求助帖，为啥我的写的串口不能打印汉字？

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楼主

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楼主 | 2018-6-15 17:26 | 只看该作者回帖奖励

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串口, USART, SAR, IO, pi

#include &quot;stm32f10x_rcc.h&quot; // Keil:

evice:StdPeriph Drivers:RCC

#include &quot;stm32f10x_gpio.h&quot; // Keil:

evice:StdPeriph Drivers:GPIO

#include &quot;stm32f10x_usart.h&quot; // Keil:

evice:StdPeriph Drivers:USART

#include &quot;stdio.h&quot;

int fputc(int ch, FILE *f)

{

  USART_SendData(USART1, (uint8_t) ch);

  while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);

  return (ch);

}

int main(void)

{

  USART_InitTypeDef us;

GPIO_InitTypeDef io;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|

                     RCC_APB2Periph_GPIOA,ENABLE);



io.GPIO_Mode = GPIO_Mode_AF_PP;

io.GPIO_Pin = GPIO_Pin_9;

io.GPIO_Speed= GPIO_Speed_50MHz;

GPIO_Init(GPIOA,&io);

us.USART_BaudRate = 115200;

us.USART_HardwareFlowControl =USART_HardwareFlowControl_None;

us.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;

us.USART_Parity = USART_Parity_No;

us.USART_StopBits = USART_StopBits_1;

us.USART_WordLength = USART_WordLength_8b;

USART_Init(USART1,&us);

USART_Cmd(USART1,ENABLE);

printf(&quot;ddsdfasdf&quot;);

while(1){}

  return 0;

}

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