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STM32 定时器2+串口

时间:11-09 来源:互联网 点击:
定时器2+串口发送

USART.c

#include "STM32Lib\\stm32f10x.h"
/**********************************************
**串口配置函数,这里使能了两个串口,其中串口2使用了中断接收模式
**
**********************************************/
u8 Uart1_Get_Flag; //串口1接收到数据标志
u8 Uart1_Get_Data; //串口1接收的数据

void USART_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;

//使能串口1,PA,AFIO总线
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |
RCC_APB2Periph_AFIO |
RCC_APB2Periph_USART1 ,
ENABLE);

/* A9 USART1_Tx */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推挽输出-TX
GPIO_Init(GPIOA, &GPIO_InitStructure);

/* A10 USART1_Rx */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入-RX
GPIO_Init(GPIOA, &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_ClockInitStructure.USART_Clock = USART_Clock_Disable;
USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;

USART_ClockInit(USART1, &USART_ClockInitStructure);
USART_Init(USART1, &USART_InitStructure);
/* Enable the USARTx */
USART_Cmd(USART1, ENABLE);
//串口1使用接收中断
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);

//使能串口2时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);

// A2 做T2X
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);

// A3 做R2X
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &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_ClockInitStructure.USART_Clock = USART_Clock_Disable;
USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;

USART_ClockInit(USART2, &USART_ClockInitStructure);
USART_Init(USART2, &USART_InitStructure);

USART_Cmd(USART2, ENABLE);
//串口2使用接收中断
USART_ITConfig(USART2,USART_IT_RXNE,ENABLE);
}

void USART1_Putc(unsigned char c)
{
USART_SendData(USART1, c);
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET );
}

void USART1_Puts(char * str)
{
while(*str)
{
USART_SendData(USART1, *str++);
/* Loop until the end of transmission */
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
}
}

void USART2_Putc(unsigned char c)
{
USART_SendData(USART2, c);
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET );
}

void USART2_Puts(char * str)
{
while(*str)
{
USART_SendData(USART2, *str++);
/* Loop until the end of transmission */
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET);
}

}

hal.h

#ifndef HAL_H
#define HAL_H

//硬件初始化
extern void ChipHalInit(void);
extern void ChipOutHalInit(void);

//输出宏定义
//清零
#define

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