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USART 的代码
usart.h
/*This file has been prepared for Doxygen automatic documentation generation.*/
/*! \file *********************************************************************
*
* \brief USART driver library.
*
*
usart.c
/*This file has been prepared for Doxygen automatic documentation generation.*/
/*! \file *********************************************************************
*
* \brief USART driver library.
*
*
usart.h
//波特率9600/9个数据位/1个停止位/奇校验/收发开启/接收中断
void usart_init(void)
{
UCSRA=0x01;
UCSRB=0x9C;
UCSRC=0xB6;
UBRRH=0x00;
UBRRL=0x2f;
PORTD&=~0x08; //MAX485平时工作在接收状态
DDRD|=0x08;
}
//------
usart.h
#define BAUDRATE 9600 //波特率
#define F_CPU 7327800
//波特率9600/9个数据位/1个停止位/奇校验/收发开启/接收中断
void usart_init(void)
{
UCSRA=0x01;//多机通讯模式(MPCM=1)
UCSRB=0x9C;
UCSRC=0xB6;
UBRRL=
usart._h
#define BAUDRATE 9600 //波特率
#define F_CPU 7327800
unsigned char send[amount]; //发件箱
unsigned char inbox[amount]; //收件箱
unsigned char n=0; //记忆中断次数
unsigned char flag_me=0;
unsig
usart.h
//波特率9600/9个数据位/1个停止位/奇校验/收发开启/接收中断
void usart_init(void)
{
UCSRA=0x01;
UCSRB=0x9C;
UCSRC=0xB6;
UBRRH=0x00;
UBRRL=0x2f;
PORTD&=~0x08; //MAX485平时工作在接收状态
DDRD|=0x08;
}
//------
usart.c
#define USART_C
#include "includes.h"
int usart_putchar(char c)
{
if (c == '\n')
usart_putchar('\r');
while(UCSRA&(1
usart.opt
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
usart.c
/*----------------------------------------------------------------------------
* Name: Usart.c
* Purpose: USART usage for STM32
* Version: V1.00
*-------------------------------------------
usart.h
//波特率9600/9个数据位/1个停止位/奇校验/收发开启/接收中断
void usart_init(void)
{
UCSRA=0x01;
UCSRB=0x9C;
UCSRC=0xB6;
UBRRH=0x00;
UBRRL=0x2f;
PORTD&=~0x08; //MAX485平时工作在接收状态
DDRD|=0x08;
}
//------