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Avoid recalculation of ADC vrefMv, add vrefMv to ADC_INTERNAL debug mode. (#8427) 

Avoid recalculation of ADC vrefMv, add vrefMv to ADC_INTERNAL debug mode.
This commit is contained in:
Michael Keller 2019-06-18 00:10:36 +12:00 committed by GitHub
parent f7f0c67808 74638da93e
commit 4b6c64fcff
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 2 deletions
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8
src/main/sensors/adcinternal.c
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@ -57,13 +57,14 @@ static uint16_t adcTempsensorValues[8];
movingAverageStateUint16_t adcTempsensorAverageState = { 0, adcTempsensorValues, 8, 0 } ; movingAverageStateUint16_t adcTempsensorAverageState = { 0, adcTempsensorValues, 8, 0 } ;
static int16_t coreTemperature; static int16_t coreTemperature;
static uint16_t vrefMv;
uint16_t getVrefMv(void) uint16_t getVrefMv(void)
{ {
#ifdef ADC_VOLTAGE_REFERENCE_MV #ifdef ADC_VOLTAGE_REFERENCE_MV
return ADC_VOLTAGE_REFERENCE_MV; return ADC_VOLTAGE_REFERENCE_MV;
#else #else
return 3300 * adcVrefintValue / adcVREFINTCAL; return vrefMv;
#endif #endif
} }
@ -86,12 +87,15 @@ void adcInternalProcess(timeUs_t currentTimeUs)
adcVrefintValue = updateMovingAverageUint16(&adcVrefintAverageState, vrefintSample); adcVrefintValue = updateMovingAverageUint16(&adcVrefintAverageState, vrefintSample);
adcTempsensorValue = updateMovingAverageUint16(&adcTempsensorAverageState, tempsensorSample); adcTempsensorValue = updateMovingAverageUint16(&adcTempsensorAverageState, tempsensorSample);
int32_t adcTempsensorAdjusted = (int32_t)adcTempsensorValue * 3300 / getVrefMv(); vrefMv = 3300 * adcVrefintValue / adcVREFINTCAL;
int32_t adcTempsensorAdjusted = (int32_t)(adcTempsensorValue * 3300) / vrefMv;
coreTemperature = ((adcTempsensorAdjusted - adcTSCAL1) * adcTSSlopeK + 30 * 1000 + 500) / 1000; coreTemperature = ((adcTempsensorAdjusted - adcTSCAL1) * adcTSSlopeK + 30 * 1000 + 500) / 1000;
DEBUG_SET(DEBUG_ADC_INTERNAL, 0, coreTemperature); DEBUG_SET(DEBUG_ADC_INTERNAL, 0, coreTemperature);
DEBUG_SET(DEBUG_ADC_INTERNAL, 1, vrefintSample); DEBUG_SET(DEBUG_ADC_INTERNAL, 1, vrefintSample);
DEBUG_SET(DEBUG_ADC_INTERNAL, 2, tempsensorSample); DEBUG_SET(DEBUG_ADC_INTERNAL, 2, tempsensorSample);
DEBUG_SET(DEBUG_ADC_INTERNAL, 3, vrefMv);
adcInternalStartConversion(); // Start next conversion adcInternalStartConversion(); // Start next conversion
} }