求各位帮我看看程序 为什么直接移植原子哥的代码串口直接点执行就可以 我自己写的就要分步执行才能走起来？

yangze68

//#include "usartself.h"

#include "stm32f10x.h"

#include "stdio.h"

#include "usartself.h"

int fputc(int ch, FILE *f)

{      

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

    USART_SendData(USART1,(uint8_t)ch);   

return ch;

}

//bound:?¨????

void uart1_init(u32 bound){

    //GPIO?????è??

    GPIO_InitTypeDef GPIO_InitStructure;

USART_InitTypeDef USART_InitStructure;

NVIC_InitTypeDef NVIC_InitStructure;

 

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); //????USART1??GPIOA?±??

  USART_DeInit(USART1);  //????????1

//USART1_TX   PA.9

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9

    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //???????ì????

    GPIO_Init(GPIOA, &GPIO_InitStructure); //??????PA9

   

    //USART1_RX  A.10

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//????????

    GPIO_Init(GPIOA, &GPIO_InitStructure);  //??????PA10

   //USART ???????è??

USART_InitStructure.USART_BaudRate = bound;//??°??è????9600;

USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×??¤??8??????????

USART_InitStructure.USART_StopBits = USART_StopBits_1;//??????????

USART_InitStructure.USART_Parity = USART_Parity_No;//?????????é??

USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//???????????÷????

USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //??·?????

    USART_Init(USART1, &USART_InitStructure); //??????????

#if EN_USART1_RX  //??????????????  

   //Usart1 NVIC ????

    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//??????????3

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //×???????3

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ?¨??????

NVIC_Init(&NVIC_InitStructure); //?ù?????¨????????????VIC?????÷

   

    //USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//????????

#endif

    USART_Cmd(USART1, ENABLE);                    //???????? 

}

void Usart2_Initial()

{

//******GPIO Initial****

GPIO_InitTypeDef GPIO_InitStructure;

USART_InitTypeDef USART_InitStructure;

//***********RCC Initial

RCC_APB2PeriphClockCmd (RCC_APB2Periph_GPIOD |RCC_APB2Periph_AFIO ,ENABLE );

RCC_APB1PeriphClockCmd (RCC_APB1Periph_USART2 , ENABLE );

//******USART 1***

GPIO_PinRemapConfig (GPIO_Remap_USART2 , ENABLE); 

GPIO_InitStructure .GPIO_Mode = GPIO_Mode_AF_PP  ;

GPIO_InitStructure .GPIO_Pin = GPIO_Pin_5;

GPIO_InitStructure .GPIO_Speed = GPIO_Speed_50MHz ;

GPIO_Init (GPIOD , &GPIO_InitStructure );

GPIO_InitStructure .GPIO_Mode = GPIO_Mode_IN_FLOATING ;

GPIO_InitStructure .GPIO_Pin = GPIO_Pin_6;

GPIO_Init (GPIOD , &GPIO_InitStructure );

//**********USART Initail

USART_InitStructure .USART_BaudRate = 9600;

USART_InitStructure .USART_HardwareFlowControl = USART_HardwareFlowControl_None ;

USART_InitStructure .USART_Mode = USART_Mode_Rx |USART_Mode_Tx ;

USART_InitStructure .USART_Parity = USART_Parity_No ;

USART_InitStructure .USART_StopBits = USART_StopBits_1 ;

USART_InitStructure .USART_WordLength = USART_WordLength_8b ;

USART_Init (USART2 ,&USART_InitStructure );

USART_ITConfig (USART2,USART_IT_RXNE ,ENABLE );

USART_Cmd (USART2 , ENABLE );

}

#ifndef _USARTSELF_H_

#define _USARTSELF_H_

void uart1_init(u32 bound);

void Usart2_Initial();

int fputc(int ch, FILE *f);

#endif

yangze68

回复【楼主位】yangze68:
---------------------------------
PS:我是写了2个串口的函数 其实只算是用到串口1  串口2的函数各位可以直接忽略~

正点原子

问题描述不清，不知道什么问题。

yangze68

回复【3楼】正点原子:
---------------------------------
我意思就是 你的代码直接点一下执行那个钮 程序就直接进入循环跑起来了   而我自己写的 点一下那个执行按钮 程序不会直接跳入循环 （我也不知道是怎么回事） 然后解决方法就是乱点执行钮旁边的几个按钮 理论上说程序应该跑一部分才对 但是从串口输出来的数据看 都是正确的

正点原子

回复【4楼】yangze68:
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你下载完，不仿真（拔了JTAG,再按复位键）。你的代码可以跑么？能正常输出么？