main.c

来自「bootloader」· C语言 代码 · 共 104 行

head	1.1;
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	ICCAVR:1.1; strict;
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1.1
date	2006.11.14.14.10.17;	author ICCAVR;	state Exp;
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1.1
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@Initial revision
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text
@//ICC-AVR application builder : 2006-11-11 12:55:39
// Target : M16
// Crystal: 7.3728Mhz

#include "config.h"

void port_init(void)
{
 PORTA = 0x03;
 DDRA  = 0x03;
 PORTB = 0x00;
 DDRB  = 0x00;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0x00;
 DDRD  = 0x00;
}

//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();

 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x00; //timer interrupt sources
 Com_init();  //串行口初始化
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

void Delay(void)  //软件延时
{
 unsigned char i,j;
  for(i=200;i>0;i--)
   {
   	for(j=200;j>0;j--)
	;
	for(j=200;j>0;j--)
	;
   }
}

void main(void)
{
  uint8 SIO_buff[4];  //定义串口数据缓冲区
  init_devices();
  //指示单片机正常开始工作，一亮，二亮，都亮，都灭
  PORTA = 0x02;       //1脚为高，0脚为低，0脚灯亮
  Delay();           //延时
  PORTA = 0x01;	     //0脚为高，1脚为低，1脚灯亮
  Delay();           //延时
  PORTA = 0x00;      //同时亮
  Delay();           //延时
  PORTA = 0x03;      //同时灭
  
  Com_putstring ("ww",2,&RTbuf_UART0); //输出一个字符串到串行口

  while(1)
  {
   if(Com_R_count(&RTbuf_UART0)!=0)
     {
	     Com_getstring (SIO_buff,1,&RTbuf_UART0);
		 Com_Rbuf_Clear(&RTbuf_UART0); //清空buffer
		 if(SIO_buff[0]==1)  //接收到一个一
		 {
		    Com_putstring ("ok!!",4,&RTbuf_UART0); //输出一个字符串到串行口
		    PORTA = 0x00;      //同时亮
			Delay();           //延时
			PORTA = 0x03;      //同时灭
		 }
     } //end of if(Com_R_count(&RTbuf_UART0)!=0)
   Delay();//延时
   Com_putstring ("ww00",4,&RTbuf_UART0); //输出一个字符串到串行口
  }
}
@