这个例和很简单就是象串口发数据。用proteus 7。10仿真通过.
以下是程序在Studio 6.2上通过:
/*
* GccApplication17.c
*
* Created: 2014-9-9 21:07:46
* Author: Administrator
*/
#include <avr/io.h>
#include "stdio.h"
#define uchar unsigned char
#define uint unsigned int
#define RXC 7
#define UDRE 5
char j,k;
void uart0_send(uchar i)
{
while(!(UCSRA&(1<<UDRE)));
UDR=i;
}
void delay_ms(uint aa)
{
for(k=0;k<aa;k++)
{
;
}
}
int main(void)
{
DDRC=0xFF;
PORTC=0xFF;
DDRD=0xFA;
PORTD=0xFF;
UCSRA=0x00;
UBRRH=0;
UBRRL=25; //系统时钟8MHz,波特率为9600bps
UCSRB=0x18;
UCSRC=0x86;
while(1)
{
uart0_send(j);
j=0x4;
delay_ms(50);
}
}
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