MeshCore/src/helpers/NRF52Board.cpp

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#if defined(NRF52_PLATFORM)
#include "NRF52Board.h"
// Temperature from NRF52 MCU
float NRF52Board::getMCUTemperature() {
NRF_TEMP->TASKS_START = 1; // Start temperature measurement
long startTime = millis();
while (NRF_TEMP->EVENTS_DATARDY == 0) { // Wait for completion. Should complete in 50us
if(millis() - startTime > 5) { // To wait 5ms just in case
NRF_TEMP->TASKS_STOP = 1;
return NAN;
}
}
NRF_TEMP->EVENTS_DATARDY = 0; // Clear event flag
int32_t temp = NRF_TEMP->TEMP; // In 0.25 *C units
NRF_TEMP->TASKS_STOP = 1;
return temp * 0.25f; // Convert to *C
}
#endif