BMP180气压传感器调试
BMP180气压传感器具有体积小，功耗低等优点，因为广泛的被应用于手机，手表等小型编写式设计，在淘宝上看到有现成的模块，就买了一个玩玩，目的是想将它和CC2540组合，做一个电子气压计，并通过蓝牙传送到手机。下面为BMP180在CC2540上的测试程序。
#include
#include "bmp180.h"
//#include "bmpi2c.h"
#include //Keil library
#include //Keil library
#include //Keil library
#define uchar unsigned char
#define uint unsigned int
#define BMP085_SlaveAddress 0xee //定义器件在IIC总线中的从地址
#define OSS 0// Oversampling Setting (note: code is not set up to use other OSS values)
typedef unsigned char BYTE;
typedef unsigned short WORD;
long temperature = 8;//温度值
long pressure = 8;//压力值
long height = 8;//相对海拔高度值
//uchar ge,shi,bai,qian,wan,shiwan; //显示变量
int dis_data; //变量
short ac1;
short ac2;
short ac3;
unsigned short ac4;
unsigned short ac5;
unsigned short ac6;
short b1;
short b2;
short mb;
short mc;
short md;
void Delay5us()
{
unsigned int i,j;
for(i=0;i<5;i++)
for(j=0;j<50;j++);
return;
}
void Delay_1ms(unsigned char msDelay)
{
unsigned int i,j;
for(i=0;i> 15;
x2 = ((long) mc << 11) / (x1 + md);
b5 = x1 + x2;
temperature = ((b5 + 8) >> 4);
// conversion(temperature);
// DisplayOneChar(4,0,'T'); //温度显示
// DisplayOneChar(5,0,':');
// DisplayOneChar(7,0,bai);
// DisplayOneChar(8,0,shi);
// DisplayOneChar(9,0,'.');
// DisplayOneChar(10,0,ge);
// DisplayOneChar(11,0,0XDF); //温度单位
// DisplayOneChar(12,0,'C');
b6 = b5 - 4000;
// Calculate B3
x1 = (b2 * (b6 * b6)>>12)>>11;
x2 = (ac2 * b6)>>11;
x3 = x1 + x2;
b3 = (((((long)ac1)*4 + x3)<>2;
// Calculate B4
x1 = (ac3 * b6)>>13;
x2 = (b1 * ((b6 * b6)>>12))>>16;
x3 = ((x1 + x2) + 2)>>2;
b4 = (ac4 * (unsigned long)(x3 + 32768))>>15;
b7 = ((unsigned long)(up - b3) * (50000>>OSS));
if (b7 < 0x80000000)
p = (b7<<1)/b4;
else
p = (b7/b4)<<1;
x1 = (p>>8) * (p>>8);
x1 = (x1 * 3038)>>16;
x2 = (-7357 * p)>>16;
pressure = p+((x1 + x2 + 3791)>>4);
//height=(101325-pressure)*9;
height = 44330-4961*pow(pressure, 0.19);
// conversion(pressure);
// DisplayOneChar(4,1,'P'); //显示压强
// DisplayOneChar(5,1,':');
// DisplayOneChar(6,1,shiwan);
// DisplayOneChar(7,1,wan);
// DisplayOneChar(8,1,qian);
// DisplayOneChar(9,1,'.');
// DisplayOneChar(10,1,bai);
// DisplayOneChar(11,1,shi);
// DisplayOneChar(12,1,'K'); //气压单位
// DisplayOneChar(13,1,'p');
// DisplayOneChar(14,1,'a');
}
/*
void OLED_BMP180()
{
Init_BMP085();
bmp085Convert();
LCD_P8x16Str(20,3,"H:");
OLCD_P8x16(36,3,height/10000);
OLCD_P8x16(44,3,height%10000/1000);
OLCD_P8x16(52,3,height%1000/100);
//OLCD_P8x16(60,3,height%100/10);
LCD_P8x16Str(60,3,"M");
LCD_P8x16Str(20,5,"P:");
OLCD_P8x16(36,5,pressure/100000);
OLCD_P8x16(44,5,pressure%100000/10000);
OLCD_P8x16(52,5,pressure%10000/1000);
LCD_P8x16Str(60,5,".");
OLCD_P8x16(68,5,pressure%1000/100);
LCD_P8x16Str(76,5,"Kpa");
LCD_P8x16Str(20,1,"T:");
OLCD_P8x16(36,1,temperature/100);
OLCD_P8x16(44,1,temperature%100/10);
LCD_P8x16Str(52,1,".");
OLCD_P8x16(60,1,temperature%10);
LCD_P8x16Str(68,1,"'C");
}*/ 