LED2_PIN);/* Insert delay 100 ms */HAL_Delay(100);HAL_GPIO_TogglePin(LED3_GPIO_PORT, LED3_PIN);/* Insert delay 100 ms */HAL_Delay(100);HAL_GPIO_TogglePin(LED4_GPIO_PORT, LED4_PIN);/* Insert delay 100 ms */HAL_Delay(100); ...
http://www.stmcu.org.cn/module/forum/thread-616613-1-1.html 看到大家经常写一些关于串口的问题...