adc.h File Reference

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

#include <stdint.h>

Go to the source code of this file.

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.

---

Detailed Description

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

Version:

$Rev: 149 $

---

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