添加串口操作类

Core/Src/main.c

@@ -19,6 +19,7 @@
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
 #include "memorymap.h"
+#include "tim.h"
 #include "gpio.h"
 
 /* Private includes ----------------------------------------------------------*/
@@ -57,7 +58,7 @@ void SystemClock_Config(void);
 
 /* Private user code ---------------------------------------------------------*/
 /* USER CODE BEGIN 0 */
-
+extern void AppStart(void);
 /* USER CODE END 0 */
 
 /**
@@ -89,6 +90,7 @@ int main(void)
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
+  MX_TIM7_Init();
   /* USER CODE BEGIN 2 */
 
   /* USER CODE END 2 */
@@ -114,6 +116,7 @@ int main(void)
 
   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
+  AppStart();
   while (1)
   {