sensors.c File Reference

Routines for handling Sensor values. More...

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Functions
double	P3FromADC (uint16_t val)
	Converts a P3-Raw ADC Value to Voltage. More...
double	P5FromADC (uint16_t val)
	Converts a P5-Raw ADC Value to Voltage. More...
double	SWUnregFromADC (uint16_t val)
	Converts a SWUnreg-Raw ADC Value to Voltage. More...
double	TempFromADC (void)
	Converts the ADC-Temp Value to Celsius. More...
double	UnregFromADC (uint16_t val)
	Converts a Unreg-Raw ADC Value to Voltage. More...

Detailed Description

Routines for handling Sensor values.

Copyright

Copyright (C) 2009 Robert Loos http://www.loosweb.de

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Function Documentation

P3FromADC()

double P3FromADC

(

uint16_t

val

)

Converts a P3-Raw ADC Value to Voltage.

Note

The JTAGEN-Fuse has to be cleared to receive accurate values for P3 since the ADC4 (PORTF4) pin will source current while JTAG is enabled! The error may well exceed 15% FSR. This has to be done before the final calibration!
During debugging via JTAG, P3 is not measurable and Jumper X11 has to be disconnected for the voltage dividers not to interfere with the JTAG interface!

Parameters

val	The ADC Value

Returns

The Voltage

References config, and confStruct_t::P3VoltsPerLSB.

Referenced by CmdStat(), EnterDouble(), FTestSupply(), and ShowScreen().

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P5FromADC()

double P5FromADC

(

uint16_t

val

)

Converts a P5-Raw ADC Value to Voltage.

Parameters

val	The ADC Value

Returns

The Voltage

References config, and confStruct_t::P5VoltsPerLSB.

Referenced by CmdStat(), EnterDouble(), FTestSupply(), ShowScreen(), and TempFromADC().

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SWUnregFromADC()

double SWUnregFromADC

(

uint16_t

val

)

Converts a SWUnreg-Raw ADC Value to Voltage.

Parameters

val	The ADC Value

Returns

The Voltage

References config, and confStruct_t::SWUnregVoltsPerLSB.

Referenced by CmdStat(), EnterDouble(), FTestSWUnreg(), and ShowScreen().

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TempFromADC()

double TempFromADC

(

void

)

Converts the ADC-Temp Value to Celsius.

Note

This function takes extensive floating point operations and may thus block for about 400us.

Returns

The Temperature in Celsius

References ADCData_t::ADC_P5, ADCData_t::ADC_Temp, ADCData, ADCDataAvg, ADCData_t::named, and P5FromADC().

Referenced by CmdStat(), and ShowScreen().

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UnregFromADC()

double UnregFromADC

(

uint16_t

val

)

Converts a Unreg-Raw ADC Value to Voltage.

Parameters

val	The ADC Value

Returns

The Voltage

References config, and confStruct_t::UnregVoltsPerLSB.

Referenced by CmdStat(), EnterDouble(), FTestSupply(), FTestSWUnreg(), main(), and ShowScreen().

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