Module `1280.adc` - ADC routines for the ATmega1280

Index

Constant AREF - Symbolic constant for signaling the use the external AREF reference
Constant INTERNAL - Symbolic constant for signaling the use the internal 1.1v reference
Constant VCC - Symbolic constant for signaling the use the VCC voltage reference
Process adc.aref - Helper function for performing an ADC using the AREF
Process adc.base - Perform an Analog-to-Digital Conversion on the given AVR pin, and writes out the result
Process adc.vcc - Helper function for performing an ADC using the VCC

VAL INT VCC

Symbolic constant for signaling the use the VCC voltage reference.

VAL INT INTERNAL

Symbolic constant for signaling the use the internal 1.1v reference.

VAL INT AREF

Symbolic constant for signaling the use the external AREF reference.

PROC adc.base (VAL INT avr.pin, VAL INT ref, RESULT INT v)

Perform an Analog-to-Digital Conversion on the given AVR pin, and writes out the result.

`VAL INT`	`avr.pin`	The AVR pin on which to perform the ADC.
`VAL INT`	`ref`	Which voltage reference to use as the comparison. Can be VCC, INTERNAL, or AREF. WARNING:drew 20100713 Is there only one AREF pin on the Mega boards?
`RESULT INT`	`v`	The INT that will be used to store the analog read.

INLINE PROC adc.aref (VAL INT avr.pin, RESULT INT v)

Helper function for performing an ADC using the AREF.

`VAL INT`	`avr.pin`	The AVR pin on which to perform the ADC.
`RESULT INT`	`v`	The INT that will be used to store the analog read.

INLINE PROC adc.vcc (VAL INT avr.pin, RESULT INT v)

Helper function for performing an ADC using the VCC.

`VAL INT`	`avr.pin`	The AVR pin on which to perform the ADC.
`RESULT INT`	`v`	The INT that will be used to store the analog read.