HMC1022电子指南针模块51代码IIC

void conversion(uint temp_data)
{
uchar ge_data,shi_data,bai_data ,qian_data;
qian_data=temp_data/1000 ;
temp_data=temp_data%1000; //取余运算
sbit KEY_2 =P2^4; //按键2
sbit KEY_3 =P2^5; //按键3
sbit KEY_4 =P2^6; //按键4
uchar templ,temph,cnt;
uchar ge,shi,bai,qian;
uint dis_data,dis_data1;
dis_data=BUF[1];
dis_data<<=8;
dis_data|=BUF[2];
conversion(dis_data);
ge=HEX_TO_ASCII(ge);
shi=HEX_TO_ASCII(shi);
bai=HEX_TO_ASCII(bai);
if(KEY_3==0){
recovery_factory();
void IIC_ADDR_Change();
void delay_10ms();
//*********************************************************
uchar HEX_TO_ASCII(uchar HEX_data)
{uchar ASCII_data;
DisplayOneChar(12,1,ge);
//----------按键检测
if(KEY_1==0){
delay_10ms();
if(KEY_1==0){
cal_on();
while(KEY_1==0)delay_10ms();
DisplayOneChar(5,1,ge);
DisplayOneChar(6,1,0XDF); //温度单位
DisplayOneChar(7,1,'C'); //温度单位
//-------显示磁偏量
dis_data1=0;
dis_data1=BUF[3];
dis_data1<<=8;
void AT24C04_WritePage();
void read_cmp(void);
//-----------------------------------
void cal_on();
void cal_off();
void recovery_factory();
void CMP_OFFS();
bai_data=temp_data/100 ;
temp_data=temp_data%100; //取余运算
shi_data=temp_data/10 ;
temp_data=temp_data%10; //取余运算
ge_data=temp_data;
dis_data&=0xefff; //清符号位
}
else DisplayOneChar(0,1,' ');//如果bit-12为0,空格,清空
conversion(dis_data);
ge=HEX_TO_ASCII(ge);
shi=HEX_TO_ASCII(shi);
}
}
if(KEY_2==0){
delay_10ms();
if(KEY_2==0){
cal_off();
while(KEY_2==0)delay_10ms();
}
}
if(KEY_3==0){
delay_10ms();
qian=HEX_TO_ASCII(qian);
DisplayOneChar(0,0,qian);
DisplayOneChar(1,0,bai);
DisplayOneChar(2,0,shi);
DisplayOneChar(3,0,'.');
DisplayOneChar(4,0,ge);
sbit LCM_RS=P2^0; //LCD1602命令端口
sbit LCM_RW=P2^1; //LCD1602命令端口
sbit LCM_EN=P2^2; //LCD1602命令端口
sbit KEY_1 =P2^3; //按键1
ge=HEX_TO_ASCII(ge);
shi=HEX_TO_ASCII(shi);
bai=HEX_TO_ASCII(bai);
qian=HEX_TO_ASCII(qian);
DisplayOneChar(10,1,bai);
DisplayOneChar(11,1,shi);
#define DataPort P0 //LCD1602数据端口
#define WriteDeviceAddress 0xE0 //定义器件在IIC总线中的地址
#define ReadDviceAddress 0xE1 //器件在IIC总线中地址+1
typedef unsigned char BYTE;
#include <math.h> //Keil library
#include <stdio.h> //Keil library
#include <INTRINS.H>
#define uchar unsigned char
#define uint unsigned int
typedef unsigned short WORD;
BYTE BUF[8]; //数据缓存区
BYTE code res[6] _at_ 0x23;
sbit SCL=P1^0; //iic时钟引脚定义
sbit SDA=P1^1; //iic数据引脚定义
case 0x0d:ASCII_data=0x44;break;
case 0x0e:ASCII_data=0x45;break;
case 0x0f:ASCII_data=0x46;break;
}
return(ASCII_data);
}
//*********************************************************
switch(HEX_data){
case 0x00:ASCII_data=0x30;break;
case 0x01:ASCII_data=0x31;break;
case 0x02:ASCII_data=0x32;break;
case 0x03:ASCII_data=0x33;break;
bai=HEX_TO_ASCII(bai);
qian=HEX_TO_ASCII(qian);
DisplayOneChar(1,1,qian);
DisplayOneChar(2,1,bai);
DisplayOneChar(3,1,shi);
DisplayOneChar(4,1,'.');
uchar HEX_TO_ASCII(uchar HEX_data);
void conversion(uint temp_data);
//------------------------------------
void Delay5us();
void Delay5ms();
void AT24C04_Start();
{
unsigned int i;
delay(500);
InitLcd();
EA=0;
cnt=0;
while(1) //循环
{
read_cmp(); //读出数据
//---------显示角度
dis_data=0;
//淘宝网 /
// GY-26 IIC测试程序
// 使用单片机STC89C51
// 晶振：11.0592M
// 显示：LCD1602
// 编译环境 Keil uVision2
// 程序中把模块当24c04进行通信
#include <REG51.H>
qian= qian_data;
bai = bai_data;
shi = shi_data;
ge = ge_data ;
}
//*********************************************************
void main()
dis_data1|=BUF[4];
conversion(dis_data1);
ge=HEX_TO_ASCII(ge);
shi=HEX_TO_ASCII(shi);
bai=HEX_TO_ASCII(bai);
qian=HEX_TO_ASCII(qian);
DisplayOneChar(7,0,qian);
case 0x08:ASCII_data=0x38;break;
case 0x09:ASCII_data=0x39;break;
case 0x0a:ASCII_data=0x41;break;
case 0x0b:ASCII_data=0x42;break;
case 0x0c:ASCII_data=0x43;break;
//---------显示温度
dis_data=0;