希望有谁能指点一下，给个大概方向也好
#include "stm32f10x.h"
#include"stdio.h"
  GPIO_InitTypeDef GPIO_InitStructure;
  USART_InitTypeDef USART_InitStructure;

void delay_ms(u16 nms)
{
  u32 temp;
        SysTick->LOAD=(u32)nms*8;
        SysTick->VAL=0x00;
        SysTick->CTRL=0x01;
        do
        {
    temp=SysTick->CTRL;
  }
        while(temp&0x01&&!(temp&(1<<16)));
        SysTick->CTRL=0X00;
        SysTick->VAL=0X00;       
}
int main(void)
{
       
        RCC_HSEConfig(RCC_HSE_ON);
        RCC_SYSCLKConfig( RCC_SYSCLKSource_HSE);
        RCC_PCLK2Config(RCC_HCLK_Div1);

        /* config USART1 clock */
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC, ENABLE);

        /* USART1 GPIO config */
   /* Configure USART1 Tx (PA.09) as alternate function push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);   
  /* Configure USART1 Rx (PA.10) as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);       
        USART_InitStructure.USART_BaudRate = 115200;  
        USART_InitStructure.USART_WordLength = USART_WordLength_8b;
        USART_InitStructure.USART_StopBits = USART_StopBits_1;
        USART_InitStructure.USART_Parity = USART_Parity_No ;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
        USART_Init(USART1, &USART_InitStructure);
  USART_Cmd(USART1, ENABLE);
  while (1)
  {
        printf("The mcu is ok ");
    delay_ms(0xffff);
        delay_ms(0xffff);       
          delay_ms(0xffff);
    delay_ms(0xffff);
                            
  }
}
/*
* 函数名：fputc
* 描述  ：重定向c库函数printf到USART1
* 输入  ：无
* 输出  ：无
* 调用  ：由printf调用
*/
int fputc(int ch, FILE *f)
{
/* 将Printf内容发往串口 */
  USART_SendData(USART1, (unsigned char) ch);
  while (!(USART1->SR & USART_FLAG_TXE));

  return (ch);
} 此帖出自小平头技术问答