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resolved mfrc522.PCD_Init() hang on teensy LC #344

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resolved mfrc522.PCD_Init() hang on teensy LC #344

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2 changes: 1 addition & 1 deletion src/MFRC522.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -179,7 +179,7 @@ void MFRC522::PCD_Init() {
if (_resetPowerDownPin != UNUSED_PIN) {
// Set the resetPowerDownPin as digital output, do not reset or power down.
pinMode(_resetPowerDownPin, OUTPUT);

delay(1);
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Does yield() also solve the problem?

if (digitalRead(_resetPowerDownPin) == LOW) { // The MFRC522 chip is in power down mode.
digitalWrite(_resetPowerDownPin, HIGH); // Exit power down mode. This triggers a hard reset.
// Section 8.8.2 in the datasheet says the oscillator start-up time is the start up time of the crystal + 37,74μs. Let us be generous: 50ms.
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