }
                                         g_volume_level = dac_level;
                                         if (!dac_det_muted) {
                                             if(dac_level == DAC_LEVEL_MIN)
                                                 unsafe { NAU88C22_REGWRITE(0x0034, 0x0000, (client interface i2c_master_if)i_i2c_client); }
                                             else
-                                                dac_volume(dac_level - DAC_LEVEL_MAX);
+                                                dac_volume(dac_level);
                                         }
                                         save_value(dac_vol_path, dac_level);
 
@@ -2001,7 +2137,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                             if(dac_level == DAC_LEVEL_MIN)
                                 unsafe { NAU88C22_REGWRITE(0x0034, 0x0000, (client interface i2c_master_if)i_i2c_client); }
                             else
-                                dac_volume(dac_level - DAC_LEVEL_MAX);
+                                dac_volume(dac_level);
                         }
                         g_volume_level = dac_level;
                         hp_mute_blink_tick = 0;
@@ -2059,7 +2195,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                             if (dac_level == DAC_LEVEL_MIN)
                                 unsafe { NAU88C22_REGWRITE(0x0034, 0x0000, (client interface i2c_master_if)i_i2c_client); }
                             else
-                                dac_volume(dac_level - DAC_LEVEL_MAX);
+                                dac_volume(dac_level);
                         }
                         save_value(dac_vol_path, (unsigned char)dac_level);
                         // 更新DAC音量指示LED
@@ -2079,7 +2215,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                 if (g_request_mic_volume_set) {
                     g_request_mic_volume_set = 0;
                     unsigned new_mic_level = g_mic_volume_level;
-                    if (new_mic_level <= 37) {  // 0=mute, 1-37=0dB~36dB
+                    if (new_mic_level <= MIC_HID_LEVEL_MAX) {  // 0=mute, 1~48=0~24dB（0.5dB/级）
                         uint8_t new_led_count;
                         if (new_mic_level == 0) {
                             // mute: 静音硬件，codec_adc_pga_gain_reg_value设为0（与编码器静音一致）
@@ -2089,7 +2225,7 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                         } else {
                             codec_adc_pga_gain_reg_value = new_mic_level;
                             if (!mic_det_muted)
-                                mic_volume(codec_adc_pga_gain_reg_value);
+                                mic_volume(mic_hid_level_to_codec_gain(codec_adc_pga_gain_reg_value));
                             new_led_count = mic_gain_to_led[codec_adc_pga_gain_reg_value];
                         }
                         save_value(mic_vol_path, (unsigned char)codec_adc_pga_gain_reg_value);
@@ -2190,8 +2326,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
                                 ptr[i] = 0x00;
                         }
                         hidSetChangePending(0x1);
-                        debug_printf("Mic volume changed: %d -> %d, HID report sent\n",
-                                     g_last_mic_volume_level, current_mic_level);
+                      //  debug_printf("Mic volume changed: %d -> %d, HID report sent\n",
+                       //              g_last_mic_volume_level, current_mic_level);
                     }
                     g_last_mic_volume_level = current_mic_level;
                 }
@@ -2333,7 +2469,8 @@ void button_task(chanend c_hidSendData, chanend cc_mic_level, chanend c_uac_vol,
 #if UAC1_MODE == 1
                 GET_SHARED_GLOBAL(host_os, g_host_os);
                 if (host_os == OS_WIN) {
-                    unsigned flag = (saved_mode <= 1) ? MODE_F1_MUSIC_UAC2 : MODE_F3_F4_FPS_UAC2;
+                    // 改动原因：运行时 OS 检测为 Windows 时按 mode 路由 F1/F3/F4
+                    unsigned flag = (saved_mode <= 1) ? MODE_F1_MUSIC_UAC2 : get_fps_firmware_flag(saved_mode);
                     SetRoleSwitchFlag(flag);
 #ifndef DISABLE_REBOOT
                     device_reboot();
@@ -2442,12 +2579,12 @@ void mute_handler(chanend c_mic_det)
 
     // 如果开机时全拔出，发送mute
 
-    if (((det_val & 0b1110) == 0b1110) || ((det_val & 0b1110) == 0b1010) || ((det_val & 0b1110) == 0b0010)) {
+    if (((det_val & 0b1110) == 0b1110) || ((det_val & 0b1110) == 0b1010) || ((det_val & 0b1110) == 0b0010) || ((det_val & 0b1110) == 0b1000)) {
         // 有mic插入，恢复mic音量状态
         c_mic_det <: (unsigned)MIC_DET_UNMUTE;
         debug_printf("mic stable -> unmute\n");
     }
- 
+
     timer tmr;
     unsigned time;
     tmr :> time;
@@ -2512,7 +2649,7 @@ void mute_handler(chanend c_mic_det)
 
 #endif
 
-                    if (((det_val & 0b1110) == 0b1110) || ((det_val & 0b1110) == 0b1010) || ((det_val & 0b1110) == 0b0010)) {
+                    if (((det_val & 0b1110) == 0b1110) || ((det_val & 0b1110) == 0b1010) || ((det_val & 0b1110) == 0b0010) || ((det_val & 0b1110) == 0b1000)) {
                         // 有mic插入，恢复mic音量状态
                         c_mic_det <: (unsigned)MIC_DET_UNMUTE;
                         debug_printf("mic stable -> unmute\n");

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/br_wrapper.c

@@ -9,25 +9,38 @@
 #include <xs1.h>
 #include <xcore/chanend.h>
 #include <xcore/channel.h>
+#include <xcore/channel_streaming.h>
 #include "xc_ptr.h"
 
 #include "xua_conf.h"
-
 #include "share_buffer.h"
 
 extern uint32_t init_eq_data(unsigned sample_freq);
 
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+/* 改动原因：3 streaming chan + 1 普通 chan 传 us 192kHz（跨 tile 静态内存不共享） */
+uint32_t uc_ssrc_ds_in;    /* tile[0]→tile[1] 192kHz mic */
+uint32_t uc_ssrc_ds_out;   /* tile[1]→tile[0] 48kHz 降采样结果 */
+uint32_t uc_ssrc_us_in;    /* tile[0]→tile[1] 48kHz DNR 后 */
+uint32_t uc_ssrc_us_out;   /* tile[1]→tile[0] 192kHz 升采样结果（普通chan） */
+#endif
+
 void dnr_exchange_buffer(int32_t *data);
 
 // sample_freq 作为首字发送给 tile[0] 的 dsp_main，用于采样率变化检测和 EQ 初始化
 void buffer_exchange(chanend_t c_data, unsigned sampsFromUsbToAudio[], unsigned sampsFromAudioToUsb[], unsigned sample_freq) {
-    chan_out_word(c_data, sample_freq);
-    chan_out_buf_word (c_data, sampsFromUsbToAudio, 2);
-    chan_in_buf_word  (c_data , sampsFromUsbToAudio, 2);
-#if DNR_ENABLE == 1
-    chan_out_buf_word (c_data, sampsFromAudioToUsb, 2);
-    chan_in_buf_word  (c_data , sampsFromAudioToUsb, 2);
-#endif
+    unsigned data_in[4] = {0,0,0,0};
+    unsigned data_out[4] = {0,0,0,0};
+    data_in[0] = sampsFromUsbToAudio[0];
+    data_in[1] = sampsFromUsbToAudio[1];
+    data_in[2] = sampsFromAudioToUsb[0];
+    data_in[3] = sampsFromAudioToUsb[1];
+    chan_out_buf_word (c_data, data_in, 4);
+    chan_in_buf_word  (c_data , data_out, 4);
+    sampsFromUsbToAudio[0] = data_out[0];
+    sampsFromUsbToAudio[1] = data_out[1];
+    sampsFromAudioToUsb[0] = data_out[2];
+    sampsFromAudioToUsb[1] = data_out[3];
 }
 
 
@@ -38,40 +51,111 @@ void dsp_main (chanend_t c_data) {
     int mic_output[I2S_CHANS_ADC];
     int count = 0;
     unsigned ch[1] = {2};
+    unsigned data_in[4] = {0,0,0,0};
+    unsigned data_out[4] = {0,0,0,0};
 #if F1_MUSIC_UAC2 == 1
-    unsigned current_sample_freq = 0;
+    unsigned current_sample_freq = 192000;
 #else
     unsigned current_sample_freq = 48000;
 #endif
-    while (1) {
-        unsigned sample_freq = (unsigned)chan_in_word(c_data);
-        chan_in_buf_word (c_data , play_input, 2);
 
-        // 采样率变化：重新初始化 EQ 系数并清空 ring buffer，避免残留状态污染
-        if (sample_freq != current_sample_freq && sample_freq != 0) {
-            current_sample_freq = sample_freq;
-            init_eq_data(sample_freq);
-            clear_ring_buffer(0);
-            clear_ring_buffer(1);
-            clear_ring_buffer(2);
-            clear_ring_buffer(3);
-            play_output[0] = 0;
-            play_output[1] = 0;
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+    static int mic_48k[2]      = {0, 0};
+    static int us_cache[4][2]  = {{0}};
+    static int us_cache_idx    = 4;   /* 4=无有效缓存输出静音；0-3=当前消费 pair 索引 */
+    static int ds_tick         = 0;   /* 每拍+1，满4拍处理一次 48kHz */
+    /* 改动原因：第一个 tick4 时 us_out 还没有数据，不能阻塞读；
+     * 之后每个 tick4 先读上一批（已就绪）再触发下一批，规避同拍等待 us_stereo 计算延迟 */
+    static int us_first_batch  = 1;
+#endif
+
+    init_eq_data(current_sample_freq);
+    clear_ring_buffer(0);
+    clear_ring_buffer(1);
+    clear_ring_buffer(2);
+    clear_ring_buffer(3);
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+            /* 改动原因：采样率变化时复位所有 SSRC 状态，下一批重新从头开始 */
+            ds_tick        = 0;
+            us_cache_idx   = 4;
+            us_first_batch = 1;
+#endif
+ 
+    while (1) {
+        chan_in_buf_word(c_data, data_in, 4);
+        chan_out_buf_word(c_data, data_out, 4);
+
+#if EQ_ENABLE == 1
+        write_to_ring_buffer(0, data_in[0]);
+        write_to_ring_buffer(1, data_in[1]);
+        data_out[0] = read_from_ring_buffer(2);
+        data_out[1] = read_from_ring_buffer(3);
+//        data_out[0] = data_in[0];
+//        data_out[1] = data_in[1];
+#else
+        data_out[0] = data_in[0];
+        data_out[1] = data_in[1];
+#endif
+
+#if DNR_ENABLE == 1
+  #if F1_MUSIC_UAC2 == 1
+        /* F1: 192kHz→48kHz(DS)→DNR→48kHz→192kHz(US)
+         *
+         * 时序优化说明：
+         *   原设计在 tick4 同一拍内"发 us_in → 等 us_stereo 计算 → 读8个 us_out"，
+         *   us_stereo 在 tile[1] 独立线程运算需 2-5µs，导致 tick4 总延迟超过 5.2µs
+         *   (192kHz 单拍周期)，buffer_exchange 响应超时引发噪音。
+         *
+         *   当前设计：每个 tick4 先读上一批已就绪的 8 个 us_out 字（us_rec_output_core
+         *   在前 3 拍期间已完成并阻塞等待消费，读取近乎零延迟），再触发本批 ds→DNR→us_in。
+         *   代价：录音延迟增加约 20.8µs（一个 48kHz 周期），人耳不可感知。
+         */
+        s_chan_out_word((chanend_t)uc_ssrc_ds_in, (uint32_t)data_in[2]);
+        s_chan_out_word((chanend_t)uc_ssrc_ds_in, (uint32_t)data_in[3]);
+        ds_tick++;
+
+        if (ds_tick >= 4) {
+            ds_tick = 0;
+
+            if (!us_first_batch) {
+                /* 读上一批 us_stereo 已生产的 4 对 192kHz（近乎无延迟）*/
+                us_cache[0][0] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[0][1] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[1][0] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[1][1] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[2][0] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[2][1] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[3][0] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache[3][1] = (int)chan_in_word((chanend_t)uc_ssrc_us_out);
+                us_cache_idx = 0;
+            }
+
+            /* 处理当前批：ds→DNR→us_in，结果在下一个 tick4 读取 */
+            mic_48k[0] = (int)s_chan_in_word((chanend_t)uc_ssrc_ds_out);
+            mic_48k[1] = (int)s_chan_in_word((chanend_t)uc_ssrc_ds_out);
+            dnr_exchange_buffer(mic_48k);
+            s_chan_out_word((chanend_t)uc_ssrc_us_in, (uint32_t)mic_48k[0]);
+            s_chan_out_word((chanend_t)uc_ssrc_us_in, (uint32_t)mic_48k[1]);
+
+            us_first_batch = 0;
         }
 
-        chan_out_buf_word (c_data , play_output, I2S_CHANS_DAC);
-#if DNR_ENABLE == 1
-        chan_in_buf_word (c_data , mic_input, 2) ;
-        chan_out_buf_word (c_data , mic_output, I2S_CHANS_ADC);
-#endif
-        write_to_ring_buffer(0, play_input[0]);
-        write_to_ring_buffer(1, play_input[1]);
-        play_output[0] = read_from_ring_buffer(2);
-        play_output[1] = read_from_ring_buffer(3);
-#if DNR_ENABLE == 1
-        dnr_exchange_buffer(mic_input);
-        mic_output[0] = mic_input[0];
-        mic_output[1] = mic_input[1];
+        if (us_cache_idx < 4) {
+            data_out[2] = us_cache[us_cache_idx][0];
+            data_out[3] = us_cache[us_cache_idx][1];
+            us_cache_idx++;
+        } else {
+            data_out[2] = 0;
+            data_out[3] = 0;
+        }
+  #else
+        dnr_exchange_buffer((int32_t *)&data_in[2]);
+        data_out[2] = data_in[2];
+        data_out[3] = data_in[3];
+  #endif
+#else
+        data_out[2] = data_in[2];
+        data_out[3] = data_in[3];
 #endif
     }
 }

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_flash_interface.c

@@ -8,15 +8,12 @@
 #include <xclib.h>
 #include <stdio.h>
 #include "debug_print.h"
+#include "dfu_upgrade.h"
 
 #include "xua.h"
 
 #if HID_DFU_EN
 
-#ifndef DFU_FLASH_MAX_UPGRADE_SIZE
-#define DFU_FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
-#endif
-
 #define DFU_FLASH_ERROR()
 
 static int dfu_flash_device_open = 0;

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.c

@@ -95,7 +95,7 @@ unsigned char handle_firmware_upgrade_start(uint8_t data[], uint16_t len)
 
     debug_printf("g_first_page_write_executed: %d\n", g_first_page_write_executed);
 
-    if (firmware_size == 0 || firmware_size > FLASH_MAX_UPGRADE_SIZE) {
+    if (firmware_size == 0 || firmware_size > DFU_FLASH_MAX_UPGRADE_SIZE) {
         debug_printf("Firmware upgrade error: invalid size %lu\n", firmware_size);
         response[0] = STATUS_SIZE_INVALID;
         send_firmware_upgrade_response(FIRMWARE_UPGRADE_START, response, 1);

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.h

@@ -44,7 +44,11 @@ typedef enum {
 // 数据包格式：同步头(1) + 命令码(1) + 块序号(2) + 数据长度(1) + 数据(N) + Checksum(1)
 // 所以最大数据长度 = 63 - 5(头部) - 1(Checksum) = 57字节
 #define MAX_DATA_BLOCK_SIZE         57      // 最大数据块大小（63字节HID数据包 - 5字节头部 - 1字节Checksum）
-#define FLASH_MAX_UPGRADE_SIZE      (2000 * 1024)  // 最大固件大小1400KB
+
+#ifndef DFU_FLASH_MAX_UPGRADE_SIZE
+#define DFU_FLASH_MAX_UPGRADE_SIZE (3000 * 1024)
+#endif
+
 
 // 页缓冲区结构
 typedef struct {

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp.c

@@ -53,7 +53,7 @@ static volatile int g_runtime_angle_written = 0;
 // 通过该标志判断EX3D是否已完成初始化，若已完成则在收到0xF9时立即应用角度。
 static volatile int g_ex3d_init_done = 0;
 // audio_ex3d_init会覆盖Ex3dExpandGain为库默认值；用此变量保存0xFD boot sync收到的值
-static volatile int32_t g_boot_footstep_expand_gain_value = 12;
+static volatile int32_t g_boot_footstep_expand_gain_value = 15;  // 改动原因：脚步增强默认15dB（2档：0/15）
 static volatile int32_t g_boot_lmt_threshold_value = -5;
 static volatile uint32_t g_boot_angle_values[8] = {315, 45, 0, 0, 225, 135, 270, 90};
 
@@ -299,6 +299,7 @@ void UserBufferManagement(unsigned sampsFromUsbToAudio[], unsigned sampsFromAudi
 #elif DNR_ENABLE == 1
     buffer_exchange(uc_eq_data, sampsFromUsbToAudio, sampsFromAudioToUsb, ubm_sample_freq);
 #endif
+
     GET_SHARED_GLOBAL(is_monitor, g_monitor_switch_t1);
     if (is_monitor) {
         sampsFromUsbToAudio[0] += (unsigned)((((int)sampsFromAudioToUsb[0]) >> 1));
@@ -1175,7 +1176,8 @@ void ex3d_task(){
     }
 
     // audio_ex3d_init内部会将Ex3dExpandGain重置为库默认值(6)，这里始终用保存值恢复
-    Ex3dExpandGain = g_boot_footstep_expand_gain_loaded ? g_boot_footstep_expand_gain_value : 12;
+    // 改动原因：无flash/boot同步时脚步增强默认15dB（原12dB为旧3档高亮档）
+    Ex3dExpandGain = g_boot_footstep_expand_gain_loaded ? g_boot_footstep_expand_gain_value : 15;
     Ex3dLimiterThreshold = g_boot_lmt_threshold_loaded ? g_boot_lmt_threshold_value : -15;
 
     EX3DAudio_SetOnGain(Ex3dOnGain);

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dsp_core0.xc

@@ -1,5 +1,5 @@
 #if DEBUG_MEMORY_LOG_ENABLED
-#define DEBUG_PRINT_ENABLE 1
+#define DEBUG_PRINT_ENABLE 0
 #else
 #define DEBUG_PRINT_ENABLE 0
 #endif

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/eq.c

@@ -15,7 +15,12 @@ extern void device_reboot(void);
 
 // 常量定义
 #define EQ_DISABLED_MODE 10  // 禁用EQ的模式编号
+
+#if DEBUG_MEMORY_LOG_ENABLED
+unsigned g_log_switch = 1;
+#else
 unsigned g_log_switch = 0;
+#endif
 
 #include "xmath/filter.h"
 #include "eq.h"
@@ -631,12 +636,12 @@ unsigned char process_send_params(uint8_t data[], uint16_t len) {
     }
 
     // 处理设置麦克风增益命令 (0x82) - SET_MIC_VOLUME
-    // 范围: 0-37 (0=mute, 1-37=0dB~36dB, 1dB/步; register=38的+1.5dB仅firmware内部)
+    // 改动原因：麦克风协议升级为49级（0~48），最大增益由36dB收敛到24dB（0.5dB/级）。
     if (data[1] == 0x82) {
         uint8_t mic_level = data[2];
 
-        // 参数验证: 0-37
-        if (mic_level > 37) {
+        // 参数验证: 0-48
+        if (mic_level > 48) {
             return false;
         }
 
@@ -705,13 +710,13 @@ unsigned char process_send_params(uint8_t data[], uint16_t len) {
     }
 
     // 处理设置音量命令 (0x93) - SET_VOLUME
-    // 范围: 0-15 (0=静音, 1-15=-28dB~0dB, 2dB/步)
+    // 改动原因：DAC音量协议与旋钮统一扩展到49级（0~48），与SY102dac对应表一致。
     if (data[1] == 0x93) {
         // 获取音量级别
         uint8_t volume_level = data[2];
 
-        // 参数验证: 0-29 (0=mute, 1-29=-28dB~0dB, 1dB/步)
-        if (volume_level > 29) {
+        // 参数验证: 0-48
+        if (volume_level > 48) {
             return false;
         }
 

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/eq_designer_new.py

@@ -615,9 +615,10 @@ class EQDesigner(QMainWindow):
         volume_control_layout = QHBoxLayout()
         self.volume_label = QLabel("监听音量 (0x93/0x94):")
         self.volume_spin = QSpinBox()
-        self.volume_spin.setRange(0, 29)
-        self.volume_spin.setValue(29)
-        self.volume_spin.setSuffix(" (0=静音, 29=0dB)")
+        # 改动原因：与固件0x93协议保持一致，DAC监听音量改为49级(0~48)。
+        self.volume_spin.setRange(0, 48)
+        self.volume_spin.setValue(48)
+        self.volume_spin.setSuffix(" (0=静音, 48=0dB)")
         volume_control_layout.addWidget(self.volume_label)
         volume_control_layout.addWidget(self.volume_spin)
         volume_layout.addRow(volume_control_layout)
@@ -636,9 +637,10 @@ class EQDesigner(QMainWindow):
         mic_vol_control_layout = QHBoxLayout()
         self.mic_volume_label = QLabel("麦克风增益 (0x82/0x83):")
         self.mic_volume_spin = QSpinBox()
-        self.mic_volume_spin.setRange(0, 37)
-        self.mic_volume_spin.setValue(37)
-        self.mic_volume_spin.setSuffix(" (0=静音, 1=0dB, 37=36dB)")
+        # 改动原因：与固件0x82协议保持一致，MIC增益改为49级(0~48)，2级=1dB，最大24dB。
+        self.mic_volume_spin.setRange(0, 48)
+        self.mic_volume_spin.setValue(48)
+        self.mic_volume_spin.setSuffix(" (0=静音, 2级=1dB, 48=24dB)")
         mic_vol_control_layout.addWidget(self.mic_volume_label)
         mic_vol_control_layout.addWidget(self.mic_volume_spin)
         volume_layout.addRow(mic_vol_control_layout)
@@ -2298,7 +2300,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
                 log_message(LOG_LEVEL_ERROR, f"设置并保存EQ模式时出错: {str(e)}", self.log_level)
 
     def on_set_volume(self):
-        """设置监听音量级别（发送0x93命令，范围0-29，0=静音，1=-28dB，29=0dB，1dB/步）"""
+        """设置监听音量级别（发送0x93命令，范围0-48，按SY102dac对应表映射）"""
         if self.device_combo.currentData() is None:
             log_message(LOG_LEVEL_ERROR, "请先选择设备", self.log_level)
             return
@@ -2309,7 +2311,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
             self,
             "确认设置监听音量",
             f"将要设置监听音量级别为: {volume_level}\n\n"
-            f"音量范围: 0-29 (0=静音, 1=-28dB, ..., 29=0dB, 1dB/步)\n\n"
+            f"音量范围: 0-48 (0=静音, 1=-66dB, ..., 47=-0.5dB, 48=0dB；按SY102dac对应表)\n\n"
             f"是否继续？",
             QMessageBox.Yes | QMessageBox.No,
             QMessageBox.No
@@ -2325,7 +2327,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
                 data = bytearray(63)
                 data[0] = 0x77
                 data[1] = 0x93  # SET_VOLUME
-                data[2] = volume_level  # 0-29
+                data[2] = volume_level  # 0-48
 
                 log_message(LOG_LEVEL_INFO, f"正在设置监听音量级别为 {volume_level}...", self.log_level)
                 h.write([0x01] + list(data))
@@ -2367,7 +2369,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
                     QMessageBox.information(
                         self, "监听音量级别",
                         f"当前监听音量级别: {volume_level}\n\n"
-                        f"音量范围: 0-29 (0=静音, 1=-28dB, ..., 29=0dB, 1dB/步)"
+                        f"音量范围: 0-48 (0=静音, 1=-66dB, ..., 47=-0.5dB, 48=0dB；按SY102dac对应表)"
                     )
                 else:
                     log_message(LOG_LEVEL_ERROR, f"无效的0x94响应同步头: 0x{reply[1]:02x} 0x{reply[2]:02x}", self.log_level)
@@ -2380,7 +2382,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
             log_message(LOG_LEVEL_ERROR, f"读取监听音量时出错: {str(e)}", self.log_level)
 
     def on_set_mic_volume(self):
-        """设置麦克风增益级别（发送0x82命令，范围0-37，0=静音，1=0dB，37=36dB，1dB/步）"""
+        """设置麦克风增益级别（发送0x82命令，范围0-48，2级=1dB，48=24dB）"""
         if self.device_combo.currentData() is None:
             log_message(LOG_LEVEL_ERROR, "请先选择设备", self.log_level)
             return
@@ -2391,7 +2393,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
             self,
             "确认设置麦克风增益",
             f"将要设置麦克风增益级别为: {mic_level}\n\n"
-            f"增益范围: 0-37 (0=静音, 1=0dB, ..., 37=36dB, 1dB/步)\n\n"
+            f"增益范围: 0-48 (0=静音, 2级=1dB, ..., 48=24dB)\n\n"
             f"是否继续？",
             QMessageBox.Yes | QMessageBox.No,
             QMessageBox.No
@@ -2407,7 +2409,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
                 data = bytearray(63)
                 data[0] = 0x77
                 data[1] = 0x82  # SET_MIC_VOLUME
-                data[2] = mic_level  # 0-37
+                data[2] = mic_level  # 0-48
 
                 log_message(LOG_LEVEL_INFO, f"正在设置麦克风增益级别为 {mic_level}...", self.log_level)
                 h.write([0x01] + list(data))
@@ -2449,7 +2451,7 @@ eq_mode_data_t sEQ_data_{int(fs)}HZ[NUM_EQ_MODES][NUM_EQ_CHANS] = {{
                     QMessageBox.information(
                         self, "麦克风增益级别",
                         f"当前麦克风增益级别: {mic_level}\n\n"
-                        f"增益范围: 0-37 (0=静音, 1=0dB, ..., 37=36dB, 1dB/步)"
+                        f"增益范围: 0-48 (0=静音, 2级=1dB, ..., 48=24dB)"
                     )
                 else:
                     log_message(LOG_LEVEL_ERROR, f"无效的0x83响应同步头: 0x{reply[1]:02x} 0x{reply[2]:02x}", self.log_level)

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/eq_hid_protocol.md

@@ -8,8 +8,8 @@
 ### 1.2 支持的指令列表
 | 指令码 | 命令名称 | 功能 | 方向 | 描述 |
 |--------|----------|------|------|------|
-| 0x82 | SET_MIC_VOLUME | 设置麦克风增益级别 | 主机→设备 | 设置麦克风PGA增益（0=静音, 1-37=0dB~36dB, 1dB/步） |
-| 0x83 | GET_MIC_VOLUME | 获取麦克风增益级别 | 主机→设备 | 读取当前麦克风PGA增益级别（0=静音, 1-37=0dB~36dB） |
+| 0x82 | SET_MIC_VOLUME | 设置麦克风增益级别 | 主机→设备 | 设置麦克风增益（0=静音, 1-48=0~24dB, 2级=1dB） |
+| 0x83 | GET_MIC_VOLUME | 获取麦克风增益级别 | 主机→设备 | 读取当前麦克风增益级别（0=静音, 1-48=0~24dB, 2级=1dB） |
 | 0x84 | FACTORY_RESET | 恢复出厂默认设置 | 主机→设备 | 删除Flash中所有已保存参数，设备重启后自动恢复出厂默认值 |
 | 0x85 | SET_AI_NOISE_STRENGTH | 设置AI降噪强度 | 主机→设备 | 设置AI降噪强度（0=关闭，2-100偶数=强度级别，步进2；100对应最强-200dB） |
 | 0x86 | GET_AI_NOISE_STRENGTH | 获取AI降噪强度 | 主机→设备 | 读取当前AI降噪强度；强度变化（含按键切换、开机初始值）时设备主动上报 |
@@ -24,8 +24,8 @@
 | 0x90 | RESET_EQ_PARAMS | 复位EQ参数 | 主机→设备 | 删除Flash中的EQ参数并恢复头文件预设参数 |
 | 0x91 | GET_EQ_MODE_COUNT | 获取EQ模式总数 | 主机→设备 | 返回预定义加用户模式的总数（不包含禁用模式） |
 | 0x92 | SET_AND_SAVE_EQ_MODE | 设置并保存EQ模式 | 主机→设备 | 设置当前EQ模式(0-9)并保存到Flash，开机时自动恢复 |
-| 0x93 | SET_VOLUME | 设置监听音量级别 | 主机→设备 | 设置设备监听音量级别（0=静音, 1-29=-28dB~0dB, 1dB/步） |
-| 0x94 | GET_VOLUME | 获取监听音量级别 | 主机→设备 | 读取设备当前监听音量级别（0=静音, 1-29=-28dB~0dB, 1dB/步） |
+| 0x93 | SET_VOLUME | 设置监听音量级别 | 主机→设备 | 设置设备监听音量级别（0=静音, 1-48按SY102dac对应表映射到-66dB~0dB） |
+| 0x94 | GET_VOLUME | 获取监听音量级别 | 主机→设备 | 读取设备当前监听音量级别（0=静音, 1-48按SY102dac对应表映射） |
 | 0x9D | SET_EQ_ENABLE | 设置EQ使能开关 | 主机→设备 | 设置EQ使能开关（ON/OFF），禁用时保存当前模式，启用时恢复之前模式 |
 | 0x9E | GET_EQ_ENABLE | 获取EQ使能开关 | 主机→设备 | 读取EQ使能开关状态（ON/OFF） |
 | 0x9F | GET_SAMPLE_FORMAT | 获取采样率和格式 | 主机→设备 | 读取当前采样率、DSD模式和DAC采样分辨率 |
@@ -59,20 +59,20 @@
 ---------|------|------|------
 0        | 1    | 0x77 | 同步头1
 1        | 1    | 0x82 | 命令码
-2        | 1    | uint8 | 增益级别 (0=静音, 1-37=0dB~36dB, 1dB/步)
+2        | 1    | uint8 | 增益级别 (0=静音, 1-48=0~24dB, 2级=1dB)
 3-62     | 60   | 0x00 | 保留字节
 ```
 
 **参数说明**:
-- **增益级别范围：** 0-37（共38级）
+- **增益级别范围：** 0-48（共49级）
 - **对应硬件**：NAU88C22 ADC PGA增益寄存器（reg 0x007E）+ 输出放大器（reg 0x0035）
   - 0：静音（mute，同时清零 reg 0x007E 和 0x0035）
-  - 1：0dB（最小有效增益）
+  - 1：约0.5dB（按2级=1dB映射）
   - 2：1dB
-  - ...（1dB/步）
-  - 37：36dB（最大HID可设置增益）
-- **注意**：内部寄存器值38（约+1.5dB数字增益）为firmware保留，HID不可设置
-- >37 为无效值，固件将拒绝设置
+  - ...（2级=1dB）
+  - 47：约23.5dB
+  - 48：24dB（最大HID可设置增益）
+- >48 为无效值，固件将拒绝设置
 
 **设备端处理**:
 - 设置后立即应用到ADC PGA硬件
@@ -102,12 +102,12 @@
 0        | 1    | 0x01 | Report ID
 1        | 1    | 0x77 | 同步头1
 2        | 1    | 0x83 | 同步头2
-3        | 1    | uint8 | 当前增益级别 (0=静音, 1-37=0dB~36dB)
+3        | 1    | uint8 | 当前增益级别 (0=静音, 1-48=0~24dB, 2级=1dB)
 4-62     | 59   | 0x00 | 保留字节
 ```
 
 **主动上报说明**:
-- 编码器旋转导致增益变化时，设备主动向主机上报当前增益（最大上报37，内部38时上报37）
+- 编码器旋转导致增益变化时，设备主动向主机上报当前增益（范围0~48）
 - HID SET_MIC_VOLUME（0x82）命令成功执行后，设备也主动上报新增益
 
 ### 2.0c 0x84 - FACTORY_RESET (恢复出厂默认设置)
@@ -127,8 +127,8 @@
 |------|-----------|------|
 | AI7.1音效模式 | 3 (AI7.1开启) | 音效模式 0=无音效, 1=音乐, 2=游戏, 3=AI7.1 |
 | 脚步增强 | 12dB (全亮, 状态2) | LED全亮, 扩展增益12dB |
-| 麦克风音量 | 22 (21dB) | PGA寄存器值22 = 21dB |
-| 监听音量 | 15 (-14dB) | DAC level 15 = 0dB - 14 = -14dB |
+| 麦克风音量 | 44 (约22dB) | 49级中的44级，按2级=1dB映射 |
+| 监听音量 | 30 (-14dB) | 49级中的30级，按SY102dac对应表映射 |
 | EQ参数 | 头文件预设 | 删除所有用户EQ参数，恢复固件内置预设 |
 | AI降噪 | 开启 | 每次上电默认开启（不保存到Flash） |
 | 耳返开关 | 0 (关闭) | ADC→耳机监听通路默认关闭 |
@@ -532,25 +532,27 @@
 ---------|------|------|------
 0        | 1    | 0x77 | 同步头1
 1        | 1    | 0x93 | 命令码
-2        | 1    | uint8 | 音量级别 (0-29: 0=静音, 1=-28dB, ..., 29=0dB)
+2        | 1    | uint8 | 音量级别 (0-48: 0=静音, 1=-66dB, ..., 48=0dB；按SY102dac对应表)
 3-62     | 60   | 0x00 | 保留字节
 ```
 
 **参数说明**:
-- **音量级别范围：** 0-29（共30级）
+- **音量级别范围：** 0-48（共49级）
 - **说明：** 控制设备监听输出（DAC/耳机）音量级别
   - 0: 静音（mute，DAC完全静音）
-  - 1: -28dB（最小有效音量）
-  - 2: -27dB
-  - ...（每级1dB步进）
-  - 29: 0dB（最大音量）
-- **对应硬件**：NAU88C22 DAC音量寄存器（reg 0x0034），30级精度（1dB/步）
+  - 1: -66dB（最小有效音量）
+  - 2: -64dB
+  - ...（按 `SY102dac对应表.csv` 的非线性步进）
+  - 46: -1dB
+  - 47: -0.5dB
+  - 48: 0dB（最大音量）
+- **对应硬件**：NAU88C22 DAC音量寄存器（reg 0x0034），49级查表映射
 
 **设备端处理**:
 - 设置后立即应用到DAC硬件
 - 同步更新前面板LED（D系列15个LED，反映当前音量级别，每2级对应1个LED）
 - 保存到Flash（dac_vol路径），断电重启后自动恢复
-- 如果参数超出范围（>29），固件将拒绝设置
+- 如果参数超出范围（>48），固件将拒绝设置
 
 **返回值**:
 无直接返回值。如需确认音量是否设置成功，请使用GET_VOLUME命令读取当前音量。设备端音量变化（含编码器旋转引起的变化）会主动通过0x94格式上报。
@@ -574,7 +576,7 @@
 0        | 1    | 0x01 | Report ID
 1        | 1    | 0x77 | 同步头1
 2        | 1    | 0x94 | 同步头2
-3        | 1    | uint8 | 当前音量级别 (0-29: 0=静音, 1-29=-28dB~0dB, 1dB/步)
+3        | 1    | uint8 | 当前音量级别 (0-48: 0=静音, 1-48按SY102dac对应表映射到-66dB~0dB)
 4-62     | 59   | 0x00 | 保留字节
 ```
 

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/led_control.c

@@ -87,82 +87,112 @@ const uint8_t led_d_physical_map[15] = {
     22,  // LED_D15 -> OUT22  
 };
 
-const uint8_t mic_gain_to_led[39] = {
-    0,  // [-1] 增益-1: 0个LED，这个设计未启用
-    1,  // [0] 增益0: 0个LED
-    1,  // [1] 增益1: 0个LED
-    1,  // [2] 增益2: 0个LED
-    1,  // [3] 增益3: 1个LED
-    2,  // [4] 增益4: 1个LED
-    2,  // [5] 增益5: 1个LED
-    2,  // [6] 增益6: 2个LED
-    2,  // [7] 增益7: 2个LED
-    3,  // [8] 增益8: 2个LED
-    3,  // [9] 增益9: 3个LED
-    3,  // [10] 增益10: 3个LED
-    3,  // [11] 增益11: 3个LED
-    4,  // [12] 增益12: 4个LED
-    4,  // [13] 增益13: 4个LED
-    4,  // [14] 增益14: 4个LED
-    5,  // [15] 增益15: 5个LED
-    5,  // [16] 增益16: 5个LED
-    6,  // [17] 增益17: 6个LED
-    6,  // [18] 增益18: 6个LED
-    7,  // [19] 增益19: 7个LED
-    7,  // [20] 增益20: 7个LED
-    8,  // [21] 增益21: 8个LED
-    8,  // [22] 增益22: 8个LED
-    9,  // [23] 增益23: 9个LED
-    9,  // [24] 增益24: 9个LED
-    10, // [25] 增益25: 10个LED
-    10, // [26] 增益26: 10个LED
-    11, // [27] 增益27: 11个LED
-    11, // [28] 增益28: 11个LED
-    12, // [29] 增益29: 12个LED
-    12, // [30] 增益30: 12个LED
-    13, // [31] 增益31: 13个LED
-    13, // [32] 增益32: 13个LED
-    14, // [33] 增益33: 14个LED
-    14, // [34] 增益34: 14个LED
-    15, // [35] 增益35: 15个LED
-    15, // [36] 增益36: 15个LED
-    15  // [37] 增益36+1.5 digitial gain: 15个LED
+// 改动原因：按 SY102mic音量对应表.csv，将麦克风音量等级改为 49 级(0~48)，最大增益改为 24dB，
+// LED档位按表中“旋钮刻度49级 + LED灯15个”的分段阈值重建。
+const uint8_t mic_gain_to_led[49] = {
+    0,  // [0]  mute
+    1,  // [1]
+    1,  // [2]
+    1,  // [3]
+    2,  // [4]
+    2,  // [5]
+    2,  // [6]
+    3,  // [7]
+    3,  // [8]
+    3,  // [9]
+    4,  // [10]
+    4,  // [11]
+    4,  // [12]
+    5,  // [13]
+    5,  // [14]
+    5,  // [15]
+    6,  // [16]
+    6,  // [17]
+    6,  // [18]
+    7,  // [19]
+    7,  // [20]
+    7,  // [21]
+    8,  // [22]
+    8,  // [23]
+    8,  // [24]
+    9,  // [25]
+    9,  // [26]
+    9,  // [27]
+    10, // [28]
+    10, // [29]
+    10, // [30]
+    11, // [31]
+    11, // [32]
+    11, // [33]
+    12, // [34]
+    12, // [35]
+    12, // [36]
+    13, // [37]
+    13, // [38]
+    13, // [39]
+    13, // [40]
+    14, // [41]
+    14, // [42]
+    14, // [43]
+    14, // [44]
+    15, // [45]
+    15, // [46]
+    15, // [47]
+    15  // [48] max 24dB
 };
 
-// DAC监听音量增益到LED数量的映射表
-// 索引 0 = 静音 (0个LED, reg 0x0034=0x0000)
-// 索引 1~29: -28dB ~ 0dB，1dB/步，每2个dB对应1个LED（最后1dB独占15号LED）
-const uint8_t dac_gain_to_led[30] = {
-    0,  // [0]  mute:  0 LEDs
-    1,  // [1]  -28dB: 1 LED
-    1,  // [2]  -27dB: 1 LED
-    2,  // [3]  -26dB: 2 LEDs
-    2,  // [4]  -25dB: 2 LEDs
-    3,  // [5]  -24dB: 3 LEDs
-    3,  // [6]  -23dB: 3 LEDs
-    4,  // [7]  -22dB: 4 LEDs
-    4,  // [8]  -21dB: 4 LEDs
-    5,  // [9]  -20dB: 5 LEDs
-    5,  // [10] -19dB: 5 LEDs
-    6,  // [11] -18dB: 6 LEDs
-    6,  // [12] -17dB: 6 LEDs
-    7,  // [13] -16dB: 7 LEDs
-    7,  // [14] -15dB: 7 LEDs
-    8,  // [15] -14dB: 8 LEDs
-    8,  // [16] -13dB: 8 LEDs
-    9,  // [17] -12dB: 9 LEDs
-    9,  // [18] -11dB: 9 LEDs
-    10, // [19] -10dB: 10 LEDs
-    10, // [20]  -9dB: 10 LEDs
-    11, // [21]  -8dB: 11 LEDs
-    11, // [22]  -7dB: 11 LEDs
-    12, // [23]  -6dB: 12 LEDs
-    12, // [24]  -5dB: 12 LEDs
-    13, // [25]  -4dB: 13 LEDs
-    13, // [26]  -3dB: 13 LEDs
-    14, // [27]  -2dB: 14 LEDs
-    14, // [28]  -1dB: 14 LEDs
-    15, // [29]   0dB: 15 LEDs
+// 改动原因：按 SY102dac对应表.csv，将DAC音量等级改为 49 级(0~48)，
+// LED分段阈值按“旋钮48格 + 15灯”映射重建，确保HID 0x93新范围显示一致。
+const uint8_t dac_gain_to_led[49] = {
+    0,  // [0]  mute
+    1,  // [1]
+    1,  // [2]
+    1,  // [3]
+    2,  // [4]
+    2,  // [5]
+    2,  // [6]
+    3,  // [7]
+    3,  // [8]
+    3,  // [9]
+    4,  // [10]
+    4,  // [11]
+    4,  // [12]
+    5,  // [13]
+    5,  // [14]
+    5,  // [15]
+    6,  // [16]
+    6,  // [17]
+    6,  // [18]
+    7,  // [19]
+    7,  // [20]
+    7,  // [21]
+    8,  // [22]
+    8,  // [23]
+    8,  // [24]
+    9,  // [25]
+    9,  // [26]
+    9,  // [27]
+    10, // [28]
+    10, // [29]
+    10, // [30]
+    11, // [31]
+    11, // [32]
+    11, // [33]
+    12, // [34]
+    12, // [35]
+    12, // [36]
+    13, // [37]
+    13, // [38]
+    13, // [39]
+    13, // [40]
+    14, // [41]
+    14, // [42]
+    14, // [43]
+    14, // [44]
+    15, // [45]
+    15, // [46]
+    15, // [47]
+    15, // [48]
 };
 
 /*=========================================================================

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/led_control.h

@@ -65,8 +65,10 @@ typedef struct {
 extern const uint8_t led_l_physical_map[15];
 extern const uint8_t led_d_physical_map[15];
 
-extern const uint8_t mic_gain_to_led[39];
-extern const uint8_t dac_gain_to_led[30];
+// 改动原因：麦克风音量协议从旧版38级(0~37)扩展为49级(0~48)，LED映射表长度同步扩展。
+extern const uint8_t mic_gain_to_led[49];
+// 改动原因：按 SY102dac对应表.csv，DAC音量协议从30级(0~29)扩展为49级(0~48)，LED映射表长度同步扩展。
+extern const uint8_t dac_gain_to_led[49];
 
 /*=========================================================================
     基础控制API

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/lfs_services.c

@@ -22,7 +22,7 @@ swlock_t flash_lock = SWLOCK_INITIAL_VALUE;
 static rtos_qspi_flash_t qspi_flash_ctx_s;
 #define FLASH_CLKBLK XS1_CLKBLK_3
 #ifndef FS_BASE_ADDR
-#define FS_BASE_ADDR (2500 * 1024)
+#define FS_BASE_ADDR (3500 * 1024)
 #endif
 #define SECTOR_SIZE  4096
 rtos_qspi_flash_t *qspi_flash_ctx = &qspi_flash_ctx_s;

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/main.xc

@@ -2,6 +2,16 @@
 // This Software is subject to the terms of the XMOS Public Licence: Version 1.
 
 #include "xua.h"                          /* Device specific defines */
+
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+#include "ssrc_rec_core.h"
+/* 改动原因：3 streaming + 1 普通 chan；us 192kHz 走普通 chan（跨 tile 内存不共享） */
+extern uint32_t uc_ssrc_ds_in;
+extern uint32_t uc_ssrc_ds_out;
+extern uint32_t uc_ssrc_us_in;
+extern uint32_t uc_ssrc_us_out;
+#endif
+
 #ifdef EXCLUDE_USB_AUDIO_MAIN
 
 /**
@@ -540,6 +550,14 @@ int main()
 
     USER_MAIN_DECLARATIONS
 
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+    /* 改动原因：streaming chan 有 tile 配额上限；us 192kHz 用普通 chan 传 8 word/块 */
+    streaming chan c_ssrc_ds_in;
+    streaming chan c_ssrc_ds_out;
+    streaming chan c_ssrc_us_in;
+    chan c_ssrc_us_out;
+#endif
+
     chan c_dsp_to_ex3d[DSP_WORKER_COUNT];
     chan cc_mic_level;
     chan c_audiohw;
@@ -582,6 +600,11 @@ int main()
           }
         }
         on tile[1]: mute_handler(c_mic_det);
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+        on tile[1] : ds_rec_core(c_ssrc_ds_in, c_ssrc_ds_out);
+        on tile[1] : us_rec_core(c_ssrc_us_in);
+        on tile[1] : us_rec_output_core(c_ssrc_us_out);
+#endif
 
         on tile[0] : {
           par {
@@ -611,7 +634,17 @@ int main()
             dsp_core0();
           }
         }
-        on tile[0] : { dsp_main(c_eq_data); }
+        on tile[0] : {
+#if F1_MUSIC_UAC2 == 1 && DNR_ENABLE == 1
+            unsafe {
+                uc_ssrc_ds_in   = (uint32_t)(unsigned)(streaming chanend)c_ssrc_ds_in;
+                uc_ssrc_ds_out  = (uint32_t)(unsigned)(streaming chanend)c_ssrc_ds_out;
+                uc_ssrc_us_in   = (uint32_t)(unsigned)(streaming chanend)c_ssrc_us_in;
+                uc_ssrc_us_out  = (uint32_t)(unsigned)(chanend)c_ssrc_us_out;
+            }
+#endif
+            dsp_main(c_eq_data);
+        }
 #endif
 
 #if DNR_ENABLE == 1

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ds_stereo.S

@@ -0,0 +1,187 @@
+#define FUNCTION_NAME ds_stereo
+
+/*
+void ds_stereo(
+    int32_t final_shr, 
+    int32_t * coefs, 
+    int32_t * data, 
+    chanend_t c_in,
+    chanend_t c_out,
+    int32_t num_phase);
+*/
+
+    #define NSTACKWORDS 32
+
+    #define S_LEFT 0
+    #define S_RIGHT 1
+    #define S_LOOP_COUNT 2
+    #define S_COEF_BASE_POINTER 3
+
+    .cc_top FUNCTION_NAME.function
+    .type   FUNCTION_NAME,@function
+
+    .issue_mode dual
+    .align 4
+#define ONE 0x40000000
+zeros:
+    .word 0, 0, 0, 0, 0, 0, 0, 0
+left_chan:
+    .word 0, 0, 0, 0, ONE, ONE, ONE, ONE
+right_chan:
+    .word ONE, ONE, ONE, ONE, 0, 0, 0, 0
+    .align 16
+    .globl FUNCTION_NAME
+.globl FUNCTION_NAME.nstackwords
+.set   FUNCTION_NAME.nstackwords, 32
+FUNCTION_NAME:
+    { dualentsp NSTACKWORDS;}
+
+    stw r4, sp[20]
+    stw r5, sp[21]
+    stw r6, sp[22]
+    stw r7, sp[23]
+    stw r8, sp[24]
+    stw r9, sp[25]
+    stw r10, sp[26]
+
+    ldw r4, sp[NSTACKWORDS+1]
+    stw r4, sp[27]
+
+
+    //{mov r0, r0; mov r1, r1}
+    //{mov r2, r2; mov r3, r3}
+
+    #define CHANNELS 2
+    #define MACCRS_PER_PHASE 4
+    #define BYTES_PER_WORD 4
+    #define WORDS_PER_VECTOR 8
+    #define BYTES_PER_VECTOR (WORDS_PER_VECTOR*BYTES_PER_WORD)
+    
+    ldc r10, (BYTES_PER_VECTOR+BYTES_PER_WORD)
+    ldc r9, BYTES_PER_VECTOR
+    ldc r8, (2*MACCRS_PER_PHASE-1)*BYTES_PER_VECTOR - 4 + (BYTES_PER_VECTOR+BYTES_PER_WORD) + 4
+    ldc r7, MACCRS_PER_PHASE*BYTES_PER_VECTOR
+    ldc r6, ((1<<(BYTES_PER_WORD*CHANNELS))-1)
+
+    //load number of phases - 1 to r11
+    ldw r11, sp[NSTACKWORDS+2]
+    sub r11, r11, 1
+    // jump to passthrough loop if num of phases is 1
+    bf r11, passthrough_loop
+    std r1, r11, sp[1]
+    //store the final_shr for the VLSAT 
+    std r0, r0, sp[2]
+    std r0, r0, sp[3]
+    std r0, r0, sp[4]
+    std r0, r0, sp[5]
+
+   
+    ldc r11, (MACCRS_PER_PHASE-1)*BYTES_PER_VECTOR - 4 + 4 //the final +4 is for the padding at the origin
+    {add r2, r2, r11; nop }
+
+outer_loop:
+    ldc r11, (MACCRS_PER_PHASE-1)*BYTES_PER_VECTOR
+    {vclrdr ; add r11, r2, 0}         //clear accu and reset data pointer
+    ldd r1, r4, sp[1]                 // set loop counter and coef base pointer
+
+phase_loop:
+
+    //{nop; nop}
+    //{nop; nop}
+    //{nop; nop}
+
+    //MACCR 1 left
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    //MACCR 2 left
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    //MACCR 3 left
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    {testct r0, res[r3]; nop}
+    {bt r0, exit; nop}
+    {in r0, res[r3] ; nop }               //fetch data from channel, then get the other one too
+    {stw r0, r11[0] ; in r5, res[r3] }    //store to start of phase
+
+    //MACCR 4 left
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+
+    //rewind r1 by MACCRS_PER_PHASE * BYTES_PER_VECTOR
+    {sub r1, r1, r7; add r11, r11, r8 }
+
+    //now do the right channel
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10} //r10 = 32 + 1
+
+    //MACCR 2 right
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    //MACCR 3 right
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    {stw r5, r11[0] ; nop }                //store to start of phase
+
+    //MACCR 4 right
+    {vldc r11[0]; add r11, r11, BYTES_PER_WORD}
+    {vlmaccr r1[0]; add r1, r1, r9} 
+    {vstc r11[0]; sub r11, r11, r10}
+
+    {nop;       add r11, r11, r8 }             //advance to next phase
+
+    {bt r4, phase_loop; sub r4, r4, 1}
+ 
+    ldaw r11, sp[4]
+    {vlsat r11[0]; nop}  //turn all accumulators into 32 bits
+
+    ldaw r11, sp[12]
+    {vstr r11[0]; nop}
+    {vldc r11[0];ldap r11, right_chan}
+    {vclrdr; nop}
+    {vlmaccr r11[0];ldap r11, left_chan}
+    {vlmaccr r11[0]; ldap r11, zeros}
+
+       
+    {vlsat r11[0]; ldaw r11, sp[0]}
+    vstrpv r11[0], r6
+
+    ldd r11, r4, sp[0]
+    // load c_out from stack to r1
+    ldw r1, sp[27]
+    {out res[r1], r4; nop}
+    {bu outer_loop;out res[r1], r11}
+
+passthrough_loop:
+    {testct r11, res[r3]; nop}
+    {bt r11, exit; nop}
+    {in r11, res[r3]; nop}
+    {out res[r4], r11; nop}
+    {in r11, res[r3]; nop}
+    {bu passthrough_loop; out res[r4], r11}
+
+exit:
+    {inct r0, res[r3]; nop}
+    ldw r4, sp[20]
+    ldw r5, sp[21]
+    ldw r6, sp[22]
+    ldw r7, sp[23]
+    ldw r8, sp[24]
+    ldw r9, sp[25]
+    ldw r10, sp[26]
+    retsp NSTACKWORDS
+
+    .cc_bottom FUNCTION_NAME.function

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ssrc_coefs.h

@@ -0,0 +1,53 @@
+#ifndef _SSRC_COEFS_H_
+#define _SSRC_COEFS_H_
+
+#include <stdint.h>
+
+/* Downsample ratio=4, 48kHz base — 128 coefficients */
+static int32_t ds4_48000_coefs[128] = {
+    4192603,   -2703925,    1667738,    -971500,     525063,    -255689,     105964,       5666,
+  147741797,  -66167732,   40186648,  -26923243,   18716201,  -13134162,    9159092,   -6278295,
+   -8394794,   12071368,  -17195979,   24612481,  -36235752,   57613909, -114155284, 1046129870,
+     -80960,     208765,    -445117,     844122,   -1474686,    2422662,   -3794257,    5724570,
+   11257906,   -7331064,    4577066,   -2707960,    1493638,    -748452,     324772,    -145564,
+  502280711, -186846312,  108570992,  -71571731,   49475933,  -34709734,   24277296,  -16731888,
+  -18415916,   26595074,  -37942809,   54167579,  -78966289,  122300118, -223331678,  840288039,
+    -149225,     407138,    -899861,    1748155,   -3108937,    5178122,   -8198765,   12476764,
+   12476764,   -8198765,    5178122,   -3108937,    1748155,    -899861,     407138,    -149225,
+  840288039, -223331678,  122300118,  -78966289,   54167579,  -37942809,   26595074,  -18415916,
+  -16731888,   24277296,  -34709734,   49475933,  -71571731,  108570992, -186846312,  502280711,
+    -145564,     324772,    -748452,    1493638,   -2707960,    4577066,   -7331064,   11257906,
+    5724570,   -3794257,    2422662,   -1474686,     844122,    -445117,     208765,     -80960,
+ 1046129870, -114155284,   57613909,  -36235752,   24612481,  -17195979,   12071368,   -8394794,
+   -6278295,    9159092,  -13134162,   18716201,  -26923243,   40186648,  -66167732,  147741797,
+       5666,     105964,    -255689,     525063,    -971500,    1667738,   -2703925,    4192603,
+};
+
+/* Upsample ratio=4, 48kHz base — 128 coefficients */
+static int32_t us4_48000_coefs[128] = {
+     -80960,     208765,    -445117,     844122,   -1474686,    2422662,   -3794257,    5724570,
+    -149225,     407138,    -899861,    1748155,   -3108937,    5178122,   -8198765,   12476764,
+    -8394794,   12071368,  -17195979,   24612481,  -36235752,   57613909, -114155284, 1046129870,
+   147741797,  -66167732,   40186648,  -26923243,   18716201,  -13134162,    9159092,   -6278295,
+     4192603,   -2703925,    1667738,    -971500,     525063,    -255689,     105964,       5666,
+    11257906,   -7331064,    4577066,   -2707960,    1493638,    -748452,     324772,    -145564,
+     -145564,     324772,    -748452,    1493638,   -2707960,    4577066,   -7331064,   11257906,
+        5666,     105964,    -255689,     525063,    -971500,    1667738,   -2703925,    4192603,
+    -16731888,   24277296,  -34709734,   49475933,  -71571731,  108570992, -186846312,  502280711,
+     -6278295,    9159092,  -13134162,   18716201,  -26923243,   40186648,  -66167732,  147741797,
+  502280711, -186846312,  108570992,  -71571731,   49475933,  -34709734,   24277296,  -16731888,
+  -18415916,   26595074,  -37942809,   54167579,  -78966289,  122300118, -223331678,  840288039,
+    12476764,   -8198765,    5178122,   -3108937,    1748155,    -899861,     407138,    -149225,
+     5724570,   -3794257,    2422662,   -1474686,     844122,    -445117,     208765,     -80960,
+ 1046129870, -114155284,   57613909,  -36235752,   24612481,  -17195979,   12071368,   -8394794,
+   -6278295,    9159092,  -13134162,   18716201,  -26923243,   40186648,  -66167732,  147741797,
+};
+
+#define SSRC_DS4_48K_FINAL_SHR  2
+#define SSRC_US4_FINAL_SHR      0
+#define SSRC_US4_HISTORY_OFFSET (32*4)
+#define SSRC_US4_NUM_PHASE      4
+#define SSRC_US4_PHASE_SIZE     4
+#define SSRC_RB_SIZE            (2*32*5+32)
+
+#endif

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ssrc_rec_core.h

@@ -0,0 +1,33 @@
+#ifndef _SSRC_REC_CORE_H_
+#define _SSRC_REC_CORE_H_
+
+#if F1_MUSIC_UAC2 == 1
+
+#include <xs1.h>
+#include <platform.h>
+
+/**
+ * Downsample recording core — runs on tile[1]
+ * Uses two streaming channels (ds_stereo.S 需要独立 c_in/c_out，不能别名):
+ *   - c_from_tile0: tile[0]→tile[1] 192kHz stereo input
+ *   - c_to_tile0:   tile[1]→tile[0] 48kHz  stereo output
+ */
+void ds_rec_core(streaming chanend c_from_tile0, streaming chanend c_to_tile0);
+
+/**
+ * Upsample recording core — runs on tile[1]
+ * 改动原因：us_stereo.S 是持续运行函数，只会在控制 token 时返回；
+ * 因此本 core 只负责把 48kHz 输入升采样写入 tile[1] 本地 ring buffer。
+ */
+void us_rec_core(streaming chanend c_us_in);
+
+/**
+ * Upsample output sender — runs on tile[1]
+ * 改动原因：从 us_rec_core 写入的 tile[1] 本地 ring buffer 取 192kHz 数据，
+ * 通过普通 channel 发回 tile[0]，避免等待 us_stereo.S 返回导致死锁。
+ */
+void us_rec_output_core(chanend c_us_out);
+
+#endif
+
+#endif

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ssrc_rec_core.xc

@@ -0,0 +1,128 @@
+#if F1_MUSIC_UAC2 == 1
+
+#include "ssrc_rec_core.h"
+#include <xs1.h>
+#include <platform.h>
+#include <string.h>
+#include "ssrc_coefs.h"
+#include "ssrc_us_share_buf.h"
+
+#ifndef SET_SAMPLE_FREQ
+#define SET_SAMPLE_FREQ 1
+#endif
+
+#ifndef NUM_USB_CHAN_OUT
+#define NUM_USB_CHAN_OUT 2
+#endif
+
+/* Assembly function declarations */
+extern unsigned char ds_stereo(
+    int32_t final_shr,
+    int32_t *coefs,
+    int32_t *data,
+    streaming chanend c_in,
+    streaming chanend c_out,
+    int32_t num_phase);
+
+extern unsigned char us_stereo(
+    int32_t *coefs,
+    int32_t *l_history,
+    int32_t *r_history,
+    streaming chanend c_in,
+    int32_t history_offset,
+    uint32_t ring_buffer_addr,
+    uint32_t tail_addr,
+    int32_t ring_buffer_size,
+    int32_t num_phase,
+    int32_t phase_size,
+    int32_t final_shr);
+
+#pragma unsafe arrays
+void ds_rec_core(streaming chanend c_from_tile0, streaming chanend c_to_tile0)
+{
+    int32_t history[1057];
+    unsigned char control_token;
+
+    memset(history, 0, sizeof(history));
+    set_core_high_priority_on();
+
+    while (1) {
+        control_token = ds_stereo(
+            SSRC_DS4_48K_FINAL_SHR,
+            ds4_48000_coefs,
+            history,
+            c_from_tile0,   /* c_in:  read 192kHz from tile[0] */
+            c_to_tile0,     /* c_out: write 48kHz back to tile[0] */
+            4
+        );
+
+        switch (control_token) {
+        case SET_SAMPLE_FREQ:
+            memset(history, 0, sizeof(history));
+            {
+                unsigned dummy;
+                c_from_tile0 :> dummy;
+            }
+            soutct(c_to_tile0, SET_SAMPLE_FREQ);
+            for (size_t i = 0; i < NUM_USB_CHAN_OUT * 3; ++i) {
+                c_to_tile0 <: 0;
+            }
+            break;
+        default:
+            break;
+        }
+    }
+}
+
+#pragma unsafe arrays
+void us_rec_core(streaming chanend c_us_in)
+{
+    int32_t l_history[64];
+    int32_t r_history[64];
+    unsigned char control_token;
+
+    memset(l_history, 0, sizeof(l_history));
+    memset(r_history, 0, sizeof(r_history));
+    ssrc_us_share_reset();
+
+    while (1) {
+        /* 改动原因：us_stereo.S 是持续运行的生产者，只有收到控制 token 才返回。
+         * 正常音频路径不要在此函数后面发送数据，否则永远执行不到。 */
+        control_token = us_stereo(
+            us4_48000_coefs,
+            l_history, r_history,
+            c_us_in,
+            SSRC_US4_HISTORY_OFFSET,
+            ssrc_us_share_get_buffer_addr(),
+            ssrc_us_share_get_tail_addr(),
+            SSRC_US_RB_WORDS - 32,
+            SSRC_US4_NUM_PHASE,
+            SSRC_US4_PHASE_SIZE,
+            SSRC_US4_FINAL_SHR
+        );
+
+        switch (control_token) {
+        case SET_SAMPLE_FREQ:
+            memset(l_history, 0, sizeof(l_history));
+            memset(r_history, 0, sizeof(r_history));
+            ssrc_us_share_reset();
+            {
+                unsigned dummy;
+                c_us_in :> dummy;
+            }
+            break;
+        default:
+            break;
+        }
+    }
+}
+
+void us_rec_output_core(chanend c_us_out)
+{
+    while (1) {
+        /* 改动原因：C 函数封装 ring buffer，避免 XC 并行共享对象规则报错和 C/XC 指针 ABI 差异。 */
+        c_us_out <: ssrc_us_share_pop_word_blocking();
+    }
+}
+
+#endif

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ssrc_us_share_buf.c

@@ -0,0 +1,43 @@
+#include "ssrc_us_share_buf.h"
+
+/* 改动原因：该 buffer 只在 tile[1] 内被 us_rec_core/us_rec_output_core 使用。
+ * us_stereo.S 通过 tail 地址写入；输出任务通过 head 读取并用普通 chan 发回 tile[0]。 */
+static int32_t ssrc_us_rb[SSRC_US_RB_WORDS];
+static int32_t ssrc_us_head;
+/* 改动原因：us_stereo.S 通过指针写 ssrc_us_tail；编译器无法感知，须加 volatile
+ * 否则 ssrc_us_share_pop_word_blocking 的 while 循环永远读缓存旧值，导致死锁 */
+volatile int32_t ssrc_us_tail;
+
+void ssrc_us_share_reset(void)
+{
+    ssrc_us_head = 0;
+    ssrc_us_tail = 0;
+}
+
+uint32_t ssrc_us_share_get_buffer_addr(void)
+{
+    return (uint32_t)ssrc_us_rb;
+}
+
+uint32_t ssrc_us_share_get_tail_addr(void)
+{
+    return (uint32_t)&ssrc_us_tail;
+}
+
+int32_t ssrc_us_share_pop_word_blocking(void)
+{
+    int32_t sample;
+
+    while (ssrc_us_head == ssrc_us_tail) {
+        /* 改动原因：输出任务等待 us_stereo.S 生产数据；只阻塞发送任务，不阻塞采样率转换任务。 */
+        asm volatile("nop");
+    }
+
+    sample = ssrc_us_rb[ssrc_us_head];
+    ssrc_us_head++;
+    if (ssrc_us_head >= (SSRC_US_RB_WORDS - 32)) {
+        /* 改动原因：us_stereo.S 使用的 ring size 为 NUM_USB_CHAN_OUT*32*5，不包含尾部padding。 */
+        ssrc_us_head = 0;
+    }
+    return sample;
+}

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/ssrc_us_share_buf.h

@@ -0,0 +1,15 @@
+#ifndef _SSRC_US_SHARE_BUF_H_
+#define _SSRC_US_SHARE_BUF_H_
+
+#include <stdint.h>
+
+/* 改动原因：us_stereo.S 持续写 ring buffer；XC 并行任务不能直接共享全局数组，
+ * 因此用 C 函数封装 ring buffer，作为 tile[1] 内 us_rec_core → us_rec_output_core 的边界。 */
+#define SSRC_US_RB_WORDS        (2 * 32 * 5 + 32)
+
+void ssrc_us_share_reset(void);
+uint32_t ssrc_us_share_get_buffer_addr(void);
+uint32_t ssrc_us_share_get_tail_addr(void);
+int32_t ssrc_us_share_pop_word_blocking(void);
+
+#endif

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/ssrc/us_stereo.S

@@ -0,0 +1,182 @@
+#define FUNCTION_NAME us_stereo
+/*
+void us_stereo(
+    int32_t * coefs,
+    int32_t * l_history,
+    int32_t * r_history,
+    streaming chanend c_in,
+    int32_t history_offset,     +1
+    int32_t * ring_buffer,      +2
+    int32_t * tail,             +3
+    int32_t ring_buffer_size,   +4
+    int32_t num_phase,          +5  (number of polyphase filter)
+    int32_t phase_size,         +6  (in vpu mac size (8word))
+    int32_t final_shr);         +7
+*/
+
+    #define NSTACKWORDS 32
+
+    .cc_top FUNCTION_NAME.function
+    .type   FUNCTION_NAME,@function
+
+    .issue_mode dual
+    .align 4
+
+#define BYTES_PER_WORD 4
+#define CHANNELS 2
+#define WORDS_PER_VECTOR 8
+#define BYTES_PER_VECTOR (WORDS_PER_VECTOR*BYTES_PER_WORD)
+
+#define ZERO    0x0
+#define ONE     0x40000000
+filter_l_1010:
+    .word ZERO, ZERO, ZERO, ZERO, ONE, ZERO, ONE, ZERO
+filter_l_0101:
+    .word ZERO, ZERO, ZERO, ZERO, ZERO, ONE, ZERO, ONE
+filter_r_1010:
+    .word ONE, ZERO, ONE, ZERO, ZERO, ZERO, ZERO, ZERO
+filter_r_0101:
+    .word ZERO, ONE, ZERO, ONE, ZERO, ZERO, ZERO, ZERO
+zeros:
+    .word 0, 0, 0, 0, 0, 0, 0, 0
+    .align 16
+    .globl FUNCTION_NAME
+.globl FUNCTION_NAME.nstackwords
+.set   FUNCTION_NAME.nstackwords, NSTACKWORDS
+FUNCTION_NAME:
+    { dualentsp NSTACKWORDS     ; nop               }
+    
+    stw r4, sp[NSTACKWORDS-1]
+    stw r5, sp[NSTACKWORDS-2]
+    stw r6, sp[NSTACKWORDS-3]
+    stw r7, sp[NSTACKWORDS-4]
+    stw r8, sp[NSTACKWORDS-5]
+    stw r9, sp[NSTACKWORDS-6]
+    stw r10, sp[NSTACKWORDS-7]      // sp[25]
+
+    // store coefs to stack[0]
+    stw r0, sp[24]
+    // store l,r history to stack[1,2]
+    std r2, r1, sp[0]   // sp[1] sp[0]
+    // store the final_shr for the VLSAT to stack[2-9]
+    ldw r0, sp[NSTACKWORDS+7]
+    std r0, r0, sp[1]   // sp[2] sp[3]
+    std r0, r0, sp[2]   // sp[4] sp[5]
+    std r0, r0, sp[3]   // sp[6] sp[7]
+    std r0, r0, sp[4]   // sp[8] sp[9]
+    // store start of ring buffer and tail to stack[10,11]
+    ldw r0, sp[NSTACKWORDS+2]
+    ldw r1, sp[NSTACKWORDS+3]
+    std r0, r1, sp[5]   // sp[11] sp[10]
+    // store sample history offset to stack[12]
+    ldw r0, sp[NSTACKWORDS+1]
+    stw r0, sp[12]
+    // store c_in to stack[13]
+    stw r3, sp[13]
+    // store num_phase and phase size to stack[14,15]
+    ldw r0, sp[NSTACKWORDS+5]
+    ldw r1, sp[NSTACKWORDS+6]
+    stw r0, sp[14]
+    stw r1, sp[15]
+
+    // temp vstr store at stack[16-23]
+
+    // program start
+    ldc r9, BYTES_PER_VECTOR        // r9: BYTES_PER_WORD
+    ldc r10, BYTES_PER_VECTOR*3     // r10: coefs rewind
+    ldd r7, r8, sp[5]              // r7: ring_buffer ptr, r8: tail ptr
+
+outer_loop:
+    ldw r4, sp[12]
+    ldw r3, sp[13]
+    { testct r11, res[r3]       ; ldw r0, sp[0]                 }   // r0: &l_history[0]
+    bt r11, exit
+    { in r11, res[r3]           ; add r2, r0, r4                }   // r2: &l_history[offset]
+    { in r11, res[r3]           ; stw r11, r2[0]                }
+    { ldw r2, sp[1]             ; add r1, r0, BYTES_PER_WORD    }   // r2: &r_history[0], r1: &l_history[4]
+    { add r4, r2, r4            ; add r3, r2, BYTES_PER_WORD    }   // r4: &r_history[offset], r3: &r_history[4]
+    { stw r11, r4[0]            ; nop                           }
+    { ldw r4, sp[24]             ; add r11, r2, 0               }   // r4: &coeff[0], r11: r2
+    ldw r6, sp[15]                                                  // r6: phase size
+    { sub r6, r6, 2             ; ldw r5, sp[14]                }   // burst 2, r5: num of phase
+    { vclrdr                    ; nop                           }
+    bu mac_loop
+phase_loop:
+    { nop                       ; ldaw r11, sp[2]               }
+    { vlsat r11[0]              ; ldaw r11, sp[16]              }   // turn all accumulators into 32 bits
+    { vstr r11[0]               ; nop                           }   // store accumulators result into stack[16-23]
+    { vldc r11[0]               ; nop                           }   // load the accumulators result into VC from stack
+    { vclrdr                    ; ldap r11, filter_r_1010       }   // clear vR vD
+    { vlmaccr r11[0]            ; ldap r11, filter_l_1010       }   // r us t1, vD:vR -> {r_us_t1, 0, 0, 0}
+    { vlmaccr r11[0]            ; ldap r11, filter_r_0101       }   // l us t1, vD:vR -> {l_us_t1, r_us_t1, 0, 0}
+    { vlmaccr r11[0]            ; ldap r11, filter_l_0101       }   // r us t0, vD:vR -> {r_us_t0, l_us_t1, r_us_t1, 0}
+    { vlmaccr r11[0]            ; ldap r11, zeros               }   // l us t0, vD:vR -> {l_us_t0, r_us_t0, l_us_t1, r_us_t1}, r11: all zeros for vlsat
+    { vlsat r11[0]              ; ldc r11, BYTES_PER_WORD*4     }   // sat(vD:vR), r11: BYTES_PER_WORD*4 = 4 sample size
+    { vstr r7[0]                ; add r7, r7, r11               }   // save result to ring buffer, update ring buffer ptr
+    { ldw r11, r8[0]            ; nop                           }   // r11: tail value
+    { ldw r6, sp[NSTACKWORDS+4] ; add r11, r11, 4               }   // r6: ring_buffer size, r11: tail + 4
+    { stw r11, r8[0]            ; eq r11, r11, r6               }   // update tail ptr, r11: check if tail at ring buffer end
+    { bf r11, prepare_mac_loop  ; nop                           }   // if tail not at buffer end, prepare mac loop
+    { ldw r7, sp[11]            ; ldc r11, 0                    }   // r7: ring buffer start, r11: 0
+    { stw r11, r8[0]            ; nop                           }   // update tail ptr to 0
+prepare_mac_loop:
+    { ldw r6, sp[15]            ; sub r5, r5, 2                 }   // r6: phase size, r5: r5-2 processed two polyphase filter
+    { bf r5, outer_loop         ; sub r6, r6, 2                 }   // burst 2
+    ldd r1, r0, sp[0]                                               // r0: &l_history[0], r2: &r_history[0]
+    { vclrdr                    ; nop                           }
+    bu mac_loop_no_move
+mac_loop:
+    // swap r11 for channel
+    { add r2, r11, 0    ; add r11, r0, 0    }   // r11: r0
+    // left channel
+    { vldc r1[0]        ; add r1, r1, r9    }
+    { vstc r11[0]       ; add r11, r11, r9  }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vldc r1[0]        ; add r1, r1, r9    }
+    { vstc r11[0]       ; add r11, r11, r9  }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vlmaccr r4[0]     ; sub r4, r4, r10   }   // rewind
+    // swap r11 for channel
+    { add r0, r11, 0    ; add r11, r2, 0    }
+    // right channel
+    { vldc r3[0]        ; add r3, r3, r9    }
+    { vstc r11[0]       ; add r11, r11, r9  }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vldc r3[0]        ; add r3, r3, r9    }
+    { vstc r11[0]       ; add r11, r11, r9  }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { vlmaccr r4[0]     ; add r4, r4, r9    }
+    { bt r6, mac_loop   ; sub r6, r6, 2     }   // vD:vR -> {right_f1, right_f0, left_f1, left_f0}
+    bu phase_loop
+mac_loop_no_move:
+    // left channel
+    { vldc r0[0]                ; add r0, r0, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vldc r0[0]                ; add r0, r0, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vlmaccr r4[0]             ; sub r4, r4, r10   }   // rewind
+    // right channel
+    { vldc r1[0]                ; add r1, r1, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vldc r1[0]                ; add r1, r1, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { vlmaccr r4[0]             ; add r4, r4, r9    }
+    { bt r6, mac_loop_no_move   ; sub r6, r6, 2     }
+    bu phase_loop
+
+exit:
+    {inct r0, res[r3]; nop}
+    ldw r4, sp[NSTACKWORDS-1]
+    ldw r5, sp[NSTACKWORDS-2]
+    ldw r6, sp[NSTACKWORDS-3]
+    ldw r7, sp[NSTACKWORDS-4]
+    ldw r8, sp[NSTACKWORDS-5]
+    ldw r9, sp[NSTACKWORDS-6]
+    ldw r10, sp[NSTACKWORDS-7]
+    retsp NSTACKWORDS
+    
+    .cc_bottom FUNCTION_NAME.function

sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/sy102_hid_protocol.md

@@ -8,8 +8,8 @@
 ### 1.2 支持的指令列表
 | 指令码 | 命令名称 | 功能 | 方向 | 描述 |
 |--------|----------|------|------|------|
-| 0x82 | SET_MIC_VOLUME | 设置麦克风增益级别 | 主机→设备 | 设置麦克风PGA增益（0=静音, 1-37=0dB~36dB, 1dB/步） |
-| 0x83 | GET_MIC_VOLUME | 获取麦克风增益级别 | 主机→设备 | 读取当前麦克风PGA增益级别（0=静音, 1-37=0dB~36dB） |
+| 0x82 | SET_MIC_VOLUME | 设置麦克风增益级别 | 主机→设备 | 设置麦克风增益（0=静音, 1-48=0~24dB, 2级=1dB） |
+| 0x83 | GET_MIC_VOLUME | 获取麦克风增益级别 | 主机→设备 | 读取当前麦克风增益级别（0=静音, 1-48=0~24dB, 2级=1dB） |
 | 0x84 | FACTORY_RESET | 恢复出厂默认设置 | 主机→设备 | 删除Flash中所有已保存参数，设备重启后自动恢复出厂默认值 |
 | 0x85 | SET_AI_NOISE_STRENGTH | 设置AI降噪强度 | 主机→设备 | 设置AI降噪强度（0=关闭，2-100偶数=强度级别，步进2；100对应最强-200dB） |
 | 0x86 | GET_AI_NOISE_STRENGTH | 获取AI降噪强度 | 主机→设备 | 读取当前AI降噪强度；强度变化（含按键切换、开机初始值）时设备主动上报 |
@@ -24,8 +24,8 @@
 | 0x90 | RESET_EQ_PARAMS | 复位EQ参数 | 主机→设备 | 删除Flash中的EQ参数并恢复头文件预设参数 |
 | 0x91 | GET_EQ_MODE_COUNT | 获取EQ模式总数 | 主机→设备 | 返回预定义加用户模式的总数（不包含禁用模式） |
 | 0x92 | SET_AND_SAVE_EQ_MODE | 设置并保存EQ模式 | 主机→设备 | 设置当前EQ模式(0-9)并保存到Flash，开机时自动恢复 |
-| 0x93 | SET_VOLUME | 设置监听音量级别 | 主机→设备 | 设置设备监听音量级别（0=静音, 1-29=-28dB~0dB, 1dB/步） |
-| 0x94 | GET_VOLUME | 获取监听音量级别 | 主机→设备 | 读取设备当前监听音量级别（0=静音, 1-29=-28dB~0dB, 1dB/步） |
+| 0x93 | SET_VOLUME | 设置监听音量级别 | 主机→设备 | 设置设备监听音量级别（0=静音, 1-48按SY102dac对应表映射到-66dB~0dB） |
+| 0x94 | GET_VOLUME | 获取监听音量级别 | 主机→设备 | 读取设备当前监听音量级别（0=静音, 1-48按SY102dac对应表映射） |
 | 0x9D | SET_EQ_ENABLE | 设置EQ使能开关 | 主机→设备 | 设置EQ使能开关（ON/OFF），禁用时保存当前模式，启用时恢复之前模式 |
 | 0x9E | GET_EQ_ENABLE | 获取EQ使能开关 | 主机→设备 | 读取EQ使能开关状态（ON/OFF） |
 | 0x9F | GET_SAMPLE_FORMAT | 获取采样率和格式 | 主机→设备 | 读取当前采样率、DSD模式和DAC采样分辨率 |
@@ -59,17 +59,18 @@
 ---------|------|------|------
 0        | 1    | 0x77 | 同步头1
 1        | 1    | 0x82 | 命令码
-2        | 1    | uint8 | 增益级别 (0=静音, 1-37=0dB~36dB, 1dB/步)
+2        | 1    | uint8 | 增益级别 (0=静音, 1-48=0~24dB, 2级=1dB)
 3-62     | 60   | 0x00 | 保留字节
 ```
 
 **参数说明**:
-- **增益级别范围：** 0-37（共38级）
+- **增益级别范围：** 0-48（共49级）
   - 0：静音（mute）
-  - 1：0dB（最小有效增益）
+  - 1：约0.5dB（按2级=1dB映射）
   - 2：1dB
-  - ...（1dB/步）
-  - 37：36dB（最大HID可设置增益）
+  - ...（2级=1dB）
+  - 47：约23.5dB
+  - 48：24dB（最大HID可设置增益）
 
 **返回值**:
 无直接返回值。设备端增益变化会主动上报0x83格式数据包。
@@ -93,7 +94,7 @@
 0        | 1    | 0x01 | Report ID
 1        | 1    | 0x77 | 同步头1
 2        | 1    | 0x83 | 同步头2
-3        | 1    | uint8 | 当前增益级别 (0=静音, 1-37=0dB~36dB)
+3        | 1    | uint8 | 当前增益级别 (0=静音, 1-48=0~24dB, 2级=1dB)
 4-62     | 59   | 0x00 | 保留字节
 ```
 
@@ -515,12 +516,12 @@
 ---------|------|------|------
 0        | 1    | 0x77 | 同步头1
 1        | 1    | 0x93 | 命令码
-2        | 1    | uint8 | 音量级别 (0-29: 0=静音, 1=-28dB, ..., 29=0dB)
+2        | 1    | uint8 | 音量级别 (0-48: 0=静音, 1=-66dB, ..., 48=0dB；按SY102dac对应表)
 3-62     | 60   | 0x00 | 保留字节
 ```
 
 **参数说明**:
-- **音量级别范围：** 0-29（共30级）
+- **音量级别范围：** 0-48（共49级）
 - **说明：** 控制设备监听输出（DAC/耳机）音量级别
   - 0: 静音（mute，DAC完全静音）
   - 1: -28dB（最小有效音量）
@@ -550,7 +551,7 @@
 0        | 1    | 0x01 | Report ID
 1        | 1    | 0x77 | 同步头1
 2        | 1    | 0x94 | 同步头2
-3        | 1    | uint8 | 当前音量级别 (0-29: 0=静音, 1-29=-28dB~0dB, 1dB/步)
+3        | 1    | uint8 | 当前音量级别 (0-48: 0=静音, 1-48按SY102dac对应表映射到-66dB~0dB)
 4-62     | 59   | 0x00 | 保留字节
 ```
 ### 2.20 0x9D - SET_EQ_ENABLE (设置EQ使能开关)