adc_math.h File Reference

Detailed Description

todo: all this looks to be about internal ADC, merge this file with adc_inputs.h? these macro are also used in simulator so maybe not really merging with adc_inputs.h until simulator get's it's own implementation?

Date

Mar 18, 2014

Author

Andrey Belomutskiy, (c) 2012-2020

Definition in file adc_math.h.

Functions
expected< float >	adcGetRawVoltage (const char *msg, adc_channel_e channel)
expected< float >	adcGetScaledVoltage (const char *msg, adc_channel_e channel)

Function Documentation

adcGetRawVoltage()

expected< float > adcGetRawVoltage	(	const char *	msg,
		adc_channel_e	channel
	)

Definition at line 78 of file adc_inputs.cpp.

                                                                           {
    float rawVoltage = adcRawValueToRawVoltage(adcGetRawValue(msg, hwChannel));
    int inputStatus = boardGetAnalogInputDiagnostic(hwChannel, rawVoltage);
 
    if (inputStatus == 0) {
        return expected(rawVoltage);
    }
 
    /* TODO: convert inputStatus to unexpected? */
    return unexpected;
}

Referenced by adcGetScaledVoltage(), adcPrintChannelReport(), AdcSubscription::PrintInfo(), printMAPInfo(), and AdcSubscription::UpdateSubscribers().

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adcGetScaledVoltage()

expected< float > adcGetScaledVoltage	(	const char *	msg,
		adc_channel_e	channel
	)

Definition at line 91 of file adc_inputs.cpp.

                                                                              {
    auto rawVoltage = adcGetRawVoltage(msg, hwChannel);
 
    if (rawVoltage) {
        // TODO: merge getAnalogInputDividerCoefficient() and boardAdjustVoltage() into single board hook?
        float voltage = rawVoltage.value_or(0) * getAnalogInputDividerCoefficient(hwChannel);
        return expected(boardAdjustVoltage(voltage, hwChannel));
    }
 
    return expected(rawVoltage);
}

Referenced by adcPrintChannelReport(), getAfr(), and updateRawSensors().

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