SFBPower.h File Reference

Power control and monitoring routines for the SFB. More...

#include "SFBTypes.h"
#include "SFBConstants.h"
#include "SFBAssert.h"

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Functions
int	powerDraw ()
int	powerDraw (u32 face)
int	rawPower (u32 face)
s32	faceVoltage (u32 face, bool smoothed=true)
	What is the current voltage measurement on face? Returns a backwards-averaged value if smoothed is true or absent; returns the latest available sample if smoothed is present and false.
s32	railVoltage (bool smoothed=true)
	Access current main (VEE) rail voltage.
int	rawVoltage ()
void	powerOut (u32 face, int on)
	Turn on (on != 0) or off (on == 0) the outbound power on face.
bool	isPowerOut (u32 face)
	True if output power is active to face, false otherwise.
void	powerIn (u32 face, int on)
	Control inbound power -- NOTE THIS CODE IS UNTESTED!
void	initPowerOuts ()

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Detailed Description

Power control and monitoring routines for the SFB.

Author:

David H. Ackley.

Date:

(C) 2009 All rights reserved.

Code License:

The GNU Lesser General Public License

License Note:

All code samples shown in documentation are placed into the public domain.

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Function Documentation

s32 faceVoltage	(	u32	face,
		bool	smoothed = true
	)

What is the current voltage measurement on face? Returns a backwards-averaged value if smoothed is true or absent; returns the latest available sample if smoothed is present and false.

Note that the calculated voltages are based on the datasheet properties of the ADC and the nominal values of the (1%) scaling resistors on the board, so the resulting values can differ substantially from the true voltage and from one board to another, but should be relatively consistent internally.

Returns:

Millivolts at face

Blinks:

E_API_BAD_FACE if face is not one of NORTH..WEST

Since:

0.9.7

bool isPowerOut

(

u32

face

)

True if output power is active to face, false otherwise.

Blinks:

E_API_BAD_FACE if face is not one of NORTH..WEST

Since:

0.9.11

void powerOut	(	u32	face,
		int	on
	)

Turn on (on != 0) or off (on == 0) the outbound power on face.

Blinks:

E_API_BAD_FACE if face is not one of NORTH..WEST

s32 railVoltage

(

bool

smoothed = true

)

Access current main (VEE) rail voltage.

Returns a backwards-averaged value if smoothed is true or absent; returns the latest available sample if smoothed is present and false.

Be aware that, unless the hardware has been calibrated, the calculated voltages are based on the datasheet properties of the ADC and the nominal values of the (1%) scaling resistors on the board, so the resulting values can differ significantly from the true voltage and from face to face and from board to board, but should be relatively consistent on a given face.

Returns:

Smoothed or latest millivolts measured on the requested rail

Since:

0.9.7