fix(power): skip boot lights and sound-board init below 6.8V

A protected pack only trickle-charges, so Dream, the 12V rail, and the amp stay off until the pack is above 6.8V. Firmware is 0.2.51.

Co-authored-by: Cursor <cursoragent@cursor.com>

APP/app_adc.c

@@ -359,6 +359,7 @@ static uint16_t s_vbat_raw = 0;
 static uint8_t  s_vbat_valid = 0;
 static uint8_t  s_charge_ui_allowed = 0;
 static uint8_t  s_pct_shown_valid = 0;
+static uint8_t  s_heavy_boot_msg = 0;
 
 /* 高于 6.8V 才允许点亮关机充电页；未采样视为不允许 */
 uint8_t app_adc_charge_ui_allowed(void)
@@ -462,6 +463,19 @@ static void app_adc_battery_report(void)
     s_vbat_raw = filtered;
     s_vbat_valid = 1u;
 
+    /* 高于 6.8V 才允许开机灯和音源板。电压未知或仍低时不发，避免保护态涓流被 Dream/12V 吃掉 */
+    if (!powon || allow == 0u)
+    {
+        s_heavy_boot_msg = 0;
+        if (powon && allow == 0u)
+            Audio_AbortIfNotReady();
+    }
+    else if (!Audio_IsReady() && !Audio_BringupStarted() && !s_heavy_boot_msg)
+    {
+        s_heavy_boot_msg = 1;
+        MainTask_Sendmsg(MSG_ID_HEAVY_BOOT, 0, 0, 0);
+    }
+
     /* 开机使用中包电压低于等于 6.8V：提示页停留 10s 后关机。插着 Type-C 同样停负载 */
     if (powon && !System_LowBat_IsActive() && allow == 0u)
     {

Global/Global.c

@@ -111,7 +111,7 @@ int16_t MIC_VOL_MAP[11]= {-9000,-7000,-5000,-3000,-1000,1000,3000,5000,7000,9000
 
 uint8_t TOUCH_AREA_NUM = (sizeof(Touch_Areas)/sizeof(Touch_AreaTypeDef));
 
-const uint8_t Version[3] = {0,2,50}; /* major.minor.patch — 0.2.50: 音源板未就绪前不进模式起奏 */
+const uint8_t Version[3] = {0,2,51}; /* major.minor.patch — 0.2.51: 低于 6.8V 不亮开机灯、不初始化音源 */
 uint8_t Led = 8;
 bool PressFlag = 0;
 
@@ -232,6 +232,7 @@ static void PowerOff_EmergencyReset(void)
 
 /* 音源板初始化完成前为 0。彩灯与上电并行，模式键在置 1 之前忽略 */
 static volatile uint8_t s_audio_bringup_req = 0;
+static volatile uint8_t s_audio_bringup_started = 0;
 static volatile uint8_t s_audio_ready = 0;
 
 void System_PowerOn(void)
@@ -241,6 +242,8 @@ void System_PowerOn(void)
   StartFlag = 0;
   InModeFlag = false; /* 停在模式选择，禁止拨片/侧面键起奏 */
   s_audio_ready = 0;
+  s_audio_bringup_started = 0;
+  s_audio_bringup_req = 0;
   /* 弦音色、移调跨开关机保留。节奏/曲目/走向/段落/蓝牙/BPM 每次开机回默认 */
   Session_ApplyPowerOnDefaults();
   Accomp_ApplyDefaultIChord();
@@ -295,6 +298,12 @@ static void Power_QuiesceForCharge(const char *where)
  * 彩灯约 1.1s 与音源板上电重叠。s_audio_ready 置位前不进演奏模式。 */
 void System_RequestAudioBringUp(void)
 {
+  /* 保护/低电时充电电流很小，Dream+12V+功放会把包电压按住，充不上去 */
+  if (s_audio_bringup_started || s_audio_ready)
+    return;
+  if (!app_adc_charge_ui_allowed())
+    return;
+  s_audio_bringup_started = 1;
   s_audio_ready = 0;
   s_audio_bringup_req = 1;
 }
@@ -304,6 +313,19 @@ uint8_t Audio_IsReady(void)
   return s_audio_ready;
 }
 
+uint8_t Audio_BringupStarted(void)
+{
+  return s_audio_bringup_started;
+}
+
+void Audio_AbortIfNotReady(void)
+{
+  if (s_audio_ready)
+    return;
+  s_audio_bringup_req = 0;
+  s_audio_bringup_started = 0;
+}
+
 /* 低于等于 6.8V：充电画面亮 10s 后关屏，充电继续 */
 #define CHARGE_BL_LOW_MS  10000u
 static uint32_t s_charge_bl_off_at = 0;
@@ -367,6 +389,11 @@ void System_AudioBringUp_Poll(void)
 {
   if (!s_audio_bringup_req || !powon)
     return;
+  if (!app_adc_charge_ui_allowed())
+  {
+    Audio_AbortIfNotReady();
+    return;
+  }
   s_audio_bringup_req = 0;
   LOG_I("PWR", "bring up audio rails");
   /* LOGO 和彩灯期间不要求发音，电源在彩灯结束后才开。
@@ -397,8 +424,14 @@ void System_AudioBringUp_Poll(void)
     return;
   MasterVolume_Reapply();
   LoadConfig();
-  if (!powon)
+  if (!powon || !app_adc_charge_ui_allowed())
+  {
+    Audio_AbortIfNotReady();
+    BSP_DreamCorePowerEnable(0);
+    BSP_HT7178PowerEnable(0);
+    BSP_BlueToothPowerEnable(0);
     return;
+  }
   s_audio_ready = 1;
   MainTask_Sendmsg(MSG_ID_EC_VOL, app_adc_get_volume(), level, 0);
   LOG_I("PWR", "periph ready + BT UART recv started");
@@ -416,6 +449,8 @@ static void PowerOff(void)
   LOG_I("PWR", "power_off begin");
   powon = false;    /* 更新关机标志 */
   s_audio_ready = 0;
+  s_audio_bringup_started = 0;
+  s_audio_bringup_req = 0;
   InModeFlag = false; /* 软关机后勿残留进模式，避免再开机模式选择页拨片起奏 */
   s_pwr_off_grace_ms = 0u; /* 主路径已接管，取消紧急倒计时 */
   StopFullTask();

Global/Global.h

@@ -34,6 +34,7 @@
 #define MSG_ID_LOW_BAT_TIP          30
 #define MSG_ID_STOP_BAND            31  /* 停止键/收束：MainTask 串行硬停 */
 #define MSG_ID_START_FOLLOWUP       32  /* 保留：软停补发已撤销，不再使用 */
+#define MSG_ID_HEAVY_BOOT           33  /* 包电压高于 6.8V 后才点开机灯并初始化音源 */
 
 #define GPIO_PIN_RESET   false
 #define GPIO_PIN_SET     true
@@ -184,6 +185,8 @@ void System_PowerOn(void);
 void System_RequestAudioBringUp(void);
 void System_AudioBringUp_Poll(void);
 uint8_t Audio_IsReady(void);
+uint8_t Audio_BringupStarted(void);
+void Audio_AbortIfNotReady(void);
 void Power_ChargeIdle_LogPoll(void);
 /* 高于 6.8V：充电页背光保持；低于等于 6.8V：亮 10s 后关屏。拔电时复位倒计时。 */
 void Power_ChargeBacklightSteady(void);

UI/UI_Idle.c

@@ -177,6 +177,20 @@ void Touch_Mode_Select_Action(int8_t FLAG, uint8_t ID, uint8_t areaIndex)
 extern uint8_t bat_init_done;
 /* 关机充电页已绘制标志：POWER_ON 需清除，以便再次软关机充电时重绘 */
 static bool s_charge_ui_drawn = false;
+static uint8_t s_boot_led_done = 0;
+
+/* 包电压已高于 6.8V 才点侧灯并给音源板上电。电压未知或仍低电时直接返回。 */
+static void UI_BeginPerformancePower(void)
+{
+    if (!powon || !app_adc_charge_ui_allowed())
+        return;
+    if (!s_boot_led_done)
+    {
+        s_boot_led_done = 1;
+        UI_BootLedShow();
+    }
+    System_RequestAudioBringUp();
+}
 void IdleProcess(DisplayTaskMessage_Type msg)
 { 
     switch (msg.MessageType)
@@ -187,11 +201,11 @@ void IdleProcess(DisplayTaskMessage_Type msg)
             LCD_WR_REG(0x29); /* Display ON */
             s_charge_ui_drawn = false;
             LCD_BLK_Set();
-            /* 彩灯与音源板上电并行。主循环初始化期间模式键先忽略 */
+            s_boot_led_done = 0;
-            System_RequestAudioBringUp();
+            /* 高于 6.8V 才与彩灯并行给音源板上电；否则只留屏幕，等电压起来再补 */
             LCD_WR_PIC_FROM_FLASH(0, 0, UI0902_BOOT_LOGO_W, UI0902_BOOT_LOGO_H,
                                   UI0902_BOOT_LOGO_ADDR);
-            UI_BootLedShow();
+            UI_BeginPerformancePower();
 
             UI_DrawModeSelectScreen();
             /* 先启动触摸再返回，功放初始化改到主循环，避免 UI 堵在 I2C 里点击无响应 */
@@ -200,6 +214,10 @@ void IdleProcess(DisplayTaskMessage_Type msg)
             Draw_Volume_Bar(UI0902_VOL_X, UI0902_VOL_Y, level, 1, WHITE, GRAY);
         break;
 
+        case MSG_ID_HEAVY_BOOT:
+            UI_BeginPerformancePower();
+        break;
+
         case MSG_ID_POWER_OFF:
             /* 无 Type-C：整机关机熄屏；有 Type-C 时随后 POWOFF_CHARG 会再亮充电图 */
             LCD_BLK_Clr();

task/task_init.c

@@ -117,6 +117,7 @@ void TaskMainThread_entry(void* parameter)
         switch(xEvent.MessageType)
         {
             case MSG_ID_POWER_ON   : UITask_Sendmsg(MSG_ID_POWER_ON, xEvent.ID, xEvent.HiByte, xEvent.LoByte); break;
+            case MSG_ID_HEAVY_BOOT : UITask_Sendmsg(MSG_ID_HEAVY_BOOT, xEvent.ID, xEvent.HiByte, xEvent.LoByte); break;
             case MSG_ID_POWER_OFF  : break;
             //case MSG_ID_ADCIN1KEY  : ADC_IN1_KEY_Handle(xEvent.ID);break;
             case MSG_ID_BP_KEY:
@@ -147,6 +148,7 @@ void TaskMainThread_entry(void* parameter)
                 /* 立即停声并切掉音源/12V/蓝牙，避免提示的 10s 里继续把电池拉过保护电压 */
                 Stop_AutoBand();
                 Send_volume(0);
+                Audio_AbortIfNotReady();
                 BSP_DreamCorePowerEnable(0);
                 BSP_HT7178PowerEnable(0);
                 BSP_BlueToothPowerEnable(0);

tools/publish_k1_release.py

@@ -38,7 +38,7 @@ TONE_HDR = PROJ / "project" / "inc" / "ExtFlash_Tone_Addr.h"
 IAP_DIR = REPO / "升级" / "MCU主控升级"
 OUT_ROOT = REPO / "tools" / "out"
 
-FW_VER = "0.2.48"
+FW_VER = "0.2.51"
 UI0902_RES_BASE = 0x00100000
 BOOT_FLASH_ADDR = 0x08000000
 APP_FLASH_ADDR = 0x08008000