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BUGFIX index pin interrupt
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src/Encoder.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -219,7 +219,7 @@ void Encoder::init(void (*doA)(), void(*doB)()){
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}
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// if index used intialise the index interrupt
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if(hasIndex() || doA != nullptr) {
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if(hasIndex() && doA != nullptr) {
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*digitalPinToPCMSK(index_pin) |= bit (digitalPinToPCMSKbit(index_pin)); // enable pin
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PCIFR |= bit (digitalPinToPCICRbit(index_pin)); // clear any outstanding interrupt
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PCICR |= bit (digitalPinToPCICRbit(index_pin)); // enable interrupt for the group

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