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Core 1 panic'ed (Interrupt wdt timeout on CPU1) on ESP32 #218

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Core 1 panic'ed (Interrupt wdt timeout on CPU1) on ESP32 #218

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970795f
Break condition to avoid interrupt wdt timeout
jachik Dec 10, 2024
cc4c7ba
Removed double timeout-check
jachik Dec 17, 2024
382f84a
Code cosmetics
jachik Dec 17, 2024
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12 changes: 7 additions & 5 deletions DHT.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -304,6 +304,12 @@ bool DHT::read(bool force) {
for (int i = 0; i < 80; i += 2) {
cycles[i] = expectPulse(LOW);
cycles[i + 1] = expectPulse(HIGH);

if (cycles[i] == TIMEOUT || cycles[i + 1] == TIMEOUT) {
DEBUG_PRINTLN(F("DHT timeout waiting for data signal."));
_lastresult = false;
return _lastresult;
}
}
} // Timing critical code is now complete.

Expand All @@ -312,11 +318,7 @@ bool DHT::read(bool force) {
for (int i = 0; i < 40; ++i) {
uint32_t lowCycles = cycles[2 * i];
uint32_t highCycles = cycles[2 * i + 1];
if ((lowCycles == TIMEOUT) || (highCycles == TIMEOUT)) {
DEBUG_PRINTLN(F("DHT timeout waiting for pulse."));
_lastresult = false;
return _lastresult;
}

data[i / 8] <<= 1;
// Now compare the low and high cycle times to see if the bit is a 0 or 1.
if (highCycles > lowCycles) {
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