STM32F030读取温湿度传感器SHT20的C程序源码经.docx

STM32F030读取温湿度传感器SHT20的C程序源码经.docx

《STM32F030读取温湿度传感器SHT20的C程序源码经.docx》由会员分享，可在线阅读，更多相关《STM32F030读取温湿度传感器SHT20的C程序源码经.docx（13页珍藏版）》请在冰豆网上搜索。

STM32F030读取温湿度传感器SHT20的C程序源码经

*******************************************************************************@fileHTU20.x

*@briefHTU20function

*@cpuSTM32F051

*@compilerKeiluVisionV5.01

*@authorHanney

*@copyright

*@versionV1.0.1

*@date18-Sept-2015

*@modifydate20-Sept-2015

*******************************************************************************@attention

*/

//STM32F051模拟IIC

//#include"boardAPI.h"

//#include"stm32f0xx.h"

//#include"HTU20.h"

//#include"uart.h"

//#include"delay.h"

#include"stm32f0xx.h"

#include"stm32lib.h"

#defineHTU20_CLKRCC_AHBPeriph_GPIOB

#defineHTU20_SDA_PORTGPIOB

#defineHTU20_SCL_PORTGPIOB

#defineHTU20_SDA_PINGPIO_Pin_11

#defineHTU20_SCL_PINGPIO_Pin_10

#defineRESOLUTION_11b0x81//RH11TH11

#defineRESOLUTION_12b0x01//RH8TH12

#defineRESOLUTION_13b0x80//RH10TH13

#defineRESOLUTION_14b0x00//RH12TH14

#defineOTP_disEN0x02//不能启动OPT加载

#defineOTP_EN0x00//启动OPT加载

#defineRESh16//湿度解析度

#defineRESt16//温度解析度

#defineMeasureDelay12//解析延时时间单位ms

typedefunsignedcharBYTE;

typedefunsignedintWORD;

BYTEDelayms;

GPIO_InitTypeDefGPIO_InitStructure;

voiddelayms（BYTEms;

/**

*@briefStartHTUGPIOportCLK

*@retvalNone

*/

voidHTUInit（void

{

RCC_AHBPeriphClockCmd（HTU20_CLK,ENABLE;

}

/*================================================================

IICaddress

================================================================*/#defineSHT20ADDR0x80

/*================================================================ACKandNACKdefination

================================================================*/#defineACK0

#defineNACK1

/*================================================================

HTU20DCommandCode

================================================================*//*

CommandCodeCommentTriggerTemperatureMeasurement0xe3HoldmasterTriggerHumidityMeasurement0xe5HoldmasterTriggerTemperatureMeasuremeng0xf3NoHoldmasterTriggerHumidityMeasurement0xf5NoHoldmasterWriteuserregister0xe6

Readuserregister0xe7

SoftReset0xfe

*/

#defineSOFT_RESET0xfe

#defineREAD_REGISTER0xe7

#defineWRITE_REGISTER0xe6

#defineTRIGGER_TEMP0xf3

#defineTRIGGER_HUMI0xf5

/*================================================================

HTU20operateinterface

================================================================*/

#defineHTU20_SCLGPIO_ReadInputDataBit（HTU20_SCL_PORT,HTU20_SCL_PIN#defineHTU20_SDAGPIO_ReadInputDataBit（HTU20_SDA_PORT,HTU20_SDA_PIN

/**

*@briefSetSDApindircateasoutput

*@retvalNone

*/

voidHTU20_SDA_OUT（

{

GPIO_StructInit（&GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin=HTU20_SDA_PIN;

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_OUT;

GPIO_InitStructure.GPIO_OType=GPIO_OType_OD;

GPIO_InitStructure.GPIO_Speed=GPIO_Speed_Level_2;

GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_NOPULL;

GPIO_Init（HTU20_SDA_PORT,&GPIO_InitStructure;

}

/**

*@briefSetSDApindircateasintput

*@retvalNone

*/

voidHTU20_SDA_IN（

{

GPIO_StructInit（&GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin=HTU20_SDA_PIN;

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN;

GPIO_InitStructure.GPIO_Speed=GPIO_Speed_Level_2;

GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_NOPULL;

GPIO_Init（HTU20_SDA_PORT,&GPIO_InitStructure;

}

/**

*@briefSetSDApinashigh

*@retvalNone

*/

voidHTU20_SDA_1（

{

GPIO_SetBits（HTU20_SDA_PORT,HTU20_SDA_PIN;

}

/**

*@briefSetSDApinaslow

*@retvalNone

*/

voidHTU20_SDA_0（

{

GPIO_ResetBits（HTU20_SDA_PORT,HTU20_SDA_PIN;}

/**

*@briefSetSCLpindircateasoutput

*@retvalNone

*/

voidHTU20_SCL_OUT（

{

GPIO_StructInit（&GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin=HTU20_SCL_PIN;GPIO_InitStructure.GPIO_Mode=GPIO_Mode_OUT;GPIO_InitStructure.GPIO_OType=GPIO_OType_OD;GPIO_InitStructure.GPIO_Speed=GPIO_Speed_Level_2;GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_NOPULL;GPIO_Init（HTU20_SCL_PORT,&GPIO_InitStructure;

}

/**

*@briefSetSCLpinashigh

*@retvalNone

*/

voidHTU20_SCL_1（

{

GPIO_SetBits（HTU20_SCL_PORT,HTU20_SCL_PIN;

}

/**

*@briefSetSCLpinaslow

*@retvalNone

*/

voidHTU20_SCL_0（

{

GPIO_ResetBits（HTU20_SCL_PORT,HTU20_SCL_PIN;

}

/*================================================================

SimulationI2CFunction

================================================================*/

/**

*@briefAshortdelayforiicsynchronization

*@paramtus

*@retvalNone

*/

voidI2CDelay（BYTEt

{

while（t--

{

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

__nop（;__nop（;__nop（;__nop（;__nop（;

}

}

/**

*@briefI2Cinit

*@retvalNone

*/

voidI2CInit（void

{

HTUInit（;

HTU20_SDA_OUT（;

HTU20_SCL_OUT（;

HTU20_SDA_1（;

I2CDelay（1;

HTU20_SCL