sht.h

AVRMEG32编写的一个项目代码,里面包含一般应用的模块.

//----------------------------------------------------------------------------------
//
// Sensirion SHT1x Humidity Sensor Library
//
//----------------------------------------------------------------------------------

#ifndef __sht_h
#define __sht_h
#include "includes.h"
#ifndef	XTAL
#define XTAL				7372800		// Processor clock
#endif

#define SHT_TEMPERATURE 	0x03		// Measure temp - for ShtMeasure
#define SHT_HUMIDITY 		0x05		// Measure humidity - for ShtMeasure

#define SHT_DDR				DDRD		// Port with clock and data pins
#define SHT_PORT			PORTD		// Port with clock and data pins
#define SHT_PIN				PIND		// Port with clock and data pins
#define SHT_CLOCK			7	      	// Pin used to output clock to SHT
#define SHT_DATA			6   		// Pin used to read/output data from/to SHT

#define SHT_DELAY			25			// uS delay between clock rise/fall

#define STATUS_REG_W 		0x06 		// Command to read status register
#define STATUS_REG_R 		0x07 		// Command to write status register
//#define RESET 				0x1e 		// Command for soft reset (not currently used)


void ShtInit(void);
void ShtReset(void);
s16  ShtMeasure(void);
void ShtCalculate(s16 *p_temperature, s16 *p_humidity);
s08 ShtReadStatus(u08 *p_value);
s08 ShtWriteStatus(u08 value);
u08 write_mode(u08 mode);

#endif