#include?“sht11.h“
#include?

/*************************************************************
??Function???:SHT11_Delay??
??Description:SHT11時(shí)序需要的延時(shí)
??Input??????:?none????????
??return?????:?none????
*************************************************************/
void?SHT11_Delay（void）
{
			__ASM（“NOP“）;
}


/*************************************************************
??Function???:SHT11_DATAOut
??Description:設(shè)置DATA引腳為輸出
??Input??????:?none
??return?????:?none
*************************************************************/
void?SHT11_DATAOut（void）
{
????????GPIO_InitTypeDef?GPIO_InitStructure;
????????//PB7?DATA?推挽輸出???????
????????GPIO_InitStructure.Pin?=?GPIO_PIN_7;
????????GPIO_InitStructure.Speed?=?GPIO_SPEED_FREQ_HIGH;
????????GPIO_InitStructure.Mode?=?GPIO_MODE_OUTPUT_PP;
????????HAL_GPIO_Init（GPIOB?&GPIO_InitStructure）;
}


/*************************************************************
??Function???:SHT11_DATAIn??
??Description:設(shè)置DATA引腳為輸入
??Input??????:?none????????
??return?????:?none????
*************************************************************/
void?SHT11_DATAIn（void）
{
????????GPIO_InitTypeDef?GPIO_InitStructure;
????????//PB7?DATA?浮動(dòng)輸入???????
????????GPIO_InitStructure.Pin?=?GPIO_PIN_7;
????????GPIO_InitStructure.Speed?=?GPIO_SPEED_FREQ_HIGH;
????????GPIO_InitStructure.Mode?=?GPIO_MODE_INPUT;//GPIO_Mode_IN_FLOATING;
????????HAL_GPIO_Init（GPIOB?&GPIO_InitStructure）;
}

/*************************************************************
??Function???:SHT11_WriteByte??
??Description:寫1字節(jié)
??Input??????:?value:要寫入的字節(jié)???????
??return?????:?err:?0-正確??1-錯(cuò)誤????
*************************************************************/
uint8_t?SHT11_WriteByte（uint8_t?value）
{
????????uint8_t?i?err?=?0;
????????
	
????????SHT11_DATAOut（）;????????????????????????????????//設(shè)置DATA數(shù)據(jù)線為輸出

????????for（i?=?0x80;?i?>?0;?i?/=?2）??//?1???
????????{
????????????????if（i?&?value）
????????????????????????SHT11_DATA_H（）;
????????????????else
????????????????????????SHT11_DATA_L（）;
????????????????SHT11_Delay（）;
????????????????SHT11_SCK_H（）;
????????????????SHT11_Delay（）;
????????????????SHT11_SCK_L（）;
????????????????SHT11_Delay（）;
????????}
????????SHT11_DATAIn（）;??????????????????????????????????//設(shè)置DATA數(shù)據(jù)線為輸入釋放DATA線
????????SHT11_SCK_H（）;
????????err?=?SHT11_DATA_R（）;????????????????????????????//讀取SHT11的應(yīng)答位
????????SHT11_SCK_L（）;

????????return?err;
}

/*************************************************************
??Function???:SHT11_ReadByte??
??Description:讀1字節(jié)數(shù)據(jù)
??Input??????:?Ack:?0-不應(yīng)答??1-應(yīng)答????????
??return?????:?err:?0-正確?1-錯(cuò)誤????
*************************************************************/
uint8_t?SHT11_ReadByte（uint8_t?Ack）
{
????????uint8_t?i?val?=?0;

????????SHT11_DATAIn（）;??????????????????????????????????//設(shè)置DATA數(shù)據(jù)線為輸入
????????for（i?=?0x80;?i?>?0;?i?/=?2）?????????????????????//讀取1字節(jié)的數(shù)據(jù)
????????{
????????????????SHT11_Delay（）;
???????????????