STM32 CubeMX USB_OCO(USB_转串口)

STM32 CubeMX

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一、STM32 CubeMX 设置

USB时钟设置

USB使能

UBS功能选择

二、代码部分

添加代码

    CDC_Transmit_FS("hello MUC！！！", 15);HAL_Delay(1000);

实验效果

printf发送字符串

代码部分

添加代码

#include "stdarg.h"
/* USER CODE END INCLUDE *//* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */void usb_printf(const char *format, ...)
{va_list args;uint32_t length;va_start(args, format);length = vsnprintf((char *)UserTxBufferFS, APP_TX_DATA_SIZE, (char *)format, args);va_end(args);CDC_Transmit_FS(UserTxBufferFS, length);
}

实验效果

总结