diff --git a/Core/Src/ev1527.c b/Core/Src/ev1527.c
index 49fd96a..692f562 100644
--- a/Core/Src/ev1527.c
+++ b/Core/Src/ev1527.c
@@ -1,5 +1,5 @@
 #include "ev1527.h"
-volatile uint32_t TIM1_cnt=0;
+
 // 定时周期
 //#define TIME_CYCLE 80
 #define 	TIME_CYCLE	PERIOD_VALUE
@@ -72,6 +72,7 @@ void EV1527_Init(void)
     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
     HAL_GPIO_Init(DATA_433_GPIO_PORT, &GPIO_InitStruct);
 }
+#if 0
 /**----------------------------------------------------------------------------------------------**
  **函数名  ：RF信号解码函数
  **功能说明：解码从433MHz接收到的信号，并根据解码结果执行相应功能
@@ -172,8 +173,9 @@ void RF_Signal_Decode(void)
         break;
     }
 }
+#endif
 
-#if 0
+#if 1
 /**----------------------------------------------------------------------------------------------**
  **函数名  ：RF信号解码函数
  **功能说明：解码从433MHz接收到的信号，并根据解码结果执行相应功能
@@ -326,7 +328,7 @@ void Decode_Data(void)
 void Execute_Function(void)
 {
     // 判断解码后的功能字节，并执行相应操作
-    switch (Received_Buffer[FUNCTION_BYTE_INDEX])
+    switch (0x0F&Received_Buffer[FUNCTION_BYTE_INDEX])
     {
     case FUNCTION_1:
         // 执行功能1
@@ -371,23 +373,6 @@ void Execute_Function(void)
     }
 }
 
-#if 0
-uint8_t RF;
-uint8_t decode_ok;	//解码成功
-uint8_t hh_w,ll_w;  //高,低电平宽度
-uint8_t ma_x;		//接收到第几位编码了
-
-uint8_t bma1,bma2,bma3,bma4;		//用于接收过程存放遥控编码，编码比较两次，这是第一次
-uint8_t mma1,mma2,mma3,mma4;
-uint8_t mmb1,mmb2,mmb3,mmb4;		//用于接收过程存放遥控编码，第二次
-//extern uint8_t mmbl,mmb2,mmb3,mmb4;
-uint8_t rf_okl,rf_ok2,rf_ok;		//解码过程中的临时接收成功标志,接收到一个完整的遥控命令后置1,通知解码程序可以解码了
-
-uint8_t old_rc5;					//保存上一次查询到的电平状态
-uint8_t tb_ok;						//接收到同步的马时置1
-uint8_t D0,D1,D2,D3;
-uint16_t s,s1;
-#endif
 
 uint8_t bt_auto;					//自动设置遥控接收波特率标志
 extern uint8_t rf_data[4];
@@ -439,17 +424,9 @@ void STS_RF_write_send_0(void)
 
 void STS_RF_write_send_leading(void)
 {
-#if 0
-	STS_RF_write_send_1();
-	STS_RF_write_send_0();
-	STS_RF_write_send_1();
-#endif
-
 	HAL_GPIO_WritePin(RF_Send_GPIO_Port, RF_Send_GPIO_Pin, RESET);
 	//HAL_Delay(CNT_LONG_MS);	// 8 msec long low level
 	HAL_Delay_Us(LEADING_MS*1000);
-	HAL_Delay_Us(LEADING_MS*1000);
-	HAL_Delay_Us(LEADING_MS*1000);
 }
 
 void STS_RF_write_send_ending(void)
@@ -465,7 +442,7 @@ void STS_RF_Send_Button_Multi_Times(uint8_t *rf_payload, uint8_t one_button, uin
 	// normally, send 5-8 cycles of same address and cmd code
 	uint8_t push_button_cmd = one_button;
 
-	for (uint8_t i=0;i< mt;i++)
+	for (uint8_t i=0; i< mt; i++)
 	{
 		rf_payload[2] |= ((push_button_cmd));
 		printf("%d : Address=%02X:%02X:%01x CMD=%01X\r\n",i,
@@ -482,10 +459,7 @@ void STS_RF_Send_Multi_Times(uint8_t *rf_payload, uint8_t rf_length, uint8_t mt)
 {
 	// normally, send 5-8 cycles of same address and cmd code
 	// uint8_t push_button_cmd = 0x01;
-
-
-
-	for (uint8_t i=0;i< mt;i++)
+	for (uint8_t i=0; i< mt; i++)
 	{
 		rf_payload[2] |= ((i+1) <<4);
 		printf("%d : Address=%02X:%02X:%01x CMD=%01X\r\n",i, rf_payload[0],rf_payload[1],rf_payload[2]&0x0F, (rf_payload[2]>>4)&0x0F);
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index 0079795..862abdf 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -125,7 +125,7 @@ void MX_GPIO_Init(void)
 
 #if 1
   GPIO_InitStruct.Pin = RF_Receive_GPIO_Pin;
-  GPIO_InitStruct.Mode = GPIO_MODE_INPUT; //GPIO_MODE_INPUT; //GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING; //GPIO_MODE_INPUT; //GPIO_MODE_IT_RISING_FALLING;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
   HAL_GPIO_Init(RF_Receive_GPIO_Port, &GPIO_InitStruct);
diff --git a/Core/Src/main.c b/Core/Src/main.c
index b80cbb9..561f656 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -128,139 +128,28 @@ int main(void)
   // MX_I2C2_Init();
   MX_GPIO_Init();
 
-
-
    // MX_LoRaWAN_Init();
   /* USER CODE BEGIN 2 */
   MX_USART2_UART_Init();
 
 
-  // MX_USART1_UART_Init();
+ // MX_USART1_UART_Init();
 
-  MX_TIM1_Init();
+//  MX_TIM1_Init();
   MX_TIM2_Init();
 
-  /*## Start the TIM Base generation in interrupt mode ####################*/
-  /* Start Channel1 */
-  if (HAL_TIM_Base_Start_IT(&htim1) != HAL_OK)
-  {
-    /* Starting Error */
-    Error_Handler();
-  }
-
-
   if (HAL_TIM_Base_Start_IT(&htim2) != HAL_OK)
   {
     /* Starting Error */
     Error_Handler();
   }
-  /* --------------------------------------------------------------------------- */
-#if 1
-  /*## Start the Input Capture in interrupt mode ##########################*/
-  if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_2) != HAL_OK)
-  {
-    /* Starting Error */
-    Error_Handler();
-  }
-#endif
-
-#if 1
-  /*## Start the Input Capture in interrupt mode ##########################*/
-  if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_1) != HAL_OK)
-  {
-    /* Starting Error */
-    Error_Handler();
-  }
-
-#endif
 
 
   printf("start \r\n");
-
   while(1)
-     {
-
-     }
-
-
-  // EV1527_Init();
-
-#if 0
-  /*## Start the Input Capture in interrupt mode ##########################*/
-  if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_2) != HAL_OK)
   {
-	  printf("tim1 ch2 start IT error \r\n");
-    /* Starting Error */
-    Error_Handler();
+
   }
-#endif
-
-  /* ---------------------------------------------------------------------------
-    TIM1 configuration: PWM Input mode
-
-    In this example TIM1 input clock (TIM1CLK) is set to APB2 clock (PCLK2),
-      since APB2 prescaler is 1.
-      TIM1CLK = PCLK2
-      PCLK2 = HCLK
-      => TIM1CLK = HCLK = SystemCoreClock
-
-    External Signal Frequency = TIM1 counter clock / TIM1_CCR2 in Hz.
-
-    External Signal DutyCycle = (TIM1_CCR1*100)/(TIM1_CCR2) in %.
-
-    --------------------------------------------------------------------------- */
-#if 1
-    /*## Start the Input Capture in interrupt mode ##########################*/
-    if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_2) != HAL_OK)
-    {
-      /* Starting Error */
-      Error_Handler();
-    }
-#endif
-
-#if 1
-    /*## Start the Input Capture in interrupt mode ##########################*/
-    if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_1) != HAL_OK)
-    {
-      /* Starting Error */
-      Error_Handler();
-    }
-
-#endif
-
-    while(1)
-    {
-
-    }
-
-
-while(1)
-{
-	// printf("uwF=%ld Hz\r\n", uwFrequency);
-	// STS_RF_Send_Multi_Times(payload, 3, 5);
-}
-
-
-#if 0
-  uint8_t i;
-  while (1)
-  {
-	  for(i=0; i<6; i++)
-	  {
-		  printf("\r\n Remote control Key down =%d \r\n", i);
-		  sts_rc_key(i);
-		  HAL_Delay(3000);
-
-		  printf("\r\n Remote control decoded: %02x \r\n", codexx);
-		  // sts_rc_decoder();
-
-		  HAL_Delay(3000);
-		  codexx=0;
-	  }
-
-	  HAL_Delay(2000);
-  }
-#endif
 
   /* USER CODE END 2 */
 
@@ -280,24 +169,6 @@ while(1)
 }
 
 
-#if 0
-void RF_Read_TIM_init(void)
-{
-	TIM_Base_InitTypeDef TIM_Base_Init_Struct;
-
-	NVIC_InitTypeDef NVIC_Init_Struct;
-	RF_Read_TIM_RCC;
-	TIM_Base_Init_Struct.TIM_ClockDivision = TIM_CKD_DIV1;
-	TIM_Base_Init_Struct.TIM_CounterMode = TIM_CounterMode_Up;
-	// every int trigger time = [(Tim_Period+1)*(TIM_Prescaler+1)/(SystemCoreClock)] (s)
-	TIM_Base_Init_Struct.Tim_Prescalar = 48 -1;
-	TIM_Base_Init_Struct.Tim_Period = 0xffff -1;
-	TIM_Base_Init_Struct.TIM_RepetitionCounter = 0;
-	TIM_TimeBaseInit(RF_Read_TIM_TIMx, &TIM_Init_Struct);
-	TIM_ITConfig(RF_Read_TIM_TIMx, TIM_IT_Update, ENABLE);
-}
-#endif
-
 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 {
 	uint8_t single_button =0;
@@ -338,8 +209,8 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 
 
 	case DATA_433_PIN:
-		//printf("^");
-		// HAL_TIM_IC_CaptureCallback(&htim1);
+		// printf("^");
+		//HAL_TIM_IC_CaptureCallback(&htim1);
 		//RF_Signal_Decode();
 
 		break;
@@ -348,146 +219,8 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 		break;
 	}
 
-#if 0
-	codexx =0;
-  switch (GPIO_Pin)
-  {
-    case  RC_D0_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D0_GPIO_Port, RC_D0_Pin)<<0);
-    	printf("[0]=%02x ",codexx);
-      break;
-    case  RC_D1_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D1_GPIO_Port, RC_D1_Pin)<<1);
-    	printf("[1]=%02x ",codexx);
-      break;
-    case  RC_D2_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D2_GPIO_Port, RC_D2_Pin)<<2);
-    	printf("[2]=%02x ",codexx);
-      break;
-    case  RC_D3_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D3_GPIO_Port, RC_D3_Pin)<<3);
-    	printf("[3]=%02x ",codexx);
-      break;
-#if 0
-    case  RC_D4_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D4_GPIO_Port, RC_D4_Pin)<<4);
-    	printf("[4]=%02x ",codexx);
-      break;
-    case  RC_D5_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D5_GPIO_Port, RC_D5_Pin)<<5);
-    	printf("[5]=%02x ",codexx);
-      break;
-    case  RC_D6_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D6_GPIO_Port, RC_D6_Pin)<<6);
-    	printf("[6]=%02x ",codexx);
-      break;
-    case  RC_D7_Pin:
-    	codexx |= (HAL_GPIO_ReadPin(RC_D7_GPIO_Port, RC_D7_Pin)<<7);
-    	printf("[7]=%02x ",codexx);
-      break;
-#endif
-    case  RC_VT_Pin:
-    	code_vt = (HAL_GPIO_ReadPin(RC_VT_GPIO_Port, RC_VT_Pin));
-    	printf("[V]=%02x ",codexx);
-      break;
-
-    default:
-      break;
-  }
-#endif
-
 }
 
-
-#if 0
-void sts_rc_key(uint8_t key)
-{
-	HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-	HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-	HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_SET);
-	HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-	HAL_Delay(100);
-
-	switch (key) {
-	case 0:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-		break;
-	case 1:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-		break;
-	case 2:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-
-		break;
-	case 3:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-
-		break;
-	case 4:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-
-		break;
-	case 5:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-
-		break;
-	case 6:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_SET);
-
-		break;
-	case 7:
-		HAL_GPIO_WritePin(RC_K0_GPIO_Port, RC_K0_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K1_GPIO_Port, RC_K1_Pin, GPIO_PIN_RESET);
-		HAL_GPIO_WritePin(RC_K2_GPIO_Port, RC_K2_Pin, GPIO_PIN_SET);
-		HAL_GPIO_WritePin(RC_K3_GPIO_Port, RC_K3_Pin, GPIO_PIN_RESET);
-
-		break;
-
-	}
-
-}
-
-uint8_t sts_rc_decodedx(void)
-{
-	uint8_t codelow4=0, codehigh4=0;
-
-	codelow4  = (HAL_GPIO_ReadPin(RC_D0_GPIO_Port, RC_D0_Pin)<<0)|(HAL_GPIO_ReadPin(RC_D1_GPIO_Port, RC_D1_Pin)<<1)|(HAL_GPIO_ReadPin(RC_D2_GPIO_Port, RC_D2_Pin)<<2)|(HAL_GPIO_ReadPin(RC_D3_GPIO_Port, RC_D3_Pin)<<3);
-	codehigh4 = (HAL_GPIO_ReadPin(RC_D4_GPIO_Port, RC_D4_Pin)<<4)|(HAL_GPIO_ReadPin(RC_D5_GPIO_Port, RC_D5_Pin)<<5)|(HAL_GPIO_ReadPin(RC_D6_GPIO_Port, RC_D6_Pin)<<6)|(HAL_GPIO_ReadPin(RC_D7_GPIO_Port, RC_D7_Pin)<<7);
-	// printf("%02x \r", (codehigh4|codelow4));
-	return (codehigh4|codelow4);
-}
-
-void  sts_rc_decoder(void)
-{
-	uint8_t codex=0;
-
-	codex = HAL_GPIO_ReadPin(RC_D0_GPIO_Port, RC_D0_Pin)|(HAL_GPIO_ReadPin(RC_D1_GPIO_Port, RC_D1_Pin)<<1)|(HAL_GPIO_ReadPin(RC_D2_GPIO_Port, RC_D2_Pin)<<2)|(HAL_GPIO_ReadPin(RC_D3_GPIO_Port, RC_D3_Pin)<<3);
-
-	printf("decoded x= %02x \r\n", codex);
-
-}
-#endif
 /**
   * @brief System Clock Configuration
   * @retval None
diff --git a/Core/Src/stm32wlxx_it.c b/Core/Src/stm32wlxx_it.c
index 13f9d74..071b2c3 100644
--- a/Core/Src/stm32wlxx_it.c
+++ b/Core/Src/stm32wlxx_it.c
@@ -371,8 +371,18 @@ void EXTI9_5_IRQHandler(void)
 
   HAL_GPIO_EXTI_IRQHandler(BUT3_Pin);
 
-  //HAL_GPIO_EXTI_IRQHandler(DATA_433_PIN);
-  //__HAL_GPIO_EXTI_CLEAR_IT(DATA_433_PIN);
+ /*   *********************************************   */
+ /*   must keep this with TIM2  for correct decoding  */
+ /*   *********************************************   */
+
+  HAL_GPIO_EXTI_IRQHandler(DATA_433_PIN);
+  __HAL_GPIO_EXTI_CLEAR_IT(DATA_433_PIN);
+
+  /*   *********************************************   */
+  /*   must keep this with TIM2  for correct decoding  */
+  /*   *********************************************   */
+
+
 
   /* USER CODE BEGIN EXTI9_5_IRQn 1 */
 
@@ -465,7 +475,6 @@ void TIM1_IRQHandler(void)
 	HAL_TIM_IRQHandler(&htim1);
 }
 #endif
-
 #if 0
 /**
   * @brief This function handles TIM1 Capture Compare Interrupt.
@@ -482,7 +491,7 @@ void TIM1_CC_IRQHandler(void)
 }
 #endif
 
-#if 1
+#if 0
 /**
   * @brief This function handles TIM1 Capture Compare Interrupt.
   */
diff --git a/Core/Src/tim.c b/Core/Src/tim.c
index 0a0dbd7..280ebb1 100644
--- a/Core/Src/tim.c
+++ b/Core/Src/tim.c
@@ -32,7 +32,7 @@ extern TIM_HandleTypeDef htim1, htim2;
 // TIM_HandleTypeDef htim1;
 
 /* USER CODE BEGIN PV */
-#if 1
+#if 0
 
 extern volatile uint32_t capture_Buf[3];	// counter
 extern volatile uint8_t capture_Cnt;			// state
@@ -50,7 +50,7 @@ extern  uint32_t            uwFrequency;
 #endif
 
 uint8_t bit=0;
-#if 1
+#if 0
 /* Captured Values */
 extern uint32_t uwIC2Value1;
 extern uint32_t uwIC2Value2;
@@ -66,7 +66,7 @@ extern uint32_t uwFrequency;
 
 
 /* USER CODE END 0 */
-
+#if 0
 /**
   * @brief TIM1 Initialization Function
   * @param None
@@ -152,7 +152,7 @@ void MX_TIM1_Init(void)
 
 }
 
-
+#endif
 
 /**
   * @brief TIM2 Initialization Function
@@ -257,16 +257,23 @@ void EV1527Decode(uint32_t v)
 
 void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
 {
+#if 0
 	if (TIM1 == htim->Instance)
 	{
 		printf(".");
-	} else 	if (TIM2 == htim->Instance)
+	} else
+		if (TIM2 == htim->Instance)
+#endif
 	{
 		RF_Signal_Decode();
+
 	}
 
 }
 
+#endif
+
+#if 0
 void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
 {
 	static uint32_t uwICValue;
@@ -275,21 +282,21 @@ void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
 	static uint32_t highCnt=0, lowCnt=0;
 	static uint8_t sync=0;
 
-	 printf(" cc ");
+	 //printf(" cc ");
 	// RF_Signal_Decode();
 
-	if (TIM1 == htim->Instance)
+	// if (TIM1 == htim->Instance)
 	{
-		if ((htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2))
+		// if ((htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2))
 		{
 			if (HAL_GPIO_ReadPin(RF_Receive_GPIO_Port,RF_Receive_GPIO_Pin)== GPIO_PIN_RESET)
 			{	// Falling edge
-				//printf(">");
-				highCnt = HAL_TIM_ReadCapturedValue(&htim1, TIM_CHANNEL_2);	// get current value
+				// printf(">");
+				highCnt = HAL_TIM_ReadCapturedValue(&htim2, TIM_CHANNEL_2);	// get current value
 			}
 			else if ((HAL_GPIO_ReadPin(RF_Receive_GPIO_Port,RF_Receive_GPIO_Pin) == GPIO_PIN_SET))
 			{	// Rising edge
-				lowCnt =  HAL_TIM_ReadCapturedValue(&htim1, TIM_CHANNEL_2);	// get current value
+				lowCnt =  HAL_TIM_ReadCapturedValue(&htim2, TIM_CHANNEL_2);	// get current value
 				if (syn == 1)
 				{	// sync then decode
 					if ((lowCnt > EV1527_L4_MIN) && (highCnt < EV1527_L4_MAX))
@@ -327,7 +334,7 @@ void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
 						syn = 1;
 						pulseCnt = 0;
 						code = 0;
-						//printf("sync: %d \r\n", lowCnt);
+						printf("sync: %d \r\n", lowCnt);
 					}
 				}
 			}
diff --git a/STM32CubeIDE/Release/RC1_20250227.elf b/STM32CubeIDE/Release/RC1_20250227.elf
new file mode 100644
index 0000000..f8df437
Binary files /dev/null and b/STM32CubeIDE/Release/RC1_20250227.elf differ
diff --git a/STM32CubeIDE/Release/WL55JC_AS923.elf b/STM32CubeIDE/Release/WL55JC_AS923.elf
index 2e50cb3..f8df437 100644
Binary files a/STM32CubeIDE/Release/WL55JC_AS923.elf and b/STM32CubeIDE/Release/WL55JC_AS923.elf differ