adc.h Source File

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 #ifndef ADC_H
 #define ADC_H
 
 #include <stdint.h>
 
 
 /** 
  * \addtogroup ADC ADC (Analog to Digital Converter)
  * \brief Interface to the AD-converter of the ATmega32, which allows to
  *   query the potentiometer and the photosensor of the board.
  *
  * @{
  * \file adc.h
  * \version \$Rev$
  */
 
 /**
  * \brief device ids of available periphery connected to ADC channels.
  */
 typedef enum {
     PHOTO = 0, /**< the photosensor (brighter ambience yields higher numbers) **/
     POTI = 1   /**< the potentiometer (rotation towards LEDs yields higher numbers) **/
 } ADCDEV;
 
 /**
  *  \brief perform a 10-bit A/D conversion for a specific channel/device.
  *
  *  \param dev id of a device connected to the ADC
  *
  *  \retval >0  10-bit result of the conversion
  *  \retval -1  invalid device id
  */
 int16_t sb_adc_read(ADCDEV dev);
 
 /** @}*/
 
 #endif
 

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