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pop noise fix

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This commit is contained in:
Steven Dan
2026-03-26 17:17:41 +08:00
parent b7e21b5fc7
commit 5d6cd95ed9
1 changed files with 32 additions and 23 deletions
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13
sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/audiohw.xc
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@@ -1617,13 +1617,22 @@ void AudioHwInit()
/* Configures the external audio hardware for the required sample frequency */ /* Configures the external audio hardware for the required sample frequency */
void AudioHwConfig(unsigned samFreq, unsigned mClk, unsigned dsdMode, unsigned sampRes_DAC, unsigned sampRes_ADC) void AudioHwConfig(unsigned samFreq, unsigned mClk, unsigned dsdMode, unsigned sampRes_DAC, unsigned sampRes_ADC)
{ {
static unsigned count = 0;
g_samfreq = samFreq; g_samfreq = samFreq;
{ {
sw_pll_fixed_clock(mClk); sw_pll_fixed_clock(mClk);
} }
p_ctl_mute <: 1;
// 通知tile0 (button_task) 采样率已变化，用于配置NAU88C22寄存器 // 通知tile0 (button_task) 采样率已变化，用于配置NAU88C22寄存器
unsafe {uc_audiohw <: samFreq; } unsafe {uc_audiohw <: samFreq; }
unsafe {uc_audiohw <: dsdMode; } unsafe {uc_audiohw <: dsdMode; }
}
if (count++ > 0)
{
p_ctl_mute <: 1;
}
else
{
debug_printf("don't unmute at boot\n");
}
}