diff --git a/Core/Inc/ev1527.h b/Core/Inc/ev1527.h
index dc52a02..040ef57 100644
--- a/Core/Inc/ev1527.h
+++ b/Core/Inc/ev1527.h
@@ -48,6 +48,7 @@ void STS_RF_Send_Multi_Times(uint8_t *rf_payload, uint8_t rf_length, uint8_t mt)
 void STS_RF_Send_Button_Multi_Times(uint8_t *rf_payload, uint8_t one_button, uint8_t rf_length, uint8_t mt);
 void STS_RF_Send_AddressBit_and_CmdBit(uint8_t *rf_payload, uint8_t rf_length);
 
-
+void EV1527Reset(void);
+void EV1527Decode(uint32_t v);
 
 #endif
diff --git a/Core/Src/ev1527.c b/Core/Src/ev1527.c
index 96cff61..68dd3ea 100644
--- a/Core/Src/ev1527.c
+++ b/Core/Src/ev1527.c
@@ -76,7 +76,7 @@ void EV1527_Init(void)
     // 配置上拉输入
     GPIO_InitStruct.Pin = DATA_433_PIN;
     GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
-    //GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
     HAL_GPIO_Init(DATA_433_GPIO_PORT, &GPIO_InitStruct);
 }
@@ -423,7 +423,7 @@ extern uint8_t rf_data[4];
 #define BIT0_LOW_US			1100
 #endif
 
-#if 0								// RC_PROJECTOR
+#if 1								// RC_PROJECTOR
 #define BIT1_HIGH_US		1000		// duty cycle =
 #define BIT1_LOW_US			500		//
 #define BIT0_HIGH_US		250
@@ -432,7 +432,7 @@ extern uint8_t rf_data[4];
 #define ENDING_HIGH_US		200
 #endif
 
-#if 1								// SOS BUTTON
+#if 0								// SOS BUTTON
 #define BIT1_HIGH_US		800	// duty cycle =
 #define BIT1_LOW_US			300		//
 #define BIT0_HIGH_US		300
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index d3017c2..59c5973 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -123,10 +123,10 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
   HAL_GPIO_Init(RF_Send_GPIO_Port, &GPIO_InitStruct);
 
-#if 0
+#if 1
   GPIO_InitStruct.Pin = RF_Receive_GPIO_Pin;
-  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
-  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING; //GPIO_MODE_INPUT; //GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
   HAL_GPIO_Init(RF_Receive_GPIO_Port, &GPIO_InitStruct);
 #endif
@@ -190,7 +190,7 @@ void MX_GPIO_Init(void)
   HAL_NVIC_EnableIRQ(EXTI4_IRQn);
 
 
-  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 2, 0);
   HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
 
   HAL_NVIC_SetPriority(EXTI15_10_IRQn, 2, 0);
diff --git a/Core/Src/main.c b/Core/Src/main.c
index ce1b638..b9c6679 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -58,9 +58,9 @@ uint32_t uwFrequency = 0;
 #endif
 
 #if 1
- uint32_t capture_Buf[3]={0};	// counter
- uint8_t capture_Cnt=0;			// state
- uint32_t high_time, low_time;	// high level duration, low level duration
+ volatile uint32_t capture_Buf[3]={0};	// counter
+ volatile uint8_t capture_Cnt=0;			// state
+ volatile uint32_t high_time, low_time;	// high level duration, low level duration
 #endif
 //uint8_t rf_payload[3]={0xF8,0xCD,0x07}, rf_length=3;
 
@@ -165,14 +165,14 @@ int main(void)
   MX_USART2_UART_Init();
 
 
-  MX_USART1_UART_Init();
+  // MX_USART1_UART_Init();
 
   MX_TIM1_Init();
 
   printf("start \r\n");
 
-  EV1527_Init();
-
+  // EV1527_Init();
+  EV1527Reset();
 #if 0
   /*## Start the Input Capture in interrupt mode ##########################*/
   if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_2) != HAL_OK)
@@ -216,6 +216,8 @@ int main(void)
       Error_Handler();
     }
 #endif
+
+#if 1
     /*## Start the Input Capture in interrupt mode ##########################*/
     if (HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_1) != HAL_OK)
     {
@@ -223,25 +225,30 @@ int main(void)
       Error_Handler();
     }
 
-
+#endif
 
     while(1)
     {
-#if 1
+
+#if 0
   	  switch(capture_Cnt) {
 
   	  case 0:
   		  capture_Cnt ++;
-  		  printf("cc: %ld ", capture_Cnt);
-  		  TIM_SET_CAPTUREPOLARITY(&htim1, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_RISING);
+  		  //printf("cc: %ld \r\n", capture_Cnt);
+  		  //TIM_SET_CAPTUREPOLARITY(&htim1, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_RISING);
+  		  __HAL_TIM_SET_CAPTUREPOLARITY(&htim1,TIM_CHANNEL_2,TIM_INPUTCHANNELPOLARITY_RISING);
   		  HAL_TIM_IC_Start_IT(&htim1, TIM_CHANNEL_2);	// or _HAL_TIM_ENABLE(&htim1);
   		  break;
 
   	  case 3:
   		  high_time = capture_Buf[1] - capture_Buf[0];	// high time
-  		  printf("ht: %ld ", high_time);
+  		  low_time =  capture_Buf[2] - capture_Buf[1];	// low time
+  		  if (low_time/high_time > 2) printf("_");
+  		  if (high_time/low_time > 2) printf("+");
   		  // HAL_UART_Transmit(&huart2, (uint8_t*)high_time, 1, 0xffff);	// print high time
-  		  HAL_Delay(1000);		//delay 1 s
+  		  //HAL_Delay(1000);		//delay 1 s
+  		  //HAL_Delay_Us(1000000);
   		  capture_Cnt = 0;		// clear flag
   		  break;
   	  }
@@ -405,7 +412,8 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 
 	case DATA_433_PIN:
 		//printf("^");
-		RF_Signal_Decode();
+		HAL_TIM_IC_CaptureCallback(&htim1);
+		//RF_Signal_Decode();
 
 		break;
 
diff --git a/Core/Src/stm32wlxx_hal_msp.c b/Core/Src/stm32wlxx_hal_msp.c
index 7d0ab63..73369f8 100644
--- a/Core/Src/stm32wlxx_hal_msp.c
+++ b/Core/Src/stm32wlxx_hal_msp.c
@@ -74,6 +74,74 @@ void HAL_MspInit(void)
 }
 
 
+/**
+* @brief TIM_IC MSP Initialization
+* This function configures the hardware resources used in this example
+* @param htim_ic: TIM_IC handle pointer
+* @retval None
+*/
+void HAL_TIM_IC_MspInit(TIM_HandleTypeDef* htim_ic)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(htim_ic->Instance==TIM1)
+  {
+  /* USER CODE BEGIN TIM1_MspInit 0 */
+
+  /* USER CODE END TIM1_MspInit 0 */
+    /* Peripheral clock enable */
+    __HAL_RCC_TIM1_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**TIM1 GPIO Configuration
+    PA9     ------> TIM1_CH2
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_9;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    /* TIM1 interrupt Init */
+    HAL_NVIC_SetPriority(TIM1_CC_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
+  /* USER CODE BEGIN TIM1_MspInit 1 */
+
+  /* USER CODE END TIM1_MspInit 1 */
+  }
+
+}
+
+/**
+* @brief TIM_IC MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param htim_ic: TIM_IC handle pointer
+* @retval None
+*/
+void HAL_TIM_IC_MspDeInit(TIM_HandleTypeDef* htim_ic)
+{
+  if(htim_ic->Instance==TIM1)
+  {
+  /* USER CODE BEGIN TIM1_MspDeInit 0 */
+
+  /* USER CODE END TIM1_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM1_CLK_DISABLE();
+
+    /**TIM1 GPIO Configuration
+    PA9     ------> TIM1_CH2
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9);
+
+    /* TIM1 interrupt DeInit */
+    HAL_NVIC_DisableIRQ(TIM1_CC_IRQn);
+  /* USER CODE BEGIN TIM1_MspDeInit 1 */
+
+  /* USER CODE END TIM1_MspDeInit 1 */
+  }
+
+}
+
 /**
 * @brief TIM_Base MSP Initialization
 * This function configures the hardware resources used in this example
diff --git a/Core/Src/stm32wlxx_it.c b/Core/Src/stm32wlxx_it.c
index f3b7ccc..a8ac49a 100644
--- a/Core/Src/stm32wlxx_it.c
+++ b/Core/Src/stm32wlxx_it.c
@@ -369,10 +369,10 @@ void EXTI9_5_IRQHandler(void)
   __HAL_GPIO_EXTI_CLEAR_IT(RC_D5_Pin);
 #endif
 
-  HAL_GPIO_EXTI_IRQHandler(BUT3_Pin);
+  //HAL_GPIO_EXTI_IRQHandler(BUT3_Pin);
 
   HAL_GPIO_EXTI_IRQHandler(DATA_433_PIN);
-  //__HAL_GPIO_EXTI_CLEAR_IT(DATA_433_PIN);
+  __HAL_GPIO_EXTI_CLEAR_IT(DATA_433_PIN);
 
   /* USER CODE BEGIN EXTI9_5_IRQn 1 */
 
@@ -459,13 +459,14 @@ void SUBGHZ_Radio_IRQHandler(void)
 }
 
 /* USER CODE BEGIN 1 */
-
+#if 0
 void TIM1_IRQHandler(void)
 {
 	TIM1_cnt++;
 	HAL_TIM_IRQHandler(&htim1);
 }
-#if 0
+#endif
+#if 1
 /**
   * @brief This function handles TIM1 Capture Compare Interrupt.
   */
@@ -480,6 +481,8 @@ void TIM1_CC_IRQHandler(void)
   /* USER CODE END TIM1_CC_IRQn 1 */
 }
 #endif
+
+#if 1
 /**
   * @brief This function handles TIM1 Capture Compare Interrupt.
   */
@@ -495,5 +498,5 @@ void TIM1_IC_IRQHandler(void)
   /* USER CODE END TIM1_CC_IRQn 1 */
 }
 
-
+#endif
 /* USER CODE END 1 */
diff --git a/STM32CubeIDE/Release/WL55JC_AS923.elf b/STM32CubeIDE/Release/WL55JC_AS923.elf
index 39af0da..c62f420 100644
Binary files a/STM32CubeIDE/Release/WL55JC_AS923.elf and b/STM32CubeIDE/Release/WL55JC_AS923.elf differ