diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/synido.xn b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/synido.xn
index 1eb32bc..2a8b88d 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/synido.xn
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/synido.xn
@@ -52,7 +52,8 @@
             <Port Location="XS1_PORT_1K"  Name="PORT_I2S_DAC0"/> <!-- orig 1P, Synido 1K -->
             <Port Location="XS1_PORT_1A"  Name="PORT_I2S_ADC0"/> <!-- orig 1I, Synido 1A -->
 
-            <Port Location="XS1_PORT_4D" Name="PORT_CTL_MUTE"/> <!-- Tile1 4D0 -->
+            <Port Location="XS1_PORT_4A" Name="PORT_CTL_MUTE"/> <!-- Tile1 4D0 -->
+            <Port Location="XS1_PORT_4D" Name="PORT_CTL_MUTE2"/> <!-- Tile1 4D0 -->
 
           </Tile>
         </Node>
diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
index 7ad5f45..d89f366 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
@@ -150,6 +150,7 @@ port p_sda = PORT_I2C_SDA;
 //out port p_htr3235_sdb = PORT_HTR3236_SDB; /* 连接到HTR3236的SDB引脚，用于控制其电源状态 */
 
 out port p_ctl_mute = PORT_CTL_MUTE;
+out port p_ctl_mute2 = PORT_CTL_MUTE2;
 
 
 /* Board setup for XU316 MC Audio (1v1) */
@@ -1975,6 +1976,8 @@ void AudioHwConfig(unsigned samFreq, unsigned mClk, unsigned dsdMode, unsigned s
 void mute_handler()
 {
     p_ctl_mute <: 0;
+    p_ctl_mute2 <: 0;
     delay_milliseconds(1000);
-    p_ctl_mute <: 1;
+    p_ctl_mute <: 0xf;
+    p_ctl_mute2 <: 0xf;
 }