频率扫描.c

温度采集显示与PID控制

#include"w77e58.h"
#include"intrins.h"
#include<math.h>

#define uchar unsigned char
#define uint unsigned int

#define ac 0x10
#define bc 0x12
  



sbit l1=P1^4;//发射频率锁定
sbit l2=P1^3;//接收锁定
sbit l3=P1^2;//增益stc锁定
sbit plsx=P1^6; //锁相环检测
sbit sclk=P1^0;//发射控制
sbit fstd=P1^5;
extern void glset1();
extern void sdset1();
void datey2(uint p);
extern void yasue();//数据压缩成500个数

extern bit i2c_write(uchar address,uint fb);
//*********************************//
extern void qdtime2();//启动time2
extern uchar data stc;//stc等级1－8级
extern uchar data zenyi;//增益1-9级
extern uchar data accd;
extern uchar data bccd;
extern uchar data fstde;//发射探头 0＝无,0x01=有
extern bit adc;//A/D采集完标志
extern uint data dgk;
extern bit er;
//extern uchar data zaibao;//消除杂波
extern uchar xdata yssu[300];//压缩后数据

extern void stoptime2();




uint zdpek(); //判断最大值
 void plsm();


 void plsm()
{
 
 uchar j;
 int i;
 char o;
 uint jsple;//接收频率缓存