/**
********************************************************
*
*?@file??????Hal_temp_hum.c
*?@author????Gizwtis
*?@version???V03010100
*?@date??????2016-07-05
*
*?@brief?????機(jī)智云.只為智能硬件而生
*????????????Gizwits?Smart?Cloud??for?Smart?Products
*????????????鏈接|增值?|開放|中立|安全|自有|自由|生態(tài)
*????????????www.gizwits.com
*
*********************************************************/
#include?“hal_temp_hum.h“
#include?

thTypedef_t?temphumTypedef;

//在里面添加自定義的延時(shí)函數(shù)
void?delayUs（uint32_t?nus）
{
	TIM1_Delay_us（nus）;
}


void?DHT11_IO_OUT（void）
{
		GPIO_InitTypeDef?myGPIO_InitStruct;
		myGPIO_InitStruct.Pin?=?GPIO_PIN_3;
		myGPIO_InitStruct.Mode?=?GPIO_MODE_OUTPUT_PP;
		myGPIO_InitStruct.Speed?=?GPIO_SPEED_FREQ_HIGH;
		HAL_GPIO_Init（GPIOA?&myGPIO_InitStruct）;
}

void?DHT11_IO_IN（void）
{
		GPIO_InitTypeDef?myGPIO_InitStruct;
		myGPIO_InitStruct.Pin?=?GPIO_PIN_3;
	??myGPIO_InitStruct.Pull?=?GPIO_PULLUP;
		myGPIO_InitStruct.Mode?=?GPIO_MODE_INPUT;
		myGPIO_InitStruct.Speed?=?GPIO_SPEED_FREQ_HIGH;
		HAL_GPIO_Init（GPIOA?&myGPIO_InitStruct）;
}
//Reset?DHT11
static?void?dht11Rst（void）
{
????DHT11_IO_OUT（）;?			????????????//SET?OUTPUT
????DHT11_DQ_OUT_0;?			????????????//GPIOA.0=0
????HAL_Delay（20）;????			??????????//Pull?down?Least?18ms
????DHT11_DQ_OUT_1;?			????????????//GPIOA.0=1
????delayUs（30）;?????			????????????//Pull?up?20~40us
}

static?uint8_t?dht11Check（void）
{
????uint8_t?retry=0;
????DHT11_IO_IN（）;??????????????????????????????????????????????//SET?INPUT
????while?（DHT11_DQ_IN?&&?（retry<100））??????????????????????????//DHT11?Pull?down?40~80us
????{
????????retry++;
????????delayUs（1）;
????}

????if（retry?>=?100）
????{
????????return?1;
????}
????else
????{
????????retry=0;
????}

????while?（!DHT11_DQ_IN&&?（retry?????{
????????retry++;
????????delayUs（1）;
????}

????if（retry?>=?100）
????{
????????return?1;	????????????????????????//check?error
????}????????

????return?0;
}

static?uint8_t?dht11ReadBit（void）
{
????uint8_t?retry=0;
????while（DHT11_DQ_IN?&&?（retry<100））???????????????????????????//wait?become?Low?level
????{
????????retry++;
????????delayUs（1）;
????}

????retry?=?0;
????while（!DHT11_DQ_IN?&&?（retry?????{
????????retry++;
????????delayUs（1）;
????}

????delayUs（30）;//wait?40us

????if（DHT11_DQ_IN）
????{
????????return?1;
????}
????else
????{
????????return?0;
????}
}

static?uint8_t?dht11ReadByte（void）
{
????uint8_t?idat;
????dat=0;
????for?（i=0;?i<8;?i++）
????{
????????dat<<=1;
????????dat?|=?dht11ReadBit（）;
????}

????return?dat;
}

static?uint8_t?dht11ReadData（uint8_t?*temperature?uint8_t?*humidity）
{
????uint8_t?buf[5];
????uint8_t?i;
????dht11Rst（）;?
????if（0?==?dht11Check（））?
????{
????????for（i=0;?i<5;?i++）
????????{
????????????buf[i]?=?dht11ReadByte（）;
????????}
????????if（buf[4]?==?（buf[0]+buf[1]+buf[2]+buf[3]））
????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-05-07?14:22??ESP826_MQTT\
?????文件????????6635??2020-05-07?14:22??ESP826_MQTT\.mxproject
?????目錄???????????0??2020-05-07?13:56??ESP826_MQTT\BSP\
?????目錄???????????0??2020-05-07?13:15??ESP826_MQTT\BSP\DHT11\
?????文件????????5452??2020-05-07?13:36??ESP826_MQTT\BSP\DHT11\hal_temp_hum.c
?????文件????????1078??2020-05-07?13:36??ESP826_MQTT\BSP\DHT11\hal_temp_hum.h
?????目錄???????????0??2020-05-07?13:43??ESP826_MQTT\BSP\ESP8266\
?????文件????????6152??2020-05-06?08:09??ESP826_MQTT\BSP\ESP8266\esp8266_at.c
?????文件?????????795??2020-05-06?08:09??ESP826_MQTT\BSP\ESP8266\esp8266_at.h
?????目錄???????????0??2020-05-07?13:56??ESP826_MQTT\BSP\MQTT\
?????文件????????6914??2020-05-05?21:49??ESP826_MQTT\BSP\MQTT\esp8266_mqtt.c
?????文件?????????606??2020-05-05?21:49??ESP826_MQTT\BSP\MQTT\esp8266_mqtt.h
?????目錄???????????0??2020-05-07?11:25??ESP826_MQTT\Drivers\
?????目錄???????????0??2020-05-07?11:26??ESP826_MQTT\Drivers\CMSIS\
?????目錄???????????0??2020-05-07?11:25??ESP826_MQTT\Drivers\CMSIS\Core\
?????目錄???????????0??2020-05-07?11:25??ESP826_MQTT\Drivers\CMSIS\Core\Include\
?????文件???????28208??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_armcc.h
?????文件???????56497??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_armclang.h
?????文件????????9014??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_compiler.h
?????文件???????62344??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_gcc.h
?????文件???????28414??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_iccarm.h
?????文件????????1716??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\cmsis_version.h
?????文件???????97995??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_armv8mbl.h
?????文件??????168914??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_armv8mml.h
?????文件???????42208??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm0.h
?????文件???????50464??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm0plus.h
?????文件???????43456??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm1.h
?????文件??????104628??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm23.h
?????文件??????111854??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm3.h
?????文件??????175600??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm33.h
?????文件??????123607??2020-03-03?09:43??ESP826_MQTT\Drivers\CMSIS\Core\Include\core_cm4.h
............此處省略1148個(gè)文件信息