STM32F030读取温湿度传感器SHT20的C程序源码经实测实用过.docx

/** ****************************************************************************** * @file HTU20.x * @brief HTU20 function * @cpu STM32F051 * @compiler Keil uVision V5.01 * @author Hanney * @copyright * @version V1.0.1 * @date 18-Sept-2015 * @modifydate 20-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 #define HTU20_CLK RCC_AHBPeriph_GPIOB #define HTU20_SDA_PORT GPIOB #define HTU20_SCL_PORT GPIOB #define HTU20_SDA_PIN GPIO_Pin_11 #define HTU20_SCL_PIN GPIO_Pin_10 #define RESOLUTION_11b 0x81 //RH 11 TH 11 #define RESOLUTION_12b 0x01 //RH 8 TH 12 #define RESOLUTION_13b 0x80 //RH 10 TH 13 #define RESOLUTION_14b 0x00 //RH 12 TH 14 #define OTP_disEN 0x02 //不能启动OPT加载 #define OTP_EN 0x00 //启动OPT加载 #define RESh 16 //湿度解析度 #define RESt 16 //温度解析度 #define MeasureDelay 12 //解析延时时间 单位ms typedef unsigned char BYTE; typedef unsigned int WORD; BYTE Delayms; GPIO_InitTypeDef GPIO_InitStructure; void delayms(BYTE ms); /** * @brief Start HTU GPIO port CLK * @retval None */ void HTUInit(void) { RCC_AHBPeriphClockCmd(HTU20_CLK, ENABLE); } /*================================================================ IIC address ================================================================*/ #define SHT20ADDR 0x80 /*================================================================ ACK and NACK defination ================================================================*/ #define ACK 0 #define NACK 1 /*================================================================ HTU20D Command Code ===========