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STM32F103讀SHT31溫濕度傳感器代碼,實測可用,采用MDK5.4編譯器

代碼片段和文件信息
//=============================================================================
//????S?E?N?S?I?R?I?O?N???AG??Laubisruetistr.?50?CH-8712?Staefa?Switzerland
//=============================================================================
//?Project???:??SHT3x?Sample?Code?(V1.1)
//?File??????:??i2c_hal.c?(V1.1)
//?Author????:??RFU
//?Date??????:??6-Mai-2015
//?Controller:??STM32F100RB
//?IDE???????:??礦ision?V5.12.0.0
//?Compiler??:??Armcc
//?Brief?????:??I2C?hardware?abstraction?layer
//=============================================================================
//--?Includes?-----------------------------------------------------------------
#include?“i2c_hal.h“
//--?Defines?------------------------------------------------------------------
//?I2C?IO-Pins????????????????????????/*?--?adapt?the?defines?for?your?uC?--?*/
//?SDA?on?port?B?bit?7
#define?SDA_LOW()??(GPIOB->BSRR?=?0x00800000)?//?set?SDA?to?low
#define?SDA_OPEN()?(GPIOB->BSRR?=?0x00000080)?//?set?SDA?to?open-drain
#define?SDA_READ???(GPIOB->IDR??&?0x0080)?????//?read?SDA
//?SCL?on?port?B?bit?6??????????????/*?--?adapt?the?defines?for?your?uC?--?*/
#define?SCL_LOW()??(GPIOB->BSRR?=?0x00400000)?//?set?SCL?to?low
#define?SCL_OPEN()?(GPIOB->BSRR?=?0x00000040)?//?set?SCL?to?open-drain
#define?SCL_READ???(GPIOB->IDR??&?0x0040)?????//?read?SCL
//--?Static?function?prototypes?-----------------------------------------------
static?etError?I2c_WaitWhileClockStreching(u8t?timeout);
//-----------------------------------------------------------------------------
void?I2c_Init(void)??????????????????????/*?--?adapt?the?init?for?your?uC?--?*/
{
??RCC->APB2ENR?|=?0x00000008;??//?I/O?port?B?clock?enabled
??
??SDA_OPEN();??????????????????//?I2C-bus?idle?mode?SDA?released
??SCL_OPEN();??????????????????//?I2C-bus?idle?mode?SCL?released
??
??//?SDA?on?port?B?bit?14
??//?SCL?on?port?B?bit?13
GPIOB->CRL&=0X00FFFFFF; //PB6/7?推挽輸出
GPIOB->CRL|=0X55000000; ???
}
//-----------------------------------------------------------------------------
void?I2c_StartCondition(void)
{
??SDA_OPEN();
??DelayMicroSeconds(1);
??SCL_OPEN();
??DelayMicroSeconds(1);
??SDA_LOW();
??DelayMicroSeconds(10);??//?hold?time?start?condition?(t_HD;STA)
??SCL_LOW();
??DelayMicroSeconds(10);
}
//-----------------------------------------------------------------------------
void?I2c_StopCondition(void)
{
??SCL_LOW();
??DelayMicroSeconds(1);
??SDA_LOW();
??DelayMicroSeconds(1);
??SCL_OPEN();
??DelayMicroSeconds(10);??//?set-up?time?stop?condition?(t_SU;STO)
??SDA_OPEN();
??DelayMicroSeconds(10);
}
//-----------------------------------------------------------------------------
etError?I2c_WriteByte(u8t?txByte)
{
??etError?error?=?NO_ERROR;
??u8t?????mask;
??for(mask?=?0x80;?mask?>?0;?mask?>>=?1)//?shift?bit?for?masking?(8?times)
??{
????if((mask?&?txByte)?==?0)?SDA_LOW();?//?masking?txByte?write?bit?to?SDA-Line
????else?????????????????????SDA_OPEN();
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????2047??2017-11-23?15:41??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\DebugConfig\STM32-Discovery_STM32F100RB_1.0.0.dbgconf
?????文件????????339??2019-02-20?11:47??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\EventRecorderStub.scvd
?????文件?????241595??2019-02-19?15:19??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\i2c_hal.crf
?????文件????????650??2019-02-19?15:19??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\i2c_hal.d
?????文件?????259232??2019-02-19?15:19??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\i2c_hal.o
?????文件?????245349??2019-02-20?11:51??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\Jli
?????文件????????755??2019-02-19?17:10??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\Jli
?????文件?????245993??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\main.crf
?????文件????????640??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\main.d
?????文件?????261212??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\main.o
?????文件????????241??2015-05-07?22:24??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\Readme.txt
?????文件????????363??2019-02-19?15:07??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\RTE\_STM32-Discovery\RTE_Components.h
?????文件?????252776??2019-02-19?17:12??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\sht3x.crf
?????文件????????653??2019-02-19?17:12??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\sht3x.d
?????文件?????276188??2019-02-19?17:12??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\sht3x.o
?????文件??????44048??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.axf
?????文件???????1761??2019-02-20?11:47??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.build_log.htm
?????文件??????68264??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.htm
?????文件????????334??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.lnp
?????文件??????69450??2019-02-20?11:46??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.map
?????文件????????479??2019-02-19?15:07??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.sct
????.......????169185??2019-02-19?18:03??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.uvguix.victor
?????文件???????9776??2015-05-07?22:24??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.uvopt
????.......??????9362??2019-02-19?18:03??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.uvoptx
?????文件??????16124??2015-05-07?22:24??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.uvproj.saved_uv4
????.......?????15250??2019-02-19?17:12??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode.uvprojx
?????文件???????4526??2019-02-20?11:47??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_SampleCode_STM32-Discovery.dep
?????文件??????13466??2015-05-07?22:24??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\SHT3x_Samplecode_Structure.pdf
?????文件???????5661??2019-02-19?15:19??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\Source\i2c_hal.c
?????文件???????2922??2015-05-07?22:24??Sensirion_Humidity_Sensors_SHT3x_Sample_Code\Source\i2c_hal.h
............此處省略21個文件信息
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