diff --git a/Power_Pico/Core/Inc/adc.h b/Power_Pico/Core/Inc/adc.h
index 0b6a9ad..da5c489 100644
--- a/Power_Pico/Core/Inc/adc.h
+++ b/Power_Pico/Core/Inc/adc.h
@@ -30,22 +30,19 @@ extern "C" {
 
 /* USER CODE BEGIN Includes */
 
-#define ADC_TIMES 10
+#define ADC_TIMES 100
 #define ADC_CHANELS 4
 
 typedef struct {
   uint8_t  header[5];
   // 0x55, 0xAA header
   // 0x64 adc times, 0x05 adc channels (so data lenth is times * channels * 2 bytes)
-  // and 1byte for direct & unit, 0x0? for positive, 0x1? for negative, 0x?0 for LOW, 0x?1 for MID, 0x?2 for HIGH
+  // and 1byte for direct & unit, 0x0? for positive, 0x1? for negative, 0x?0 for LOW, 0x?1 for MID, 0x?2 for HIGH.
   uint16_t data[ADC_TIMES][ADC_CHANELS]; // ADC 数据（真正要采集的地方）
 } __attribute__((packed)) ADC_Packet;
 
 extern ADC_Packet adc_packet1, adc_packet2;
 
-// cur 5mr, cur 500mr, cur 50r, val
-extern uint16_t adc_buf1[ADC_TIMES+1][ADC_CHANELS];
-extern uint16_t adc_buf2[ADC_TIMES+1][ADC_CHANELS];
 /* USER CODE END Includes */
 
 extern ADC_HandleTypeDef hadc1;
diff --git a/Power_Pico/Core/Src/adc.c b/Power_Pico/Core/Src/adc.c
index 2bc152a..6b2b539 100644
--- a/Power_Pico/Core/Src/adc.c
+++ b/Power_Pico/Core/Src/adc.c
@@ -23,9 +23,6 @@
 /* USER CODE BEGIN 0 */
 
 ADC_Packet adc_packet1, adc_packet2;
-// cur 5mr, cur 500mr, cur 50r, voltage
-uint16_t adc_buf1[ADC_TIMES+1][ADC_CHANELS];
-uint16_t adc_buf2[ADC_TIMES+1][ADC_CHANELS];
 
 /* USER CODE END 0 */