STM32F030读取温湿度传感器SHT20的C程序源码（经.doc

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1、*******************************************************************************@fileHTU20.x*@briefHTU20function*@cpuSTM32F051*@compilerKeiluVisionV5.01*@authorHanney*@copyright*@versionV1.0.1*@date18-Sept-2015*@modifydate20-Sept-2015***********************************

2、********************************************@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_PO

3、RTGPIOB#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#de

4、fineOTP_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mstypedefunsignedcharBYTE;typedefunsignedintWORD;BYTEDelayms;GPIO_InitTypeDefGPIO_InitStructure;voiddelayms(BYTEms;/***@briefStartHTUGPIOportCLK*@retvalNone*/voidHTUInit(void

5、{RCC_AHBPeriphClockCmd(HTU20_CLK,ENABLE;}/*================================================================IICaddress================================================================*/#defineSHT20ADDR0x80/*===============================================================

6、=ACKandNACKdefination================================================================*/#defineACK0#defineNACK1/*================================================================HTU20DCommandCode================================================================*//*Command

7、CodeCommentTriggerTemperatureMeasurement0xe3HoldmasterTriggerHumidityMeasurement0xe5HoldmasterTriggerTemperatureMeasuremeng0xf3NoHoldmasterTriggerHumidityMeasurement0xf5NoHoldmasterWriteuserregister0xe6Readuserregister0xe7SoftReset0xfe*/#defineSOFT_RESET0xfe#defineREA

8、D_REGISTER0xe7#defineWRITE_REGISTER0xe6#defineTRIGGER_TEMP0xf3#defineTRIGGER_HUMI0xf5/*=====================================