谁有控制MMA7455三轴程序

只看该作者 · 2018-7-10 22:07

#include <reg52.h>
#include "mytype.h"
#include "iic.h"
#include "mma7455.h"

uint8 X,Y,Z;
void main()
{
uint8 i,temp;
EA=1;    //打开中断
EX1=1;    //打开外部中断INIT1

  //初始化IIC总线
IIC_init();

//写数据
  IIC_start();
IIC_write_byte(MMA7455_ADDER_WRITE);    //1. 在IIC总线上寻址MMA7455
IIC_respons();
IIC_write_byte(MMA7455_Mode_Control_Register); //2. 模式设置寄存器寻址
IIC_respons();
IIC_write_byte(0x05);       //3. 模式寄存器数据写入
IIC_respons();
IIC_stop();

//写数据
  IIC_start();
IIC_write_byte(MMA7455_ADDER_WRITE);    //1. 在IIC总线上寻址MMA7455
IIC_respons();
IIC_write_byte(MMA7455_Mode_Control_Register); //2. 量程检测设置寄存器寻址
IIC_respons();
IIC_write_byte(MMA7455_2G_Measurement_Mode); //3. 设置量程为2G，检测模式。量程检测设置寄存器配置数据写入
IIC_respons();
IIC_stop();

  while(1)
{
  //读X轴数据
  IIC_start();
  IIC_write_byte(MMA7455_ADDER_WRITE); //1. IIC地址寻址
  IIC_respons();
  IIC_write_byte(MMA7455_READ_X);    //2. X轴数据寄存器寻址
  IIC_respons();
  IIC_start();          //3.
  IIC_write_byte(MMA7455_ADDER_READ);    //改变读写方向
  IIC_respons();
  X=IIC_read_byte();       //4.读数据
  IIC_stop();
  //读Y轴数据
  IIC_start();
  IIC_write_byte(MMA7455_ADDER_WRITE); //1. IIC地址寻址
  IIC_respons();
  IIC_write_byte(MMA7455_READ_Y);    //2. X轴数据寄存器寻址
  IIC_respons();
  IIC_start();          //3.
  IIC_write_byte(MMA7455_ADDER_READ);    //改变读写方向
  IIC_respons();
  Y=IIC_read_byte();       //4.读数据
  IIC_stop();
  //读X轴数据
  IIC_start();
  IIC_write_byte(MMA7455_ADDER_WRITE); //1. IIC地址寻址
  IIC_respons();
  IIC_write_byte(MMA7455_READ_X);    //2. X轴数据寄存器寻址
  IIC_respons();
  IIC_start();          //3.
  IIC_write_byte(MMA7455_ADDER_READ);    //改变读写方向
  IIC_respons();
  Z=IIC_read_byte();       //4.读数据
  IIC_stop();
}
}