diff --git a/Core/Inc/ev1527.h b/Core/Inc/ev1527.h
index 040ef57..96088f2 100644
--- a/Core/Inc/ev1527.h
+++ b/Core/Inc/ev1527.h
@@ -51,4 +51,33 @@ void STS_RF_Send_AddressBit_and_CmdBit(uint8_t *rf_payload, uint8_t rf_length);
 void EV1527Reset(void);
 void EV1527Decode(uint32_t v);
 
+
+
+#if 0
+// #include "stm32f10x.h"
+void EXTI_PB11_Config(void);
+void IrDa_Init(void);
+uint8_t Get_Pulse_Time(void);
+uint8_t IrDa_Process(void);
+
+#define IRDA_ID 0
+
+//红外遥控使用的GPIO及时钟
+#define IRDA_GPIO_PORT    						GPIOE
+#define IRDA_GPIO_CLK 	    					RCC_APB2Periph_GPIOE
+#define IRDA_GPIO_PIN									GPIO_Pin_5
+#define IRDA_GPIO_PORT_SOURCE				GPIO_PortSourceGPIOE
+#define IRDA_GPIO_PIN_SOURCE					GPIO_PinSource5
+
+//中断相关
+#define IRDA_EXTI_LINE								EXTI_Line5
+#define IRDA_EXTI_IRQN								EXTI9_5_IRQn
+#define IRDA_EXTI_IRQHANDLER_FUN			EXTI9_5_IRQHandler
+
+ //读取引脚的电平
+#define  IrDa_DATA_IN()	   GPIO_ReadInputDataBit(IRDA_GPIO_PORT,IRDA_GPIO_PIN)
+#endif
+
+
+
 #endif
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index 7d6dddb..c03903a 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -90,8 +90,16 @@ void Error_Handler(void);
 #define USART1_TX_GPIO_Port GPIOB
 
 #ifdef	RC
+
 #define TIM1_PRESCALER_VALUE	47L			// 1  us for stm32wle5xx 48Mhz
-#define TIM1_PERIOD_VALUE		79L			// 80 us
+#define TIM1_PERIOD_VALUE		9L			// 10 us
+
+#define TIM2_PRESCALER_VALUE 	(uint32_t)(((SystemCoreClock) /(1000000)) - 1)
+// make it 1 us interval
+#define TIM2_PERIOD_VALUE 		(90 - 1)
+// make it 40 us interval
+#define PRESCALER_VALUE			TIM2_PRESCALER_VALUE
+#define PERIOD_VALUE			TIM2_PERIOD_VALUE
 
 // REMOTE CONTROL EV1527/HS1527 LORA-WAN RELAY NODE
 
@@ -172,7 +180,7 @@ void Error_Handler(void);
 #define RF_Receive_GPIO_Port		GPIOA
 #define RF_Receive_GPIO_Pin			GPIO_PIN_9
 #define RF_Receive_GPIO_CLK_EN()	__HAL_RCC_GPIOA_CLK_ENABLE();
-
+#define RF_Receive_Data_In()		HAL_GPIO_ReadPin(RF_Receive_GPIO_Port, RF_Receive_GPIO_Pin)
 #endif
 
 
diff --git a/Core/Inc/tim.h b/Core/Inc/tim.h
index efd1057..f811edd 100644
--- a/Core/Inc/tim.h
+++ b/Core/Inc/tim.h
@@ -39,8 +39,9 @@ extern TIM_HandleTypeDef htim1;
 
 /* USER CODE BEGIN Prototypes */
 void MX_TIM1_Init(void);
+void MX_TIM2_Init(void);
 void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);
-
+uint8_t Get_Pulse_Time(void);
 /* USER CODE END Prototypes */
 
 #ifdef __cplusplus
diff --git a/Core/Src/ev1527.c b/Core/Src/ev1527.c
index 48d1571..49fd96a 100644
--- a/Core/Src/ev1527.c
+++ b/Core/Src/ev1527.c
@@ -1,14 +1,15 @@
 #include "ev1527.h"
 volatile uint32_t TIM1_cnt=0;
 // 定时周期
-#define TIME_CYCLE 80
+//#define TIME_CYCLE 80
+#define 	TIME_CYCLE	PERIOD_VALUE
 // #define TIME_CYCLE 20
 // 定义引导码的最小和最大持续时间（单位：us）
 #define MIN_LEAD_CODE (5600 / TIME_CYCLE)
 #define MAX_LEAD_CODE (16000 / TIME_CYCLE)
 
 // 定义数据位持续时间的最小和最大范围（单位：us）
-#define MIN_BIT_DURATION (80 / TIME_CYCLE)
+#define MIN_BIT_DURATION (100 / TIME_CYCLE)
 #define MAX_BIT_DURATION (2400 / TIME_CYCLE)
 
 // 定义功能字节在接收缓冲区中的索引位置
@@ -84,28 +85,21 @@ void RF_Signal_Decode(void)
         // 判断是否低电平
         if (HAL_GPIO_ReadPin(DATA_433_GPIO_PORT, DATA_433_PIN) == GPIO_PIN_RESET)
         {
-        	// printf("_");
-            // Lead_Code_Count++;
-        	// Lead_Code_Count = TIM1_cnt - Lead_Code_Count_Start;
+
+            Lead_Code_Count++;
 
         }
         else // 高电平判断范围
         {
-
-        	Lead_Code_Count = TIM1_cnt - Lead_Code_Count_Start;
-        	printf("+");
             // 判断引导码范围是否合法
-
             if (Lead_Code_Count >= MIN_LEAD_CODE && Lead_Code_Count <= MAX_LEAD_CODE)
             {
                 Lead_Code_Count = 0;
                 Reset_Decode_Parameters();  // 重置解码参数
                 RF_Decode_State = HIGH_BIT; // 进入高位数据位判断状态
-                printf("+");
             }
             else
             {
-            	printf(".");
                 Reset_Decode_Parameters(); // 引导码范围不合法，重置解码参数
             }
         }
@@ -115,20 +109,16 @@ void RF_Signal_Decode(void)
         // 判断是否高电平
         if (HAL_GPIO_ReadPin(DATA_433_GPIO_PORT, DATA_433_PIN) == GPIO_PIN_SET)
         {
-            // High_Bit_Count++;
-        	// High_Bit_Count = TIM1_cnt;
-        	High_Bit_Count_Start = TIM1_cnt;
+             High_Bit_Count++;
         }
         else // 低电平判断范围
         {
-        	High_Bit_Count = TIM1_cnt - High_Bit_Count_Start;
             // 判断高位数据位范围是否合法
             if (High_Bit_Count >= MIN_BIT_DURATION && High_Bit_Count <= MAX_BIT_DURATION)
             {
                 High_Bit_Duration = High_Bit_Count; // 保存计数值，用于区分0和1
                 High_Bit_Count = 0;
                 RF_Decode_State = LOW_BIT; // 进入低位数据位判断状态
-                printf("-");
             }
             else
             {
@@ -141,20 +131,16 @@ void RF_Signal_Decode(void)
         // 判断是否低电平
         if (HAL_GPIO_ReadPin(DATA_433_GPIO_PORT, DATA_433_PIN) == GPIO_PIN_RESET)
         {
-            //Low_Bit_Count++;
-        	// Low_Bit_Count = TIM1_cnt;
-        	Low_Bit_Count_Start = TIM1_cnt;
+            Low_Bit_Count++;
         }
         else // 高电平判断范围
         {
-        	Low_Bit_Count = TIM1_cnt - Low_Bit_Count_Start;
             // 判断低位数据位范围是否合法
             if (Low_Bit_Count >= MIN_BIT_DURATION && Low_Bit_Count <= MAX_BIT_DURATION)
             {
                 Low_Bit_Duration = Low_Bit_Count; // 保存计数值，用于区分0和1
                 Low_Bit_Count = 0;
                 RF_Decode_State = DATA_PROCESS; // 进入数据处理状态
-                printf("o");
             }
             else
             {
@@ -302,10 +288,6 @@ void Reset_Decode_Parameters(void)
     High_Bit_Duration = 0;
     Low_Bit_Duration = 0;
     RF_Decode_State = LEAD_CODE;
-
-    Lead_Code_Count_Start = TIM1_cnt;
-    High_Bit_Count_Start  = TIM1_cnt;
-
 }
 
 /**----------------------------------------------------------------------------------------------**
@@ -383,12 +365,13 @@ void Execute_Function(void)
 
     default:
         // 默认操作
-    	printf("\r\n --- code =%02x",Received_Buffer[FUNCTION_BYTE_INDEX]);
+    	// printf("\r\n --- code =%02x",Received_Buffer[FUNCTION_BYTE_INDEX]);
+    	printf("\r\n ADDR= %02x %02x %02x  CMD=%02x",Received_Buffer[0],Received_Buffer[1],Received_Buffer[2], 0x0F&Received_Buffer[FUNCTION_BYTE_INDEX]);
         break;
     }
 }
 
-
+#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
@@ -404,6 +387,7 @@ 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];
@@ -541,5 +525,358 @@ void STS_RF_Send_AddressBit_and_CmdBit(uint8_t *rf_payload, uint8_t rf_length)
 //	printf("ending bits ...\r\n");
 }
 
+#if 0
+/**
+  ******************************************************************************
+  * @file    bsp_irda.c
+  * @author  fire
+  * @version V1.0
+  * @date    2013-xx-xx
+  * @brief   红外遥控器接口
+  ******************************************************************************
+  * @attention
+  *
+  * 实验平台:野火 F103-指南者 STM32 开发板
+  * 论坛    :http://www.firebbs.cn
+  * 淘宝    :https://fire-stm32.taobao.com
+  *
+  ******************************************************************************
+  */
+
+//#include "./IrDa/bsp_irda.h"
+//#include "./systick/bsp_SysTick.h"
+//#include "./led/bsp_led.h"
+
+uint32_t frame_data=0;    /* 一帧数据缓存 */
+uint8_t  frame_cnt=0;
+uint8_t  frame_flag=0;    /* 一帧数据接收完成标志 */
+
+ /**
+  * @brief  配置嵌套向量中断控制器NVIC
+  * @param  无
+  * @retval 无
+  */
+static void NVIC_Configuration(void)
+{
+  NVIC_InitTypeDef NVIC_InitStructure;
+
+  /* Configure one bit for preemption priority */
+  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+
+  /* 配置P[A|B|C|D|E]11为中断源 */
+  NVIC_InitStructure.NVIC_IRQChannel = IRDA_EXTI_IRQN;
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 5;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  NVIC_Init(&NVIC_InitStructure);
+}
 
 
+/* 初始化红外接收头1838用到的IO */
+void IrDa_Init(void)
+{
+	GPIO_InitTypeDef GPIO_InitStructure;
+	EXTI_InitTypeDef EXTI_InitStructure;
+
+	/* config the extiline clock and AFIO clock */
+	RCC_APB2PeriphClockCmd(IRDA_GPIO_CLK | RCC_APB2Periph_AFIO,ENABLE);
+
+	/* config the NVIC */
+	NVIC_Configuration();
+
+	/* EXTI line gpio config */
+  GPIO_InitStructure.GPIO_Pin = IRDA_GPIO_PIN;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(IRDA_GPIO_PORT, &GPIO_InitStructure);
+
+	/* EXTI line mode config */
+  GPIO_EXTILineConfig(IRDA_GPIO_PORT_SOURCE, IRDA_GPIO_PIN_SOURCE);
+  EXTI_InitStructure.EXTI_Line = IRDA_EXTI_LINE;
+  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿中断
+  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+  EXTI_Init(&EXTI_InitStructure);
+}
+
+/* 获取高电平的时间 */
+uint8_t Get_Pulse_Time(void)
+{
+  uint8_t time = 0;
+  while( IrDa_DATA_IN() )
+  {
+    time ++;
+    Delay_us(2);     // 延时 20us
+    if(time == 250)
+      return time;   // 超时溢出
+  }
+  return time;
+}
+
+/*
+ * 帧数据有4个字节，第一个字节是遥控的ID，第二个字节是第一个字节的反码
+ * 第三个数据是遥控的真正的键值，第四个字节是第三个字节的反码
+ */
+uint8_t IrDa_Process(void)
+{
+  uint8_t first_byte, sec_byte, tir_byte, fou_byte;
+
+  first_byte = frame_data >> 24;
+  sec_byte = (frame_data>>16) & 0xff;
+  tir_byte = frame_data >> 8;
+  fou_byte = frame_data;
+
+  /* 记得清标志位 */
+  frame_flag = 0;
+
+  if( (first_byte==(uint8_t)~sec_byte) && (first_byte==IRDA_ID) )
+  {
+    if( tir_byte == (u8)~fou_byte )
+      return tir_byte;
+  }
+
+  return 0;   /* 错误返回 */
+}
+
+
+
+// IO 线中断, 接红外接收头的数据管脚
+void IRDA_EXTI_IRQHANDLER_FUN(void)
+{
+	uint8_t pulse_time = 0;
+  uint8_t leader_code_flag = 0; /* 引导码标志位，当引导码出现时，表示一帧数据开始 */
+  uint8_t irda_data = 0;        /* 数据暂存位 */
+
+  if(EXTI_GetITStatus(IRDA_EXTI_LINE) != RESET) /* 确保是否产生了EXTI Line中断 */
+	{
+    while(1)
+    {
+      if( IrDa_DATA_IN()== SET )        /* 只测量高电平的时间 */
+      {
+        pulse_time = Get_Pulse_Time();
+
+        /* >=5ms 不是有用信号 当出现干扰或者连发码时，也会break跳出while(1)循环 */
+        if( pulse_time >= 250 )
+        {
+          break; /* 跳出while(1)循环 */
+        }
+
+        if(pulse_time>=200 && pulse_time<250)         /* 获得前导位 4ms~4.5ms */
+        {
+          leader_code_flag = 1;
+        }
+        else if(pulse_time>=10 && pulse_time<50)      /* 0.56ms: 0.2ms~1ms */
+        {
+          irda_data = 0;
+        }
+        else if(pulse_time>=50 && pulse_time<100)     /* 1.68ms：1ms~2ms */
+        {
+          irda_data =1 ;
+        }
+        else if( pulse_time>=100 && pulse_time<=200 ) /* 2.1ms：2ms~4ms */
+        {/* 连发码，在第二次中断出现 */
+          frame_flag = 1;               /* 一帧数据接收完成 */
+          frame_cnt++;                  /* 按键次数加1 */
+          isr_cnt ++;                   /* 进中断一次加1 */
+          break;                        /* 跳出while(1)循环 */
+        }
+
+        if( leader_code_flag == 1 )
+        {/* 在第一次中断中完成 */
+          frame_data <<= 1;
+          frame_data += irda_data;
+          frame_cnt = 0;
+          isr_cnt = 1;
+        }
+      }
+    }// while(1)
+		EXTI_ClearITPendingBit(IRDA_EXTI_LINE);     //清除中断标志位
+    //LED2_TOGGLE;
+	}
+}
+
+
+
+
+#define CLI()      __set_PRIMASK(1)		/* 关闭总中断 */
+#define SEI() __set_PRIMASK(0)				/* 开放总中断 */
+
+extern uint8_t  frame_flag;
+extern uint8_t  isr_cnt;
+extern uint8_t  frame_cnt;
+
+/**
+  * @brief  主函数
+  * @param  无
+  * @retval 无
+  */
+int irda_main(void)
+{
+	uint8_t key_val;
+
+  /* config the led */
+	LED_GPIO_Config();
+	LED1_ON;
+
+	/* 配置SysTick 为10us中断一次 */
+	SysTick_Init();
+
+  /* 重新配置SysTick的中断优先级为最高，要不然SysTick延时中断抢占不了IO EXTI中断
+   * 因为SysTick初始化时默认配置的优先级是最低的
+   * 或者当你用其他定时器做延时的时候，要配置定时器的优先级高于IO EXTI中断的优先级
+   */
+  NVIC_SetPriority (SysTick_IRQn, 0);
+
+
+  /* USART1 config 115200 8-N-1 */
+	USART_Config();
+	printf("\r\n 这是一个红外遥控发射与接收实验 \r\n");
+
+  /* 初始化红外接收头CP1838用到的IO */
+	IrDa_Init();
+
+	for(;;)
+	{
+    if( frame_flag == 1 ) /* 一帧红外数据接收完成 */
+    {
+      key_val = IrDa_Process();
+      printf("\r\n key_val=%d \r\n",key_val);
+      printf("\r\n 按键次数frame_cnt=%d \r\n",frame_cnt);
+      printf("\r\n 中断次数isr_cnt=%d \r\n",isr_cnt);
+
+      /* 不同的遥控器面板对应不同的键值，需要实际测量 */
+      switch( key_val )
+      {
+        case 0:
+        LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n Error \r\n");
+        break;
+
+        case 162:
+        LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n POWER \r\n");
+        break;
+
+        case 226:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n MENU \r\n");
+        break;
+
+        case 34:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n TEST \r\n");
+        break;
+
+        case 2:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n + \r\n");
+        break;
+
+        case 194:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n RETURN \r\n");
+        break;
+
+        case 224:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n |<< \r\n");
+        break;
+
+        case 168:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n > \r\n");
+        break;
+
+        case 144:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n >>| \r\n");
+        break;
+
+        case 104:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 0 \r\n");
+        break;
+
+        case 152:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n - \r\n");
+        break;
+
+        case 176:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n C \r\n");
+        break;
+
+        case 48:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 1 \r\n");
+        break;
+
+        case 24:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 2 \r\n");
+        break;
+
+        case 122:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 3 \r\n");
+        break;
+
+        case 16:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 4 \r\n");
+        break;
+
+        case 56:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 5 \r\n");
+        break;
+
+        case 90:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 6 \r\n");
+        break;
+
+          case 66:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 7 \r\n");
+        break;
+
+        case 74:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 8 \r\n");
+        break;
+
+        case 82:
+          LED1_TOGGLE;
+          printf("\r\n key_val=%d \r\n",key_val);
+          printf("\r\n 9 \r\n");
+        break;
+
+        default:
+        break;
+      }
+    }
+	}
+}
+#endif
+
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index 59c5973..0079795 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -125,8 +125,8 @@ void MX_GPIO_Init(void)
 
 #if 1
   GPIO_InitStruct.Pin = RF_Receive_GPIO_Pin;
-  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING; //GPIO_MODE_INPUT; //GPIO_MODE_IT_RISING_FALLING;
-  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT; //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);
 #endif
diff --git a/Core/Src/main.c b/Core/Src/main.c
index 5eaf1b7..785bc00 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -32,7 +32,7 @@
 // #include "sts_aq_o3.h"
 /* Private typedef -----------------------------------------------------------*/
 /* USER CODE BEGIN PTD */
-TIM_HandleTypeDef htim1;
+TIM_HandleTypeDef htim1, htim2;
 //uint8_t rf_payload[3]={0xF8,0xCD,0x07}, rf_length=3;
 uint8_t rf_payload[3]={0x1F,0xB3,0xE0}, rf_length=3;	// RC_PROJECTOR
 uint8_t sos_rf_payload[3]={0x82,0x73,0xA0}, sos_rf_length=3;	// sos_button
@@ -137,10 +137,26 @@ int main(void)
 
   // 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(&htim2) != HAL_OK)
+  {
+    /* Starting Error */
+    Error_Handler();
+  }
+
 
   printf("start \r\n");
 
+  while(1)
+     {
+
+     }
+
+
   // EV1527_Init();
 
 #if 0
@@ -506,6 +522,8 @@ void Error_Handler(void)
 {
   /* USER CODE BEGIN Error_Handler_Debug */
   /* User can add his own implementation to report the HAL error return state */
+
+	  HAL_GPIO_WritePin(LED3_GPIO_Port, LED3_Pin, GPIO_PIN_SET);
   __disable_irq();
   while (1)
   {
diff --git a/Core/Src/stm32wlxx_hal_msp.c b/Core/Src/stm32wlxx_hal_msp.c
index 73369f8..5e315e3 100644
--- a/Core/Src/stm32wlxx_hal_msp.c
+++ b/Core/Src/stm32wlxx_hal_msp.c
@@ -150,35 +150,18 @@ void HAL_TIM_IC_MspDeInit(TIM_HandleTypeDef* htim_ic)
 */
 void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
 {
-  GPIO_InitTypeDef GPIO_InitStruct = {0};
-  if(htim_base->Instance==TIM1)
+
+  if(htim_base->Instance==TIM2)
   {
   /* USER CODE BEGIN TIM1_MspInit 0 */
 
   /* USER CODE END TIM1_MspInit 0 */
     /* Peripheral clock enable */
-    __HAL_RCC_TIM1_CLK_ENABLE();
+    __HAL_RCC_TIM2_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_LOW;
-    GPIO_InitStruct.Alternate = GPIO_AF1_TIM1;
-    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
-    /* TIM1 interrupt Init */
-    HAL_NVIC_SetPriority(TIM1_BRK_IRQn, 0, 0);
-    HAL_NVIC_EnableIRQ(TIM1_BRK_IRQn);
-    HAL_NVIC_SetPriority(TIM1_UP_IRQn, 0, 0);
-    HAL_NVIC_EnableIRQ(TIM1_UP_IRQn);
-    HAL_NVIC_SetPriority(TIM1_TRG_COM_IRQn, 0, 0);
-    HAL_NVIC_EnableIRQ(TIM1_TRG_COM_IRQn);
-    HAL_NVIC_SetPriority(TIM1_CC_IRQn, 0, 0);
-    HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
+      /* TIM1 interrupt Init */
+    HAL_NVIC_SetPriority(TIM2_IRQn, 3, 0);
+    HAL_NVIC_EnableIRQ(TIM2_IRQn);
   /* USER CODE BEGIN TIM1_MspInit 1 */
 
   /* USER CODE END TIM1_MspInit 1 */
@@ -194,27 +177,19 @@ void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
 */
 void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base)
 {
-  if(htim_base->Instance==TIM1)
+  if(htim_base->Instance==TIM2)
   {
-  /* USER CODE BEGIN TIM1_MspDeInit 0 */
+  /* USER CODE BEGIN TIM2_MspDeInit 0 */
 
-  /* USER CODE END TIM1_MspDeInit 0 */
+  /* USER CODE END TIM2_MspDeInit 0 */
     /* Peripheral clock disable */
-    __HAL_RCC_TIM1_CLK_DISABLE();
+    __HAL_RCC_TIM2_CLK_DISABLE();
 
-    /**TIM1 GPIO Configuration
-    PA9     ------> TIM1_CH2
-    */
-    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9);
+    /* TIM2 interrupt DeInit */
+    HAL_NVIC_DisableIRQ(TIM2_IRQn);
+  /* USER CODE BEGIN TIM2_MspDeInit 1 */
 
-    /* TIM1 interrupt DeInit */
-    HAL_NVIC_DisableIRQ(TIM1_BRK_IRQn);
-    HAL_NVIC_DisableIRQ(TIM1_UP_IRQn);
-    HAL_NVIC_DisableIRQ(TIM1_TRG_COM_IRQn);
-    HAL_NVIC_DisableIRQ(TIM1_CC_IRQn);
-  /* USER CODE BEGIN TIM1_MspDeInit 1 */
-
-  /* USER CODE END TIM1_MspDeInit 1 */
+  /* USER CODE END TIM2_MspDeInit 1 */
   }
 
 }
diff --git a/Core/Src/stm32wlxx_it.c b/Core/Src/stm32wlxx_it.c
index d732eaa..ee6d2e7 100644
--- a/Core/Src/stm32wlxx_it.c
+++ b/Core/Src/stm32wlxx_it.c
@@ -63,7 +63,7 @@ extern DMA_HandleTypeDef hdma_usart2_tx;
 extern UART_HandleTypeDef huart2;
 extern UART_HandleTypeDef huart1;
 
-extern TIM_HandleTypeDef htim1;
+extern TIM_HandleTypeDef htim1, htim2;
 
 /* USER CODE BEGIN EV */
 
@@ -197,7 +197,7 @@ void PendSV_Handler(void)
 void SysTick_Handler(void)
 {
   /* USER CODE BEGIN SysTick_IRQn 0 */
-
+	// HAL_IncTick();
   /* USER CODE END SysTick_IRQn 0 */
   /* USER CODE BEGIN SysTick_IRQn 1 */
 
@@ -459,10 +459,9 @@ void SUBGHZ_Radio_IRQHandler(void)
 }
 
 /* USER CODE BEGIN 1 */
-#if 0
+#if 1
 void TIM1_IRQHandler(void)
 {
-	TIM1_cnt++;
 	HAL_TIM_IRQHandler(&htim1);
 }
 #endif
@@ -499,4 +498,20 @@ void TIM1_IC_IRQHandler(void)
 }
 
 #endif
+
+/**
+  * @brief This function handles TIM2 Global Interrupt.
+  */
+void TIM2_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM2_IRQn 0 */
+
+  /* USER CODE END TIM2_IRQn 0 */
+  HAL_TIM_IRQHandler(&htim2);
+  /* USER CODE BEGIN TIM2_IRQn 1 */
+
+  /* USER CODE END TIM2_IRQn 1 */
+}
+
+
 /* USER CODE END 1 */
diff --git a/Core/Src/sys_app.c b/Core/Src/sys_app.c
index 1fc1cd1..aea649d 100644
--- a/Core/Src/sys_app.c
+++ b/Core/Src/sys_app.c
@@ -382,86 +382,19 @@ void HAL_Delay(__IO uint32_t Delay)
   /* USER CODE END HAL_Delay_2 */
 }
 
+
 /* USER CODE BEGIN Overload_HAL_weaks */
 /**
   * @note This function overwrites the __weak one from HAL
   */
 void HAL_Delay_Us(uint32_t uDelay)
 {
-#if 0
-	uint32_t startval, tickn, delays, wait;
-	startval = SysTick->VAL;
-	tickn = HAL_GetTick();
-	delays = uDelay * 48;
-	if (delays > startval)
-	{
-		while (HAL_GetTick() == tickn) {}
-		wait = 48000 + startval -delays;
-		while (wait < SysTick->VAL) {};
-
-	}else {
-		wait = startval - delays;
-		while(wait < SysTick->VAL && HAL_GetTick() == tickn)
-		{
-
-		}
-	}
-#endif
-#if 0
-	uint32_t g_fac_us=48;
-	uint32_t ticks;
-	uint32_t told, tnow, tcnt =0;
-	uint32_t reload = SysTick->LOAD;
-
-	ticks = uDelay * g_fac_us;
-
-	told = SysTick->VAL;
-
-	while(1)
-	{
-		tnow = SysTick->VAL;
-		if (tnow != told)
-		{
-			if (tnow < told)
-			{
-				tcnt += told -tnow;
-			} else {
-				tcnt += reload - tnow + told;
-			}
-			told = tnow;
-			if (tcnt >= ticks)
-			{
-				break;
-			}
-		}
-	}
-
-#endif
-
 
 #if 1
 	__IO uint32_t delay= uDelay*48/8;
 	do {__NOP();} while(delay --);
 #endif
-#if 0
-  /* TIMER_IF can be based on other counter the SysTick e.g. RTC */
-  /* USER CODE BEGIN HAL_Delay_1 */
-uint32_t startval, tickn, delays, wait;
-startval = SysTick->VAL;
-tickn = HAL_GetTick();
-// sysclock = 48000
-delays = uDelay*48;
-if (delays > startval)
-{
-	while(HAL_GetTick() == tickn) ;
-	wait = 48000 + startval - delays;
-	while(wait < SysTick->VAL) ;
-} else {
-	wait = startval - delays;
-	while (wait < SysTick->VAL && HAL_GetTick() == tickn) ;
-}
-  /* USER CODE END HAL_Delay_1 */
-#endif
+
   /* USER CODE BEGIN HAL_Delay_2 */
 
   /* USER CODE END HAL_Delay_2 */
diff --git a/Core/Src/tim.c b/Core/Src/tim.c
index 7e86e12..67a6b18 100644
--- a/Core/Src/tim.c
+++ b/Core/Src/tim.c
@@ -23,7 +23,7 @@
 #include "stdio.h"
 #include "ev1527.h"
 /* USER CODE BEGIN 0 */
-extern TIM_HandleTypeDef htim1;
+extern TIM_HandleTypeDef htim1, htim2;
 
 // DMA_HandleTypeDef hdma_tim1_ch1;			//PA8 WS2812B
 
@@ -89,20 +89,24 @@ void MX_TIM1_Init(void)
   htim1.Instance = TIM1;
   htim1.Init.Prescaler = TIM1_PRESCALER_VALUE;
   htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
-  htim1.Init.Period = 0xffff;	 // TIM1_PERIOD_VALUE; // 0xffff; // TIM1_PERIOD_VALUE;
+  htim1.Init.Period = TIM1_PERIOD_VALUE;	 // TIM1_PERIOD_VALUE; // 0xffff; // TIM1_PERIOD_VALUE;
   htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
   htim1.Init.RepetitionCounter = 0;
   htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
-#if 0
+#if 1
   if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
   {
     Error_Handler();
   }
 #endif
+
+#if 1
   if (HAL_TIM_IC_Init(&htim1) != HAL_OK)
   {
     Error_Handler();
   }
+#endif
+
 #if 0
   sSlaveConfig.SlaveMode = TIM_SLAVEMODE_RESET;
   sSlaveConfig.InputTrigger = TIM_TS_TI2FP2;
@@ -148,6 +152,54 @@ void MX_TIM1_Init(void)
 
 }
 
+
+
+/**
+  * @brief TIM2 Initialization Function
+  * @param None
+  * @retval None
+  */
+void MX_TIM2_Init(void)
+{
+
+  /* USER CODE BEGIN TIM2_Init 0 */
+
+  /* USER CODE END TIM2_Init 0 */
+
+  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+
+  /* USER CODE BEGIN TIM2_Init 1 */
+
+  /* USER CODE END TIM2_Init 1 */
+  htim2.Instance = TIM2;
+  htim2.Init.Prescaler = PRESCALER_VALUE;
+  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim2.Init.Period = PERIOD_VALUE;
+  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
+  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+  if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
+  if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM2_Init 2 */
+
+  /* USER CODE END TIM2_Init 2 */
+
+}
+
+
 #if 1
 
 #define	EV1527_H4			328		// NARROW PULSE WIDTH us, varies on different remote control
@@ -203,6 +255,13 @@ void EV1527Decode(uint32_t v)
 	}
 }
 
+void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
+{
+	//printf(".");
+	RF_Signal_Decode();
+
+}
+
 void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
 {
 	static uint32_t uwICValue;
@@ -214,9 +273,9 @@ void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
 	 //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
@@ -665,6 +724,21 @@ void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
 }
 #endif
 
+/* 获取高电平的时间 */
+uint8_t Get_Pulse_Time(void)
+{
+  uint8_t time = 0;
+  while( RF_Receive_Data_In() )
+  {
+    time ++;
+    HAL_Delay_Us(1);
+    if(time == 250)
+      return time;   // 超时溢出
+  }
+  return time;
+}
+
+
 
 /* USER CODE BEGIN 1 */
 
diff --git a/STM32CubeIDE/Release/WL55JC_AS923.elf b/STM32CubeIDE/Release/WL55JC_AS923.elf
index 9975a36..d80305a 100644
Binary files a/STM32CubeIDE/Release/WL55JC_AS923.elf and b/STM32CubeIDE/Release/WL55JC_AS923.elf differ