BMP180单片机驱动程序

#include BMP180IIC。h # include“delay . h”#include BMP180。h #include SHT21。h Short ac1短ac2Short ac3Unsigned short ac4Unsigned short ac5Unsigned short ac6短B1；Short2Short MBShort MCShort MD/BMP180获取设备ID默认值为0x55Uchar GetBMP180DeviceID()uchar DeviceID=0；BMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 write address)；/发送设备地址写入信号BMP 180 IIC _ Send _ Byte(0x d0)；/存储设备地址0D发送ID存储寄存器BMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 read address)；/发送设备地址读取信号device id=BMP 180 IIC _ read _ byte(nack)；BMP 180 IIC _ Stop()；Return DeviceID/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */BMP085内部数据读取，连续2/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *short multiple _ read(UC harst _ address)Uchar msb、LSBShort _ dataBMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 write address)；/发送设备地址写入信号BMP 180 IIC _ Send _ Byte(ST _ Address)；/发送存储设备地址BMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 read address)；/发送设备地址读取信号msb=BMP 180 IIC _ Read _ Byte(ACK)；/BUF0保存LSB=BMP 180 IIC _ Read _ Byte(NACK)；BMP 180 IIC _ Stop()；/停止信号delayms(5)；_ data=msb 8；_ data |=LSBReturn _ data/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */* * * * * * * * BMP 180温度读取* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *长BMP180ReadTemp(void)BMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 write address)；/发送设备地址写入信号BMP 180 IIC _ Send _ Byte(0x F4)；/write register addressBMP 180 IIC _ send _ byte(0x Fe)；/write register data for tempBMP 180 IIC _ Stop()；/停止信号delayms(5)；/max time is 4.5msreturn(long)Multiple _ read(0x F6)；/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */* * * * * * * * * BMP 180压力读取* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *长BMP180ReadPressure(void)长持续时间=0；BMP 180 IIC _ Start()；/起始信号BMP 180 IIC _ send _ byte(BMP 180 write address)；/发送设备地址写入信号BMP 180 IIC _ Send _ Byte(0x F4)；/write register addressBMP 180 IIC _ Send _ Byte(0x34)；/write register data for pressureBMP 180 IIC _ Stop()；/停止信号delayms(5)；/max time is 4.5mspressure=Multiple _ read(0x F6)；Pressure=0x0000FFFFReturn pressure/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */BMP085初始化并根据需要参考pdf进行修改。* * * * * * * * * * * * * * * * * * * * * * * * *Uchar BMP180Init()BMP 180 IIC _ Init()；If(GetBMP180DeviceID()！=0x55) /读取设备ID0x 55表示与BMP180的通信失败return 1；ac1=Multiple _ read(0xAA)；ac2=Multiple _ read(0x AC)；ac3=Multiple _ read(0xAE)；ac4=Multiple _ read(0x B0)；ac5=Multiple _ read(0x B2)；ac6=Multiple _ read(0x B4)；B1=Multiple _ read(0x B6)；B2=Multiple _ read(0x b8)；MB=Multiple _ read(0x ba)；MC=Multiple _ read(0x BC)；MD=Multiple _ read(0x be)；return 0；/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */将导入的压力值和温度值存储在BMP180Temp和BMP180Press中/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *Void BMP180Convert()长ut；长up；长x1、x2、b5、b6、x3、b3、p；Unsigned long b4、B7；冗长的temperature长持续时间；ut=BMP 180 read temp()；ut=BMP 180 read temp()；/读取温度up=BMP 180 read pressure()；up=BMP 180 read pressure()；/读取压力x1=(long)ut-ac6)* ac5 15；X2=(长)MC 11)/(x1 MD)；B5=x1 x2temperature=(b5 8)4；B6=b5-4000；x1=(B2 *(B6 * B6 12)11；X2=ac2 * b11X3=x1 x2B3=(长)ac1 * 4 x3)2)/4；X1=ac3 * B13x2=(B1 *(B6 * B6 12)16；x3=(x1 x2)2)2；B4=(ac4 *(unsigned long)(x 3 32768)15；B7=(unsigned long