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Fix bug in mode of buffered readout when timer of ESP32 overflows and counts from 0 #70

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This commit is contained in:
Renzo Mischianti
2025-01-11 08:34:57 +01:00
parent fb05aecc88
commit 7314395ac1
1 changed files with 4 additions and 4 deletions
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8
PCF8574.cpp
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@ -245,8 +245,6 @@ bool PCF8574::begin(){
// ::attachInterrupt(digitalPinToInterrupt(_interruptPin), (*_interruptFunction), FALLING );
// }
PCF8574::attachInterrupt();
// inizialize last read
@ -755,7 +753,8 @@ bool PCF8574::checkProgression(byte oldValA, byte oldValB, byte newValA, byte ne
* @param force
*/
void PCF8574::readBuffer(bool force){
if (millis() > PCF8574::lastReadMillis+latency || _usingInterrupt || force){
// if (millis() > PCF8574::lastReadMillis+latency || _usingInterrupt || force){
if (millis() - PCF8574::lastReadMillis > latency || _usingInterrupt || force){
_wire->requestFrom(_address,(uint8_t)1);// Begin transmission to PCF8574 with the buttons
lastReadMillis = millis();
if(_wire->available()) // If bytes are available to be recieved
@ -888,7 +887,8 @@ uint8_t PCF8574::digitalRead(uint8_t pin, bool forceReadNow){
}else{
value = LOW;
}
}else if (forceReadNow || (millis() > PCF8574::lastReadMillis+latency)){
// }else if (forceReadNow || (millis() > PCF8574::lastReadMillis+latency)){
}else if (forceReadNow || (millis() - PCF8574::lastReadMillis > latency)){
DEBUG_PRINT(" ...Read from buffer... ");
_wire->requestFrom(_address,(uint8_t)1);// Begin transmission to PCF8574 with the buttons
lastReadMillis = millis();