Piezo 측정 중에는 배터리/온도 저전압 체크가 동작하지 않도록 가드 추가

- battery_loop()에서 maa_async_is_busy()면 return
- safety_check_complete()에서도 MAA 중이면 dr_piezo_power_off() 안 하고 return

project/ble_peripheral/ble_app_bladder_patch/measurement/battery/battery_saadc.c

@@ -90,6 +90,7 @@ extern bool go_batt;
 extern bool motion_raw_data_enabled;
 extern bool ble_got_new_data;
 extern bool motion_data_once;
+extern bool maa_async_is_busy(void);
 
 /*==============================================================================
  * safety_check_complete - Called by tmp235 handler after temperature measurement
@@ -102,6 +103,11 @@ void safety_check_complete(float temp_c)
     //DBG_PRINTF("[SAFETY] Batt=%d mV, Temp=%d.%d C\r\n",
     //           (int)safety_batt_mv, (int)temp_c, ((int)(temp_c * 10)) % 10);
 
+    if (maa_async_is_busy())
+    {
+        return;
+    }
+
     /* Battery check */
     if (safety_batt_mv <= LOW_BATTERY_VOLTAGE)
     {
@@ -268,6 +274,10 @@ void battery_loop(void * p_context)
     {
         return;
     }
+    if (maa_async_is_busy())
+    {
+        return;
+    }
 
     low_battery_check = true;
     battery_level_meas();