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USART 的代码
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.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
#include
#include
#define BAUDRATE 172800 //波特率
unsigned char USART_dat_send[13]={0xf0,0xf0};
volatile unsigned char USART_dat_rev[11];
unsigned char *USART_dat=US
usart.h
void USART_int();
void USART_send_dat(unsigned char *dat,unsigned char lng);
void USART_rev();
void USART_send_c(unsigned char c);
extern unsigned char USART_dat_send[13];
extern volatile unsig