diff --git a/BSP/src/bsp_adc.c b/BSP/src/bsp_adc.c
index 43262e7..7806e3f 100644
--- a/BSP/src/bsp_adc.c
+++ b/BSP/src/bsp_adc.c
@@ -30,6 +30,7 @@ uint16_t max_number           = 0;
 double voltage                = 0;
 
 // https://www.cnblogs.com/iot-fan/p/14304854.html
+__HIGH_CODE
 uint8_t BSP_ReadVbat(void)
 {
     uint8_t i;
@@ -43,6 +44,7 @@ uint8_t BSP_ReadVbat(void)
     // DelayUs(50);
     ADC_InterBATSampInit();
     DelayUs(1);
+    // TODO：这里有死循环
     ADC_ExcutSingleConver();
     DelayUs(1);
     ADC_ExcutSingleConver();