main.c

单片机与DSP通信源程序

#include "52init.h"
#include "iic.h"
#include "inittable.h"
sfr P4    = 0xE8;
sbit Blank=P2^0;
sbit Rst7194=P0^4;
sbit Rst4221=P0^5;

void tdelay(uchar delay_num)  //22.1184 the loop time is 0.543us
   {
    uchar i,k;                //delay_num 0.1ms/num
    for(i=delay_num;i>0;i--)
     {
      for(k=100;k>0;k--)
       {;}
      }
    }
void Rst7194D(void)
   {
      Rst7194=0;
      tdelay(5);
      Rst7194=1;
     }
void Rst4221D(void)
   {
      Rst4221=0;
      tdelay(5);
      Rst4221=1;
     }
void initsaa7194int(void)
    {
	 uchar i;
	 for(i=0;i<54;i++)
	  {
       saa7194wr(i,table7194int[i]); /*ADV7194 Internal Mode*/
	   }
	 }
main(void)
 {
  Blank=1;
  tdelay(255);
  tdelay(255);
  tdelay(255);
  tdelay(255);
  tdelay(255);
  tdelay(255);
  Rst4221D();
  iic4221wrb(0x00,0x00);
  iic4221wrb(0x01,0x00);
  iic4221wrb(0x02,0x4a);
  iic4221wrb(0x03,0x00);
  iic4221wrb(0x04,0x00);
  iic4221wrb(0x05,0x65);
  Rst7194D();
  initsaa7194int();
  while(1);
  }