adf7012.c

ADF7012频谱信号仪研究的单片机源程序

#include"AT89X51.H"
#include"lcd1602.h"
#define  uchar unsigned  char
sbit ACC7=ACC^7;
uchar msg[]="MOD：FKSK  F：915M";
uchar  code
dat_1[]={0x00,0x40,0x21,0xfc}, //R Register
dat_2[]={0x00,0x00,0x00,0x09}, //N-Counter Latch
dat_3[]={0x00,0x00,0x00,0x32}, //Modulation Register
dat_4[]={0x00,0x27,0x03,0x9f}; //Function Register
sbit clk=P1^3;
sbit dat=P1^4;
sbit le=P1^6;
sbit txdata=P1^0;
void write_reg(uchar *dat1);

void main(void)  //主程序
{
 uchar i;
 lcd_init();
 for(i=0;i++;i<15)
 {
   write_lcd_char(0,i,msg[i]);
 }
 le=1; 
 dat=1;
 clk=0; //初始化7012
 write_reg(dat_1); //写R Register
 write_reg(dat_2); //写N-Counter Latch
 write_reg(dat_3); //写Modulation Register
 write_reg(dat_4); //写Function Register
 IT0=1;
 IE0=0;
 EX0=1;
 EA=1;
 while(1);
}

void interrupt_ex0(void) interrupt 0   //外部0号中断
{
  txdata=~txdata;
}

void write_reg(uchar *dat1)    //写ADF7012
{
  uchar i,j;
  le=0;
  for(j=0;j++;j<4) //写4个8位数--共32位
  {
   ACC=dat1[j];	
   for(i=0;i++;i<7)
   { 
    dat=ACC7;
    ACC=ACC<<1;
    clk=1;
	 clk=0;
   }
  }
  le=1;
}