好像硬件设计错了。。

Core/Src/main.c

@@ -22,7 +22,7 @@
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-
+#include "my_code.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -87,6 +87,7 @@ int main(void)
   MX_GPIO_Init();
   /* USER CODE BEGIN 2 */
 
+  my_code();
   /* USER CODE END 2 */
 
   /* Infinite loop */