初始化.c

倒车雷达源代码

#include <reg51.h>
#include "mtv230m.h"
#include <intrins.h>

unsigned int xdata bojina;//近距离报警区
unsigned int xdata bojinb;//中距离报警
unsigned int xdata bojinc;//远距离
char xdata video;//视频切换
unsigned char xdata englishchina;//中英切换
unsigned char xdata bright;//亮度
unsigned char xdata contrast;//对比度
unsigned char xdata color;//彩色
unsigned char xdata blue;//兰屏
unsigned char xdata power;//电源自动光机
char xdata p_n;//P/N
unsigned char xdata x;//x
unsigned char xdata y;//y
unsigned char xdata vol;//音量

/************************************************************/
//芯片配置
unsigned char bdata padmoda;
unsigned char bdata padmodb;
unsigned char bdata padmodc;
unsigned char bdata padmodd;
unsigned char bdata optiona;
sbit HIICE=padmoda^7;
 sbit IIICE=padmoda^6;
 sbit HVE=padmoda^5;
 sbit HclpE=padmoda^4;
 sbit FclkE=padmoda^1;
 sbit P62E=padmoda^0;
 
sbit DA3E=padmodb^7;
sbit DA2E=padmodb^6;
sbit DA1E=padmodb^5;
sbit DA0E=padmodb^4;
 
sbit AD3E=padmodb^3;
sbit AD2E=padmodb^2;
sbit AD1E=padmodb^1;      
 sbit AD0E=padmodb^0;  
 
 sbit P47oe=padmodc^7;   
 sbit P46oe=padmodc^6;   
 sbit P45oe=padmodc^5;   
 sbit P44oe=padmodc^4;   
 sbit P43oe=padmodc^3;   
 sbit P42oe=padmodc^2;   
 sbit P41oe=padmodc^1;   
 sbit P40oe=padmodc^0;
 
 sbit P57oe=padmodd^7;   
 sbit P56oe=padmodd^6;   
 sbit P55oe=padmodd^5;   
 sbit P54oe=padmodd^4;   
 sbit P53oe=padmodd^3;   
 sbit P52oe=padmodd^2;   
 sbit P51oe=padmodd^1;   
 sbit P50oe=padmodd^0;   
 
 sbit PWMF=optiona^7;   
 sbit DIV253=optiona^6;   
 sbit SivAbs1=optiona^5;   
 sbit SivAbs0=optiona^4;   
 sbit ENSCL=optiona^3;   
 sbit Msel=optiona^2;   
 sbit MIICF1=optiona^1;   
 sbit MIICF0=optiona^0;   

/****************************************************/
sbit clk1=P1^7;
sbit clk2=P3^5;

//I2c地址
#define bojin_a 0x12//近距离报警区
#define bojin_b 0x15//中距离
#define bojin_c 0x1a//远距离
#define video_1  0x1e//视频切换
#define english_china 0x20//中英切换
#define bright_04 0x22//亮度
#define contrast_04 0x24//对比度
#define color_04 0x26//彩色
#define blue_04 0x28//兰屏ON-OFF
#define power_04 0x2a//电源自动开关
#define color_p_n 0x2c//P/N
#define x_04 0x2e//X旋转
#define y_04 0x30//Y旋转
#define vol_04 0x32//音量
void osd_pz();
void time_asd();
void read_24c02();
void datey(unsigned int p);
extern unsigned int i2c_read(unsigned char address);

/*************/
//配置芯片
void osd_pz()
{
 
  HIICE=0;
  IIICE=0;
  HVE=0;
  HclpE=0;
  FclkE=1;
  P62E=0;
 
  DA3E=1;
  DA2E=1;
  DA1E=1;
  DA0E=1;
 
  AD3E=1;
  AD2E=1;
  AD1E=1;      
  AD0E=1;  
 
  P47oe=1;   
  P46oe=1;   
  P45oe=1;   
  P44oe=0;   
  P43oe=1;   
  P42oe=1;   
  P41oe=0;   
  P40oe=0;
 
  P57oe=1;   
  P56oe=1;   
  P55oe=1;   
  P54oe=1;   
  P53oe=0;   
  P52oe=0;   
  P51oe=0;   
  P50oe=0;   
 
   PWMF=0;   
   DIV253=0;   
   SivAbs1=0;   
   SivAbs0=0;   
   ENSCL=0;   
   Msel=0;   
   MIICF1=0;   
   MIICF0=0;  
   PADMOD1=padmoda;
   PADMOD2=padmodb;
   PADMOD3=padmodc;
   PADMOD4=padmodd;
   OPTION=optiona;

}
void time_asd()
 {
 P43=1;P44=1;
 SCON=0;   
   clk1=0;clk2=0;
   WDT=0x47;
     TMOD=0x26;//T1计时,T0计数,T0作遥控
     TH0=0x00;
     TL0=0x00;
      ET0=1;  
      EA=1; 
      IT0=1;
      TR0=1;//启动遥控
    
     
      
}  
void read_24c02()
{
bojina=i2c_read(bojin_a);
bojinb=i2c_read(bojin_b);
bojinc=i2c_read(bojin_c);
video=i2c_read(video_1);
englishchina=i2c_read(english_china);
bright=i2c_read(bright_04);
contrast=i2c_read(contrast_04);
color=i2c_read(color_04);
blue=i2c_read(blue_04);
power=i2c_read(power_04);
p_n=i2c_read(color_p_n);
x=i2c_read(x_04);
y=i2c_read(y_04);
vol=i2c_read(vol_04);
}

void datey(unsigned int p)
{
   unsigned int i;
for(i=0;i<=p;i++)
    _nop_();
}