can通信参考例程

//#include "STC89C51_wsc.h"
#include "reg52.h"
#include "config.h"
#include "main.h"
#include "io.h"
#include "SJA1000.h"
#include "INTRINS.H" //  _nop_(); 

void Delay10ms();

u16 wsc, wsc1, wsc2 = 1, flag; //flag 1 tx 0 rx
sbit    BG = P2 ^ 5; //背景开关

typedef struct time_struct
{

    unsigned char time_miao;
    unsigned char time_fen;
    unsigned char time_shi;
} time_num;

time_num time_ture;
void time_show(void);
unsigned char time_flag;

u16 data_shift(u8 data_can);

//timer init
void initTimer(void)//5ms  11.592m
{

    TMOD = 0x0;
    TH0 = 0x70;
    TL0 = 0x19;
}

void Int1_int( void ) interrupt 0   //外部中断1
{
    //接收数据函数，在中断服务程序中调用
    receive_data();


}



//函数名称：//timer0/counter0 interrupt
//函数功能：5ms中断
//输入参数：
//输入参数：
//备注其它：
void timer0(void) interrupt 1 //5ms
{
    TH0 = 0x70;
    TL0 = 0x19;
    //add your code here.


    if(time_.time_100ms++ >= 20) //置100ms到标志
    {
        time_.time_100ms = 0;