From f0daa4f62ed61fa8b63d3185daf1639edf4242d3 Mon Sep 17 00:00:00 2001
From: Steven Dan <guang1025@163.com>
Date: Mon, 8 Jun 2026 18:53:25 +0800
Subject: [PATCH] update flash size 3200k

---
 .../src/extensions/dfu_flash_interface.c                    | 4 ----
 .../src/extensions/dfu_upgrade.c                            | 2 +-
 .../src/extensions/dfu_upgrade.h                            | 6 +++++-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_flash_interface.c b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_flash_interface.c
index 5b6f154..6d403ae 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_flash_interface.c
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_flash_interface.c
@@ -13,10 +13,6 @@
 
 #if HID_DFU_EN
 
-#ifndef DFU_FLASH_MAX_UPGRADE_SIZE
-#define DFU_FLASH_MAX_UPGRADE_SIZE (2800 * 1024)
-#endif
-
 #define DFU_FLASH_ERROR()
 
 static int dfu_flash_device_open = 0;
diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.c b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.c
index 9c8cfb4..b76ded3 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.c
+++ b/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);
diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.h b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.h
index da5da73..977c284 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/dfu_upgrade.h
+++ b/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 (3200 * 1024)
+#endif
+
 
 // 页缓冲区结构
 typedef struct {