Voltage Reference framework

Classes
class	VREF
	Generic model for managing VREF for analog peripherals (ADC, analog comparator) More...
class	ArchAVR_VREF
	Implementation of a Voltage Reference controller for AVR series. More...
struct	ArchXT_VREFConfig
	Configuration structure for ArchXT_VREF. More...
class	ArchXT_VREF
	Implementation of a voltage reference controller for XT core series. More...

Controller requests definition for VREF
#define	AVR_CTLREQ_VREF_GET   (AVR_CTLREQ_BASE + 1)
#define	AVR_CTLREQ_VREF_SET   (AVR_CTLREQ_BASE + 2)

Detailed Description

Macro Definition Documentation

AVR_CTLREQ_VREF_GET

#define AVR_CTLREQ_VREF_GET   (AVR_CTLREQ_BASE + 1)

Request to interrogate the VREF controller and obtain a reference value.
The index shall be set to the required source (one of VREF::Source enum values)
For Internal references, data shall be set to the required channel, as an unsigned integer.
On return, data is set to the reference value as a double. Except for VCC, all values are relative to VCC.

AVR_CTLREQ_VREF_SET

#define AVR_CTLREQ_VREF_SET   (AVR_CTLREQ_BASE + 2)

Request to set VCC or AREF reference values.
The index shall be set to the required source (one of VREF::Source enum values but only VCC and VREF are accepted)
data shall be set to the required value as a double.
VCC shall be an absolute value in Volts, AREF shall be relative to VCC and contrainted to the range [0; 1].