diff --git a/BSP/src/bsp_adc.c b/BSP/src/bsp_adc.c
index 3283f20..79e5537 100644
--- a/BSP/src/bsp_adc.c
+++ b/BSP/src/bsp_adc.c
@@ -37,6 +37,9 @@ uint8_t BSP_ReadVbat(void)
     DelayUs(50);
     ADC_ExcutSingleConver();
     DelayUs(50);
+    ADC_ExcutSingleConver();
+    DelayUs(1);
+    ADC_ExcutSingleConver();
     for (i = 0; i < 20; i++)
     {
         adcBuff[i] = ADC_ExcutSingleConver(); // 连续采样20次