tsensor.h

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/******************************************************************************
 * tSensor.h
 *
 * Copyright 1994-2006 HolyStone Technology Co.,Ltd.
 *
 * DESCRIPTION:
 *
 * modification history
 * --------------------
 * 01a, 23mar2007, cuiqingwei written
 * --------------------
 ******************************************************************************/

#ifndef _TSENSOR_H
#define _TSENSOR_H

//-----------------------------------------------------------------------------
// Define constants
//-----------------------------------------------------------------------------

#define GRADIENT_C  0.01496
#define OFFSET_C    -300
#define ADC14_TO_CELSIUS(ADC_VALUE)    \
  ( (float)ADC_VALUE *(float)GRADIENT_C + OFFSET_C)

#define GRADIENT_F  (9.0/5.0 * GRADIENT_C)
#define OFFSET_F    (9.0/5.0 * OFFSET_C) + 32
#define ADC14_TO_FARENHEIT(ADC_VALUE)  \
( (float)ADC_VALUE *(float)GRADIENT_F + OFFSET_F)

//-----------------------------------------------------------------------------
// EXTERN FUNCTIONS
//-----------------------------------------------------------------------------
/******************************************************************************
*
* @fn  getTemperature
*
* @brief
*      Return the temperature measured with the internal temperature sensor.
*
* Parameters:
*
* @param  void
*
* @return temperature
*
******************************************************************************/

extern int8 getTemperature(void);

#endif  /* _TSENSOR_H */

/*------------------------------------------------------------------------------
                                        0ooo
						      ooo0     (   )
                              (   )     ) /
						       \ (     (_/
	    				        \_)        By:cuiqingwei [gary]
------------------------------------------------------------------------------*/