diff --git a/.mxproject b/.mxproject
index 09ca9ab7e0d875e5e2ff924c4285048c1c3f7123..5c49be110f510fb931d113ea002fab394d3bb3e6 100644
--- a/.mxproject
+++ b/.mxproject
@@ -1,28 +1,30 @@
 [PreviousLibFiles]
-LibFiles=Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h;Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_def.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_cortex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_exti.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h;Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_def.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_cortex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_exti.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f103xe.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f1xx.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h;Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;Drivers/CMSIS/Include/cmsis_armcc.h;Drivers/CMSIS/Include/cmsis_armclang.h;Drivers/CMSIS/Include/cmsis_compiler.h;Drivers/CMSIS/Include/cmsis_gcc.h;Drivers/CMSIS/Include/cmsis_iccarm.h;Drivers/CMSIS/Include/cmsis_version.h;Drivers/CMSIS/Include/core_armv8mbl.h;Drivers/CMSIS/Include/core_armv8mml.h;Drivers/CMSIS/Include/core_cm0.h;Drivers/CMSIS/Include/core_cm0plus.h;Drivers/CMSIS/Include/core_cm1.h;Drivers/CMSIS/Include/core_cm23.h;Drivers/CMSIS/Include/core_cm3.h;Drivers/CMSIS/Include/core_cm33.h;Drivers/CMSIS/Include/core_cm4.h;Drivers/CMSIS/Include/core_cm7.h;Drivers/CMSIS/Include/core_sc000.h;Drivers/CMSIS/Include/core_sc300.h;Drivers/CMSIS/Include/mpu_armv7.h;Drivers/CMSIS/Include/mpu_armv8.h;Drivers/CMSIS/Include/tz_context.h;
+LibFiles=Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_def.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_cortex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_exti.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_tim_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_def.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_gpio_ex.h;Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_cortex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_flash_ex.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_exti.h;Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f103xe.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/stm32f1xx.h;Drivers/CMSIS/Device/ST/STM32F1xx/Include/system_stm32f1xx.h;Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;Drivers/CMSIS/Include/cmsis_armcc.h;Drivers/CMSIS/Include/cmsis_armclang.h;Drivers/CMSIS/Include/cmsis_compiler.h;Drivers/CMSIS/Include/cmsis_gcc.h;Drivers/CMSIS/Include/cmsis_iccarm.h;Drivers/CMSIS/Include/cmsis_version.h;Drivers/CMSIS/Include/core_armv8mbl.h;Drivers/CMSIS/Include/core_armv8mml.h;Drivers/CMSIS/Include/core_cm0.h;Drivers/CMSIS/Include/core_cm0plus.h;Drivers/CMSIS/Include/core_cm1.h;Drivers/CMSIS/Include/core_cm23.h;Drivers/CMSIS/Include/core_cm3.h;Drivers/CMSIS/Include/core_cm33.h;Drivers/CMSIS/Include/core_cm4.h;Drivers/CMSIS/Include/core_cm7.h;Drivers/CMSIS/Include/core_sc000.h;Drivers/CMSIS/Include/core_sc300.h;Drivers/CMSIS/Include/mpu_armv7.h;Drivers/CMSIS/Include/mpu_armv8.h;Drivers/CMSIS/Include/tz_context.h;
 
 [PreviousUsedSW4STM32Files]
-SourceFiles=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\usart.c;..\Core\Src\stm32f1xx_it.c;..\Core\Src\stm32f1xx_hal_msp.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;..\Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;..\Core\Src/system_stm32f1xx.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;..\Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;..\Core\Src/system_stm32f1xx.c;;;
+SourceFiles=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\tim.c;..\Core\Src\usart.c;..\Core\Src\stm32f1xx_it.c;..\Core\Src\stm32f1xx_hal_msp.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;..\Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;..\Core\Src/system_stm32f1xx.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c;..\Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c;..\Drivers/CMSIS/Device/ST/STM32F1xx/Source/Templates/system_stm32f1xx.c;..\Core\Src/system_stm32f1xx.c;;;
 HeaderPath=..\Drivers\STM32F1xx_HAL_Driver\Inc;..\Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;..\Drivers\CMSIS\Device\ST\STM32F1xx\Include;..\Drivers\CMSIS\Include;..\Core\Inc;
 CDefines=USE_HAL_DRIVER;STM32F103xE;USE_HAL_DRIVER;USE_HAL_DRIVER;
 
 [PreviousGenFiles]
 AdvancedFolderStructure=true
-HeaderFileListSize=5
+HeaderFileListSize=6
 HeaderFiles#0=C:/study/IOT/study/demo1_start/Core/Inc/gpio.h
-HeaderFiles#1=C:/study/IOT/study/demo1_start/Core/Inc/usart.h
-HeaderFiles#2=C:/study/IOT/study/demo1_start/Core/Inc/stm32f1xx_it.h
-HeaderFiles#3=C:/study/IOT/study/demo1_start/Core/Inc/stm32f1xx_hal_conf.h
-HeaderFiles#4=C:/study/IOT/study/demo1_start/Core/Inc/main.h
+HeaderFiles#1=C:/study/IOT/study/demo1_start/Core/Inc/tim.h
+HeaderFiles#2=C:/study/IOT/study/demo1_start/Core/Inc/usart.h
+HeaderFiles#3=C:/study/IOT/study/demo1_start/Core/Inc/stm32f1xx_it.h
+HeaderFiles#4=C:/study/IOT/study/demo1_start/Core/Inc/stm32f1xx_hal_conf.h
+HeaderFiles#5=C:/study/IOT/study/demo1_start/Core/Inc/main.h
 HeaderFolderListSize=1
 HeaderPath#0=C:/study/IOT/study/demo1_start/Core/Inc
 HeaderFiles=;
-SourceFileListSize=5
+SourceFileListSize=6
 SourceFiles#0=C:/study/IOT/study/demo1_start/Core/Src/gpio.c
-SourceFiles#1=C:/study/IOT/study/demo1_start/Core/Src/usart.c
-SourceFiles#2=C:/study/IOT/study/demo1_start/Core/Src/stm32f1xx_it.c
-SourceFiles#3=C:/study/IOT/study/demo1_start/Core/Src/stm32f1xx_hal_msp.c
-SourceFiles#4=C:/study/IOT/study/demo1_start/Core/Src/main.c
+SourceFiles#1=C:/study/IOT/study/demo1_start/Core/Src/tim.c
+SourceFiles#2=C:/study/IOT/study/demo1_start/Core/Src/usart.c
+SourceFiles#3=C:/study/IOT/study/demo1_start/Core/Src/stm32f1xx_it.c
+SourceFiles#4=C:/study/IOT/study/demo1_start/Core/Src/stm32f1xx_hal_msp.c
+SourceFiles#5=C:/study/IOT/study/demo1_start/Core/Src/main.c
 SourceFolderListSize=1
 SourcePath#0=C:/study/IOT/study/demo1_start/Core/Src
 SourceFiles=;
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index 7a0a52751f9dc2c7d26ca52e50db4e0662f10cc2..2debe43769397b289b431c824534d120d3bb4d8a 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -61,7 +61,32 @@ void Error_Handler(void);
 #define JD_PIN_Pin GPIO_PIN_11
 #define JD_PIN_GPIO_Port GPIOA
 /* USER CODE BEGIN Private defines */
+typedef void (*LoopCallBack)(void);
 
+void registerLoopCallBack(LoopCallBack loopc);
+
+/**
+ * 设置PWM脉宽
+ * @param htim ： 定时器指针
+ * @param Pulse  ： 脉宽
+ */
+inline void setPWMPulse(TIM_HandleTypeDef *htim,uint32_t Channel,uint32_t Pulse)
+{
+    switch (Channel) {
+        case TIM_CHANNEL_1:
+            htim->Instance->CCR1 = Pulse;
+            break;
+        case TIM_CHANNEL_2:
+            htim->Instance->CCR2 = Pulse;
+            break;
+        case TIM_CHANNEL_3:
+            htim->Instance->CCR3 = Pulse;
+            break;
+        case TIM_CHANNEL_4:
+            htim->Instance->CCR4 = Pulse;
+            break;
+    }
+}
 /* USER CODE END Private defines */
 
 #ifdef __cplusplus
diff --git a/Core/Inc/stm32f1xx_hal_conf.h b/Core/Inc/stm32f1xx_hal_conf.h
index 8dcdeea3a6377fc90e9775374744194450debbc6..783e80a38c11724fcf33bf0f01a75e21d43792e3 100644
--- a/Core/Inc/stm32f1xx_hal_conf.h
+++ b/Core/Inc/stm32f1xx_hal_conf.h
@@ -63,7 +63,7 @@
 /*#define HAL_SMARTCARD_MODULE_ENABLED   */
 /*#define HAL_SPI_MODULE_ENABLED   */
 /*#define HAL_SRAM_MODULE_ENABLED   */
-/*#define HAL_TIM_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */
diff --git a/Core/Inc/tim.h b/Core/Inc/tim.h
new file mode 100644
index 0000000000000000000000000000000000000000..fb62449bcb2c7a470fcb231942bb093306c504fa
--- /dev/null
+++ b/Core/Inc/tim.h
@@ -0,0 +1,56 @@
+/**
+  ******************************************************************************
+  * @file    tim.h
+  * @brief   This file contains all the function prototypes for
+  *          the tim.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2024 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __TIM_H__
+#define __TIM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern TIM_HandleTypeDef htim2;
+extern TIM_HandleTypeDef htim3;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_TIM2_Init(void);
+void MX_TIM3_Init(void);
+
+void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TIM_H__ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Core/Src/main.c b/Core/Src/main.c
index c353501795ecc39493d9c90998efb9d959bd0cdf..b3de0fab1a22b8d9cae25afb54addd66349238a0 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -19,13 +19,13 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
+#include "tim.h"
 #include "usart.h"
 #include "gpio.h"
 
-
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-#include "user/relay.h"
+#include "user/init.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -56,7 +56,22 @@ void SystemClock_Config(void);
 
 /* Private user code ---------------------------------------------------------*/
 /* USER CODE BEGIN 0 */
+#define LOOP_FUNC_SIZE 20
+
+LoopCallBack loopCallBack[LOOP_FUNC_SIZE]={NULL};
 
+/**
+ * 注册循环函数
+ * @param func ： 要循环调用的函数实体
+ */
+void registerLoopCallBack(LoopCallBack loopc){
+    for (int i = 0; i < LOOP_FUNC_SIZE; ++i) {
+        if (loopCallBack[i] == NULL) {
+            loopCallBack[i] =loopc;
+            return;
+        }
+    }
+}
 /* USER CODE END 0 */
 
 /**
@@ -88,18 +103,22 @@ int main(void)
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
   MX_USART1_UART_Init();
+  MX_TIM2_Init();
+  MX_TIM3_Init();
   /* USER CODE BEGIN 2 */
     printf("hello world!\r\n");
-    onRelay();
-    HAL_Delay(1000);
-    offRelay();
+    userInit();
   /* USER CODE END 2 */
 
   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
   while (1)
   {
-
+      for (int i = 0; i < LOOP_FUNC_SIZE; ++i) {
+          if (loopCallBack[i] != NULL) {
+              loopCallBack[i]();
+          }
+      }
     /* USER CODE END WHILE */
 
     /* USER CODE BEGIN 3 */
diff --git a/Core/Src/tim.c b/Core/Src/tim.c
new file mode 100644
index 0000000000000000000000000000000000000000..4249f5e534312c177a7bde540b2bf358d900d13d
--- /dev/null
+++ b/Core/Src/tim.c
@@ -0,0 +1,246 @@
+/**
+  ******************************************************************************
+  * @file    tim.c
+  * @brief   This file provides code for the configuration
+  *          of the TIM instances.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2024 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "tim.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+TIM_HandleTypeDef htim2;
+TIM_HandleTypeDef htim3;
+
+/* TIM2 init function */
+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};
+  TIM_OC_InitTypeDef sConfigOC = {0};
+
+  /* USER CODE BEGIN TIM2_Init 1 */
+
+  /* USER CODE END TIM2_Init 1 */
+  htim2.Instance = TIM2;
+  htim2.Init.Prescaler = 72-1;
+  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim2.Init.Period = 5000-1;
+  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();
+  }
+  if (HAL_TIM_PWM_Init(&htim2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sConfigOC.OCMode = TIM_OCMODE_PWM1;
+  sConfigOC.Pulse = 500-1;
+  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
+  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
+  if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM2_Init 2 */
+
+  /* USER CODE END TIM2_Init 2 */
+  HAL_TIM_MspPostInit(&htim2);
+
+}
+/* TIM3 init function */
+void MX_TIM3_Init(void)
+{
+
+  /* USER CODE BEGIN TIM3_Init 0 */
+
+  /* USER CODE END TIM3_Init 0 */
+
+  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+  TIM_OC_InitTypeDef sConfigOC = {0};
+
+  /* USER CODE BEGIN TIM3_Init 1 */
+
+  /* USER CODE END TIM3_Init 1 */
+  htim3.Instance = TIM3;
+  htim3.Init.Prescaler = 72-1;
+  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim3.Init.Period = 5000-1;
+  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
+  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+  if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
+  if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  if (HAL_TIM_PWM_Init(&htim3) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sConfigOC.OCMode = TIM_OCMODE_PWM1;
+  sConfigOC.Pulse = 500-1;
+  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
+  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
+  if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sConfigOC.Pulse = 100-1;
+  if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM3_Init 2 */
+
+  /* USER CODE END TIM3_Init 2 */
+  HAL_TIM_MspPostInit(&htim3);
+
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspInit 0 */
+
+  /* USER CODE END TIM2_MspInit 0 */
+    /* TIM2 clock enable */
+    __HAL_RCC_TIM2_CLK_ENABLE();
+  /* USER CODE BEGIN TIM2_MspInit 1 */
+
+  /* USER CODE END TIM2_MspInit 1 */
+  }
+  else if(tim_baseHandle->Instance==TIM3)
+  {
+  /* USER CODE BEGIN TIM3_MspInit 0 */
+
+  /* USER CODE END TIM3_MspInit 0 */
+    /* TIM3 clock enable */
+    __HAL_RCC_TIM3_CLK_ENABLE();
+  /* USER CODE BEGIN TIM3_MspInit 1 */
+
+  /* USER CODE END TIM3_MspInit 1 */
+  }
+}
+void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(timHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspPostInit 0 */
+
+  /* USER CODE END TIM2_MspPostInit 0 */
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**TIM2 GPIO Configuration
+    PA1     ------> TIM2_CH2
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_1;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN TIM2_MspPostInit 1 */
+
+  /* USER CODE END TIM2_MspPostInit 1 */
+  }
+  else if(timHandle->Instance==TIM3)
+  {
+  /* USER CODE BEGIN TIM3_MspPostInit 0 */
+
+  /* USER CODE END TIM3_MspPostInit 0 */
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**TIM3 GPIO Configuration
+    PA6     ------> TIM3_CH1
+    PA7     ------> TIM3_CH2
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN TIM3_MspPostInit 1 */
+
+  /* USER CODE END TIM3_MspPostInit 1 */
+  }
+
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspDeInit 0 */
+
+  /* USER CODE END TIM2_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM2_CLK_DISABLE();
+  /* USER CODE BEGIN TIM2_MspDeInit 1 */
+
+  /* USER CODE END TIM2_MspDeInit 1 */
+  }
+  else if(tim_baseHandle->Instance==TIM3)
+  {
+  /* USER CODE BEGIN TIM3_MspDeInit 0 */
+
+  /* USER CODE END TIM3_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM3_CLK_DISABLE();
+  /* USER CODE BEGIN TIM3_MspDeInit 1 */
+
+  /* USER CODE END TIM3_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Core/Src/user/init.c b/Core/Src/user/init.c
new file mode 100644
index 0000000000000000000000000000000000000000..4ff51481f720a7c5e7e07b7037ab8c2312b2164d
--- /dev/null
+++ b/Core/Src/user/init.c
@@ -0,0 +1,12 @@
+//
+// Created by liuyu on 2024/6/6.
+//
+
+#include "init.h"
+#include "rgb.h"
+
+
+void userInit(void)
+{
+    rgbInit();
+}
\ No newline at end of file
diff --git a/Core/Src/user/init.h b/Core/Src/user/init.h
new file mode 100644
index 0000000000000000000000000000000000000000..09cb807e1d13dc7cfb39cab0a09e7ce161446f38
--- /dev/null
+++ b/Core/Src/user/init.h
@@ -0,0 +1,8 @@
+//
+// Created by liuyu on 2024/6/6.
+//
+
+#ifndef DEMO1_START_INIT_H
+#define DEMO1_START_INIT_H
+void userInit(void);
+#endif //DEMO1_START_INIT_H
diff --git a/Core/Src/user/rgb.c b/Core/Src/user/rgb.c
new file mode 100644
index 0000000000000000000000000000000000000000..f17016993ba9376c0ad86d608794f09b7df495a9
--- /dev/null
+++ b/Core/Src/user/rgb.c
@@ -0,0 +1,58 @@
+//
+// Created by liuyu on 2024/6/5.
+//
+
+#include <stm32f1xx_hal.h>
+#include <tim.h>
+#include <stdbool.h>
+#include "rgb.h"
+
+/**
+ * 设置RGB颜色
+ * @param rPWM ： 红色的配比  0-4999
+ * @param gPWM ： 绿色的配比  0-4999
+ * @param bPWM ： 蓝色的配比  0-4999
+ */
+static void setRGBColor(uint32_t rPWM,uint32_t gPWM,uint32_t bPWM)
+{
+    setPWMPulse(&htim2,TIM_CHANNEL_2,rPWM);
+
+    setPWMPulse(&htim3,TIM_CHANNEL_1,bPWM);
+
+    setPWMPulse(&htim3,TIM_CHANNEL_2,gPWM);
+}
+
+/**
+ * 呼吸灯循环执行
+ */
+static void breathingLamp(void){
+    static uint32_t count=0;
+    static bool flag=true;
+    if (flag){
+        count=count+6;
+    } else{
+        count=count-6;
+    }
+    if (4500==count)
+    {
+        flag=false;
+    }
+    if (0==count)
+    {
+        flag=true;
+    }
+    HAL_Delay(1);
+    setRGBColor(count,count,count);
+}
+
+
+/**
+ * 初始化rgb
+ */
+void rgbInit(void)
+{
+    HAL_TIM_PWM_Start(&htim3,TIM_CHANNEL_1);
+    HAL_TIM_PWM_Start(&htim3,TIM_CHANNEL_2);
+    HAL_TIM_PWM_Start(&htim2,TIM_CHANNEL_2);
+    registerLoopCallBack(breathingLamp);
+}
diff --git a/Core/Src/user/rgb.h b/Core/Src/user/rgb.h
new file mode 100644
index 0000000000000000000000000000000000000000..feb7a2b1752fa292f38a7b07c39fac3d8469cd53
--- /dev/null
+++ b/Core/Src/user/rgb.h
@@ -0,0 +1,10 @@
+//
+// Created by liuyu on 2024/6/5.
+//
+
+#ifndef DEMO1_START_RGB_H
+#define DEMO1_START_RGB_H
+
+void rgbInit(void);
+
+#endif //DEMO1_START_RGB_H
diff --git a/demo1_start.ioc b/demo1_start.ioc
index 5ba77dff0f927483c498a1c9112e69188f1bf1e5..8ac37720a600a6566e57a919f5215649c966215d 100644
--- a/demo1_start.ioc
+++ b/demo1_start.ioc
@@ -6,19 +6,26 @@ Mcu.Family=STM32F1
 Mcu.IP0=NVIC
 Mcu.IP1=RCC
 Mcu.IP2=SYS
-Mcu.IP3=USART1
-Mcu.IPNb=4
+Mcu.IP3=TIM2
+Mcu.IP4=TIM3
+Mcu.IP5=USART1
+Mcu.IPNb=6
 Mcu.Name=STM32F103R(C-D-E)Tx
 Mcu.Package=LQFP64
 Mcu.Pin0=PD0-OSC_IN
 Mcu.Pin1=PD1-OSC_OUT
-Mcu.Pin2=PA9
-Mcu.Pin3=PA10
-Mcu.Pin4=PA11
-Mcu.Pin5=PA13
-Mcu.Pin6=PA14
-Mcu.Pin7=VP_SYS_VS_Systick
-Mcu.PinsNb=8
+Mcu.Pin10=VP_SYS_VS_Systick
+Mcu.Pin11=VP_TIM2_VS_ClockSourceINT
+Mcu.Pin12=VP_TIM3_VS_ClockSourceINT
+Mcu.Pin2=PA1
+Mcu.Pin3=PA6
+Mcu.Pin4=PA7
+Mcu.Pin5=PA9
+Mcu.Pin6=PA10
+Mcu.Pin7=PA11
+Mcu.Pin8=PA13
+Mcu.Pin9=PA14
+Mcu.PinsNb=13
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32F103RCTx
@@ -35,6 +42,8 @@ NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
 NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false
 NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false
+PA1.Locked=true
+PA1.Signal=S_TIM2_CH2
 PA10.Mode=Asynchronous
 PA10.Signal=USART1_RX
 PA11.GPIOParameters=GPIO_Label
@@ -45,6 +54,10 @@ PA13.Mode=Serial_Wire
 PA13.Signal=SYS_JTMS-SWDIO
 PA14.Mode=Serial_Wire
 PA14.Signal=SYS_JTCK-SWCLK
+PA6.Locked=true
+PA6.Signal=S_TIM3_CH1
+PA7.Locked=true
+PA7.Signal=S_TIM3_CH2
 PA9.Mode=Asynchronous
 PA9.Signal=USART1_TX
 PD0-OSC_IN.Mode=HSE-External-Oscillator
@@ -105,8 +118,30 @@ RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
 RCC.TimSysFreq_Value=72000000
 RCC.USBFreq_Value=72000000
 RCC.VCOOutput2Freq_Value=8000000
+SH.S_TIM2_CH2.0=TIM2_CH2,PWM Generation2 CH2
+SH.S_TIM2_CH2.ConfNb=1
+SH.S_TIM3_CH1.0=TIM3_CH1,PWM Generation1 CH1
+SH.S_TIM3_CH1.ConfNb=1
+SH.S_TIM3_CH2.0=TIM3_CH2,PWM Generation2 CH2
+SH.S_TIM3_CH2.ConfNb=1
+TIM2.Channel-PWM\ Generation2\ CH2=TIM_CHANNEL_2
+TIM2.IPParameters=Channel-PWM Generation2 CH2,Prescaler,Period,Pulse-PWM Generation2 CH2
+TIM2.Period=5000-1
+TIM2.Prescaler=72-1
+TIM2.Pulse-PWM\ Generation2\ CH2=500-1
+TIM3.Channel-PWM\ Generation1\ CH1=TIM_CHANNEL_1
+TIM3.Channel-PWM\ Generation2\ CH2=TIM_CHANNEL_2
+TIM3.IPParameters=Channel-PWM Generation1 CH1,Channel-PWM Generation2 CH2,Prescaler,Period,Pulse-PWM Generation1 CH1,Pulse-PWM Generation2 CH2
+TIM3.Period=5000-1
+TIM3.Prescaler=72-1
+TIM3.Pulse-PWM\ Generation1\ CH1=500-1
+TIM3.Pulse-PWM\ Generation2\ CH2=100-1
 USART1.IPParameters=VirtualMode
 USART1.VirtualMode=VM_ASYNC
 VP_SYS_VS_Systick.Mode=SysTick
 VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+VP_TIM2_VS_ClockSourceINT.Mode=Internal
+VP_TIM2_VS_ClockSourceINT.Signal=TIM2_VS_ClockSourceINT
+VP_TIM3_VS_ClockSourceINT.Mode=Internal
+VP_TIM3_VS_ClockSourceINT.Signal=TIM3_VS_ClockSourceINT
 board=custom