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Department Informatik  >  Informatik 4  >  Lehre  >  SS 2010  >  GSPiC  >  Übungen  >  Doku  >  libspicboard: ADC (Analog to Digital Converter)

SPiCboard library (libspicboard, revision 3032) API documentation

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ADC (Analog to Digital Converter)


Files

file  adc.h
 Interface to the AD-converter of the ATmega32, which allows to query the potentiometer and the photosensor of the board.

Enumerations

enum  ADCDEV { PHOTO = 0, POTI = 1 }
 device ids of available periphery connected to ADC channels. More...

Functions

int16_t sb_adc_read (ADCDEV dev)
 perform a 10-bit A/D conversion for a specific channel/device.

Enumeration Type Documentation

enum ADCDEV

device ids of available periphery connected to ADC channels.

Enumerator:
PHOTO  the photosensor (brighter ambience yields higher numbers)
POTI  the potentiometer (rotation towards LEDs yields higher numbers)


Function Documentation

int16_t sb_adc_read ( ADCDEV  dev  ) 

perform a 10-bit A/D conversion for a specific channel/device.

Parameters:
dev id of a device connected to the ADC
Returns:
the positive 10-bit result of the conversion, or a negative value on error
Return values:
-1 invalid device id

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