ST意法半导体中文论坛哪位大侠用过F103ZE的UART4或者5啊，总是调不通

nuqililove 发表于 2014-4-13 17:28:29

哪位大侠用过F103ZE的UART4或者5啊，总是调不通

代码如下,用的串口5
上电后自己先发一个0x55出去，以后收到数据回一个0xAA
void GPIO_Configuration(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5,ENABLE);
//TX
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
   GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2; //管脚位置定义
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING; //浮空输入 IN_FLOATING
GPIO_Init(GPIOD,&GPIO_InitStructure); //C组GPIO初始化
}

void NVIC_Configuration(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);//1 也试过了
NVIC_InitStructure.NVIC_IRQChannel = UART5_IRQn; //通道设置为串口1中断
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //中断响应优先级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //打开中断
NVIC_Init(&NVIC_InitStructure); //初始化
}

void UART5_Init(void)
{
USART_InitStructure.USART_BaudRate = 9600; //波特率9600
USART_InitStructure.USART_WordLength = USART_WordLength_8b; //字长8位
USART_InitStructure.USART_StopBits = USART_StopBits_1; //1位停止字节
USART_InitStructure.USART_Parity = USART_Parity_No; //无奇偶校验
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; //无流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //打开Rx接收和Tx发送功能
USART_Init(UART5, &USART_InitStructure); //初始化

USART_ClearFlag(UART5, USART_FLAG_RXNE); // 清标志
USART_ITConfig(UART5, USART_IT_RXNE, ENABLE); // 若接收数据寄存器满，则产生中断
// USART_ITConfig(UART5, USART_IT_TXE, ENABLE);

USART_Cmd(UART5, ENABLE); //启动串口

}

void UART5_IRQHandler(void)
{
if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET)
{
   while (!(UART5->SR & USART_FLAG_RXNE));
UART5->DR = (0XAA & (uint16_t)0x01FF);

USART_ITConfig(UART5, USART_IT_TXE, DISABLE);

}

if(USART_GetITStatus(UART5, USART_IT_TXE) != RESET)
{
   while (!(UART5->SR & USART_FLAG_TXE));
UART5->DR = (0X55 & (uint16_t)0x01FF);

USART_ITConfig(UART5, USART_IT_TXE, DISABLE);

}
}

main函数就比较简单了
GPIO_Configuration();
NVIC_Configuration();
UART5_Init();

USART_ITConfig(UART5, USART_IT_TXE, ENABLE);
while(1);

nuqililove 发表于 2014-4-13 17:29:52

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RCC_APB2Periph_AFIO开不开都不行

那片清茶 发表于 2014-4-14 08:20:26

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

中断会不会进来？

dzc2001 发表于 2014-4-14 08:39:14

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

有没有从网上找个现成的代码试试

buxinshan 发表于 2014-4-14 09:00:26

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

你先实现普通模式的串口发送和接收，先别使用中断。
我这有UART4和UART5的
//==========我是分隔符=========
#include "stm32f10x.h"

/*******************************************************************************
* Function Name: USART_Configuration
* Description : Configure UART4
* Input       : None
* Output       : None
* Return       : None
* Attention : None
*******************************************************************************/
void UART4_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC ,ENABLE);
RCC_APB1PeriphClockCmd( RCC_APB1Periph_UART4 ,ENABLE);

/*
*UART4_TX -> PC10 , UART4_RX -> PC11
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &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(UART4, &USART_InitStructure);
USART_ClearFlag(UART4,USART_FLAG_TC);
//USART_ITConfig(UART4, USART_IT_RXNE, ENABLE);
USART_Cmd(UART4, ENABLE);
}
/*----------------------------------------------------------------------------
*    sendchar:Write a character to Serial Port
*---------------------------------------------------------------------------*/
int sendchar (int ch) {
if (ch == '\n'){
while (!(UART4->SR & 0x0080));
UART4->DR = 0x0D;
}
while (!(UART4->SR & 0x0080));
UART4->DR = (ch & 0xFF);
return (ch);
}
/*----------------------------------------------------------------------------
*    getkey:Read a character from Serial Port
*---------------------------------------------------------------------------*/
int getkey (void) {
while (!(UART4->SR & 0x0020));
return (UART4->DR);
}

//==========我是分隔符=========
/*******************************************************************************
* Function Name: USART_Configuration
* Description : Configure UART5
* Input       : None
* Output       : None
* Return       : None
* Attention : None
*******************************************************************************/
void UART5_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD ,ENABLE);
RCC_APB1PeriphClockCmd( RCC_APB1Periph_UART5 ,ENABLE);

/*
*UART5_TX -> PC12 , UART5_RX -> PD2
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600;
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(UART5, &USART_InitStructure);
USART_ClearFlag(UART5,USART_FLAG_TC);
//USART_ITConfig(UART5, USART_IT_RXNE, ENABLE);
USART_Cmd(UART5, ENABLE);
}

有缘于你 发表于 2014-4-14 10:45:02

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

void UART5_IRQHandler(void)
{
if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET)
{
   while (!(UART5->SR & USART_FLAG_RXNE));
   UART5->DR = (0XAA & (uint16_t)0x01FF);

USART_ITConfig(UART5, USART_IT_TXE, DISABLE);

}

if(USART_GetITStatus(UART5, USART_IT_TXE) != RESET)
{
   while (!(UART5->SR & USART_FLAG_TXE));
   UART5->DR = (0X55 & (uint16_t)0x01FF);

USART_ITConfig(UART5, USART_IT_TXE, DISABLE);

}
}
USART_ITConfig(UART5, USART_IT_TXE, DISABLE); 禁用了中断...而且没有清除接收中断标志吧

Eagleson 发表于 2014-4-14 14:01:13

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

http://www.openedv.com/posts/list/0/526.htm?fromAll=0
原子哥的例子

nuqililove 发表于 2014-4-14 21:58:58

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复第 3 楼于2014-04-14 08:20:26发表:
中断会不会进来？

可以进发送中断，但是UART5->DR（寄存器0x4000 5004）的数据没有变化

nuqililove 发表于 2014-4-14 22:00:40

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复第 5 楼于2014-04-14 09:00:26发表:
你先实现普通模式的串口发送和接收，先别使用中断。
我这有UART4和UART5的
//==========我是分隔符=========
#include "stm32f10x.h"

/*******************************************************************************
* Function Name: USART_Configuration
* Description : Configure UART4
* Input       : None
* Output       : None
* Return       : None
* Attention : None
*******************************************************************************/
void UART4_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC ,ENABLE);
RCC_APB1PeriphClockCmd( RCC_APB1Periph_UART4 ,ENABLE);

/*
*UART4_TX -> PC10 , UART4_RX -> PC11
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &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(UART4, &USART_InitStructure);
USART_ClearFlag(UART4,USART_FLAG_TC);
//USART_ITConfig(UART4, USART_IT_RXNE, ENABLE);
USART_Cmd(UART4, ENABLE);
}
/*----------------------------------------------------------------------------
*    sendchar:Write a character to Serial Port
*---------------------------------------------------------------------------*/
int sendchar (int ch) {
if (ch == '\n'){
while (!(UART4->SR & 0x0080));
UART4->DR = 0x0D;
}
while (!(UART4->SR & 0x0080));
UART4->DR = (ch & 0xFF);
return (ch);
}
/*----------------------------------------------------------------------------
*    getkey:Read a character from Serial Port
*---------------------------------------------------------------------------*/
int getkey (void) {
while (!(UART4->SR & 0x0020));
return (UART4->DR);
}

//==========我是分隔符=========
/*******************************************************************************
* Function Name: USART_Configuration
* Description : Configure UART5
* Input       : None
* Output       : None
* Return       : None
* Attention : None
*******************************************************************************/
void UART5_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD ,ENABLE);
RCC_APB1PeriphClockCmd( RCC_APB1Periph_UART5 ,ENABLE);

/*
*UART5_TX -> PC12 , UART5_RX -> PD2
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600;
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(UART5, &USART_InitStructure);
USART_ClearFlag(UART5,USART_FLAG_TC);
//USART_ITConfig(UART5, USART_IT_RXNE, ENABLE);
USART_Cmd(UART5, ENABLE);
}

用你的试了，直接不停发数据，电脑的串口助手也没有数据啊:o

nuqililove 发表于 2014-4-14 23:40:40

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

附上电路图

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哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

RE:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通

回复:哪位大侠用过F103ZE的UART4或者5啊，总是调不通