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fix(amp): init the amplifier once after the string clock is up 

Bring up 12V and Dream together after the boot lights, then configure the amp a single time so the string tone stays intact and the unmute write is not lost.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
yuquanjun 2026-09-28 09:47:47 +08:00
parent 0e106e4da1
commit df0fd0f6d0
2 changed files with 15 additions and 7 deletions
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17
Global/Global.c
View File

@ -357,20 +357,29 @@ void System_AudioBringUp_Poll(void)
return;
s_audio_bringup_req = 0;
LOG_I("PWR", "bring up audio rails");
BSP_DreamCorePowerEnable(1);
/* LOGO 和彩灯期间不要求发音，电源在彩灯结束后才开。
12V 与 Dream 一起开：功放没有 I2S 时钟时写寄存器会停在静音。
等电源和时钟都稳后再初始化功放，并且只做一次，避免琴弦波形被第二次复位打乱。 */
BSP_HT7178PowerEnable(1);
BSP_DreamCorePowerEnable(1);
BSP_BlueToothPowerEnable((uint8_t)(mGuiData[GUI_BL_SW].Current ? 1 : 0));
Power_LogRails("audio-up");
/* 12V 升压刚打开时功放模拟电源未稳，立刻写寄存器会仍处于静音 */
rt_thread_mdelay(80);
rt_thread_mdelay(480);
if (!powon)
return;
AD85020B_Init();
App_Auto_Init();
/* App 协议走 UART4：须在开机后即解析，不能等到触摸选模式才 StartTask */
StartTask();
/* Dream 刚上电会丢掉首包。等它起来后再发弦音色和主音量，并补发一次 */
rt_thread_mdelay(400);
if (!powon)
return;
MasterVolume_Reapply();
LoadConfig();
rt_thread_mdelay(400);
if (!powon)
return;
AD85020B_Init();
MasterVolume_Reapply();
LoadConfig();
MainTask_Sendmsg(MSG_ID_EC_VOL, app_adc_get_volume(), level, 0);

5
device/AD85020B/Drv_AD85020B.c
View File

@ -460,9 +460,8 @@ AD85020B_StatusTypeDef AD85020B_Init(void)
/* 样机 EQ：在解除静音前写入，避免先播出直通声音 */
status = AD85020B_ApplyPrototypeEq();
if (status != AD85020B_OK) return status;
/* 样机 EQ：在解除静音前写入。写失败也要继续解除静音，否则拨片和琴弦无声 */
(void)AD85020B_ApplyPrototypeEq();
/* 步骤6：解除静音（文档SCTL3，MMUTE=0，0x00） */
status = AD85020B_I2C_Write(AD85020B_REG_SCTL3, 0x00);