diff --git a/Power_Pico/BSP/GATE/gate.c b/Power_Pico/BSP/GATE/gate.c
index b529719..465c85f 100644
--- a/Power_Pico/BSP/GATE/gate.c
+++ b/Power_Pico/BSP/GATE/gate.c
@@ -1,21 +1,9 @@
 #include "gate.h"
 #include "data_queue.h"
-#include "usart.h"
 #include "math.h"
 
-// 量程阈值
-#define THRESH_HIGH 4000-2048 // 对应550uA 50mA
-#define THRESH_LOW  15 // 对应大概450uA 45mA
-// 次数
-#define THRESH_TIMES 8
-
 uint8_t gate_status = HIGH_CUR; // Default status
 
-// 预先计算标度因子
-static const double SCALE_LOW  = 3.0f / 4096.0f / 50.0f / LOW_CUR_RES *  1000000.0; // uA
-static const double SCALE_MID  = 3.0f / 4096.0f / 50.0f / MID_CUR_RES *  1000000.0; // uA
-static const double SCALE_HIGH  = 3.0f / 4096.0f / 50.0f / HIGH_CUR_RES * 1000000.0; // uA
-
 void Gate_Port_Init(void)
 {
   GPIO_InitTypeDef GPIO_InitStruct = {0};
@@ -72,72 +60,3 @@ uint8_t Gate_get_status(void)
   return gate_status;
 }
 
-// 在DMA中断中执行, 不能有阻塞
-void Gate_Swich_and_UART_Send(ADC_Packet adc_packet)
-{
-  static uint8_t high_times = 0;
-  static uint8_t low_times = 0;
-  // adc码值
-  uint16_t ref_adc = adc_packet.data[0][4];
-  uint16_t vol_adc = adc_packet.data[0][0];
-  uint16_t cur_adc = 0;
-  switch(Gate_get_status()) {
-    case LOW_CUR:
-      cur_adc = adc_packet.data[0][1];
-      break;
-    case MID_CUR:
-      cur_adc = adc_packet.data[0][2];
-      break;
-    case HIGH_CUR:
-      cur_adc = adc_packet.data[0][3];
-      break;
-  }
-  // 计算电压电流值
-  float voltage;
-  float current;
-  uint16_t diff = abs((int)cur_adc - ref_adc);
-
-  adc_packet.header[3] = Gate_get_status();
-  ADC_Packet adc_packet_trans = adc_packet;
-  HAL_UART_Transmit_DMA(&huart6, (uint8_t*)&adc_packet_trans, sizeof(adc_packet_trans));
-  // 计算电压电流值
-  voltage = vol_adc * 3.0f / 4096.0f * 11.0f; // 11 = (100+10)/10
-  // 计算电流值
-  if(Gate_get_status() == LOW_CUR) {
-    current = adc_packet.data[0][1];
-    current = (current - ref_adc) * SCALE_LOW;
-  }
-  else if(Gate_get_status() == MID_CUR) {
-    current = adc_packet.data[0][2];
-    current = (current - ref_adc) * SCALE_MID;
-  }
-  else if(Gate_get_status() == HIGH_CUR) {
-    current = adc_packet.data[0][3];
-    current = (current - ref_adc) * SCALE_HIGH;
-  }
-  // 入队列
-  queue_push(global_voltage_queue, voltage);
-  queue_push(global_current_queue, current);
-  // 判断是否需要切换档位
-  // ADC码值超过量程
-  if(diff > THRESH_HIGH) {
-    high_times++;
-    low_times = 0;
-    if(high_times >= THRESH_TIMES) {
-      high_times = 0;
-      flow_route_selection(Gate_get_status()+1);
-    }
-  }
-  else if(diff < THRESH_LOW) {
-    low_times++;
-    high_times = 0;
-    if(low_times >= THRESH_TIMES) {
-      low_times = 0;
-      flow_route_selection(Gate_get_status()-1);
-    }
-  }
-  else {
-    high_times = 0;
-    low_times = 0;
-  }
-}
diff --git a/Power_Pico/BSP/GATE/gate.h b/Power_Pico/BSP/GATE/gate.h
index d07c127..d446bd5 100644
--- a/Power_Pico/BSP/GATE/gate.h
+++ b/Power_Pico/BSP/GATE/gate.h
@@ -21,15 +21,9 @@ extern "C" {
 #define MID_CUR 2
 #define LOW_CUR 1
 
-// Resistance values in ohms
-#define HIGH_CUR_RES 0.005f   // 5 m ohm
-#define MID_CUR_RES 0.5f      // 500 m ohm
-#define LOW_CUR_RES 50.0f     // 50 ohm
-
 void Gate_Port_Init(void);
 void flow_route_selection(uint8_t selection);
 uint8_t Gate_get_status(void);
-void Gate_Swich_and_UART_Send(ADC_Packet adc_packet);
 
 #ifdef __cplusplus
 }