slave.c

来自「周界报警的报警控制程序,采用89C52芯片,KEIL 51开发!」· C语言 代码 · 共 39 行

/*-----------------------------------------------------------------------------------------
            04-10-24 modified ysd transfer data bug and add shortdelay() function
 ------------------------------------------------------------------------------------------*/

#include "reg52.h"
#include "main.h"

extern unsigned char data R_count;
extern unsigned char data data1;
extern void delay1ms(unsigned char  count);
extern void send_char_com(unsigned char ch);

void slave(void)
{
 unsigned int i=0;
 unsigned char tbuf[8];
 RT_CON=1;
 delay1ms(1);
 tbuf[0]=0x2a;
 tbuf[1]=0x06;
 tbuf[2]=0x01;
 tbuf[3]=0x00;
 tbuf[4]=0xb0;
 tbuf[5]=data1;
 tbuf[6]=~P0;
 tbuf[7]=tbuf[0]+tbuf[1]+tbuf[2]+tbuf[3]+tbuf[4]+tbuf[5]+tbuf[6];
    	do
	{         
		send_char_com(tbuf[i]);
	//	delay1ms();
		i++;
	} while(i <8 );
 RT_CON=0;
 }