串口发送数据，电脑上接收到的数据很奇怪

发布于 2021-08-28 22:26:43 浏览：969 订阅该版

芯片STM32F107VCT6，和提供的stm32f107-uc-eval芯片相同，就直接用了。打开了串口1，抄了简单的发送程序，如下：
```c
int main(void)
{
    int count = 100;
    /* set LED1 pin mode to output */
    rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT);
	
		char str[] = "ABC";
		static rt_device_t serial;
		struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
		config.baud_rate = BAUD_RATE_9600;        //?????? 9600
		config.data_bits = DATA_BITS_8;           //??? 8
		config.stop_bits = STOP_BITS_1;           //??? 1
		config.bit_order = BIT_ORDER_LSB;
		config.bufsz     = 128;                   //????? buff size ? 128
		config.parity    = PARITY_NONE;           //??????
	
		serial = rt_device_find(SAMPLE_UART_NAME);
		rt_device_control(serial, RT_DEVICE_CTRL_CONFIG, &config);
		rt_device_open(serial, RT_DEVICE_FLAG_INT_RX);
		if (serial)
    {
        while (count--)
			{
        rt_device_write(serial, 0, str, (sizeof(str) - 1));
				
				rt_pin_write(LED1_PIN, PIN_HIGH);
        rt_thread_mdelay(500);
        rt_pin_write(LED1_PIN, PIN_LOW);
        rt_thread_mdelay(500);
			}
			rt_device_close(serial);
    }
		else
			rt_pin_write(LED1_PIN, PIN_HIGH);

return RT_EOK;
}
```

发送的内容是“ABC”，但是电脑上的串口工具接收到的数据是：1C 00 FC E0 00 FC FC 00 FC ，不知道该如何解释这个结果？