mirror of
https://github.com/xreef/PCF8574_library.git
synced 2024-08-30 18:12:18 +00:00
volatile variable fix and multiple algorithm for encoder
This commit is contained in:
Renzo Mischianti
parent
d3503ed393
commit
668fdcad25
2439
PCF8574.Doxyfile
2439
PCF8574.Doxyfile
File diff suppressed because it is too large
Load Diff
328
PCF8574.cpp
328
PCF8574.cpp
@ -369,24 +369,35 @@ bool PCF8574::checkProgression(byte oldValA, byte oldValB, byte newValA, byte ne
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}
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#ifdef BASIC_ENCODER_ALGORITHM
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bool PCF8574::readEncoderValue(uint8_t pinA, uint8_t pinB, volatile long *encoderValue){
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bool PCF8574::readEncoderValue(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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PCF8574::detachInterrupt();
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bool changed = false;
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byte na = PCF8574::digitalRead(pinA, true);
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byte nb = PCF8574::digitalRead(pinB, true);
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byte encoderPinALast = (encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (encoderValues & bit(pinB))>0?HIGH:LOW;
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byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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DEBUG_PRINT(pinA);
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DEBUG_PRINT(" TO --> ");
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DEBUG_PRINT(encoderPinALast);
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DEBUG_PRINT(encoderPinBLast);
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DEBUG_PRINT(" - ");
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DEBUG_PRINT(na);
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DEBUG_PRINT(nb);
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DEBUG_PRINTLN();
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if ((encoderPinALast!=na || encoderPinBLast!=nb) && (encoderPinALast == LOW) && (na == HIGH)) {
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bool vCW = checkProgression(encoderPinALast, encoderPinBLast, na, nb, validCW);
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bool vCCW = checkProgression(encoderPinALast, encoderPinBLast, na, nb, validCCW);
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// bool vCW = checkProgression(encoderPinALast, encoderPinBLast, na, nb, validCW);
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// bool vCCW = checkProgression(encoderPinALast, encoderPinBLast, na, nb, validCCW);
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if (nb == LOW) {
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*encoderValue = *encoderValue - 1;
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*encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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changed = true;
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} else {
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*encoderValue = *encoderValue + 1;
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*encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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changed = true;
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}
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@ -401,21 +412,166 @@ bool PCF8574::checkProgression(byte oldValA, byte oldValB, byte newValA, byte ne
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}
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encoderValues = (encoderPinALast!=na)?encoderValues ^ bit(pinA):encoderValues;
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encoderValues = (encoderPinBLast!=nb)?encoderValues ^ bit(pinB):encoderValues;
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this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):this->encoderValues;
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this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):this->encoderValues;
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PCF8574::attachInterrupt();
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return changed;
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}
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int8_t PCF8574::readEncoderValue(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValue(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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#endif
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#ifdef SEQUENCE_ENCODER_ALGORITHM
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bool PCF8574::readEncoderValueSequence(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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PCF8574::detachInterrupt();
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bool changed = false;
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delay(100);
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byte na = PCF8574::digitalRead(pinA, true);
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byte nb = PCF8574::digitalRead(pinB, true);
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byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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DEBUG_PRINT(pinA);
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DEBUG_PRINT(" TO --> ");
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DEBUG_PRINT(encoderPinALast);
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DEBUG_PRINT(encoderPinBLast);
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DEBUG_PRINT(" - ");
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DEBUG_PRINT(na);
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DEBUG_PRINT(nb);
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DEBUG_PRINT(" -- ");
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int encoded = (na << 1) | nb; //converting the 2 pin value to single number
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int lastEncoded = (encoderPinALast << 1) | encoderPinBLast;
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int sum = (lastEncoded << 2) | encoded; //adding it to the previous encoded value
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DEBUG_PRINT("sum - ");
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DEBUG_PRINT(sum, BIN);
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DEBUG_PRINT(" enc - ");
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DEBUG_PRINT( *encoderValue);
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if(
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sum == 0b1101
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|| sum == 0b0100
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|| sum == 0b0010
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|| sum == 0b1011
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){
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// encoderValue ++;
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*encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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changed = true;
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}
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if(
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sum == 0b1110
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|| sum == 0b0111
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|| sum == 0b0001
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|| sum == 0b1000
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) {
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*encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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changed = true;
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// encoderValue --;
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}
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DEBUG_PRINT(" enc next - ");
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DEBUG_PRINTLN( *encoderValue);
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this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):this->encoderValues;
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this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):this->encoderValues;
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PCF8574::attachInterrupt();
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return changed;
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}
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int8_t PCF8574::readEncoderValueSequence(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValueSequence(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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#endif
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#ifdef SEQUENCE_ENCODER_ALGORITHM_REDUCED
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bool PCF8574::readEncoderValueSequenceReduced(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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PCF8574::detachInterrupt();
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bool changed = false;
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delay(100);
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byte na = PCF8574::digitalRead(pinA, true);
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byte nb = PCF8574::digitalRead(pinB, true);
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byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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DEBUG_PRINT(pinA);
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DEBUG_PRINT(" TO --> ");
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DEBUG_PRINT(encoderPinALast);
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DEBUG_PRINT(encoderPinBLast);
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DEBUG_PRINT(" - ");
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DEBUG_PRINT(na);
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DEBUG_PRINT(nb);
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DEBUG_PRINT(" -- ");
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int encoded = (na << 1) | nb; //converting the 2 pin value to single number
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int lastEncoded = (encoderPinALast << 1) | encoderPinBLast;
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int sum = (lastEncoded << 2) | encoded; //adding it to the previous encoded value
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DEBUG_PRINT("sum - ");
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DEBUG_PRINT(sum, BIN);
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DEBUG_PRINT(" enc - ");
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DEBUG_PRINT( *encoderValue);
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if(
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sum == 0b1101
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// || sum == 0b0100
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|| sum == 0b0010
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// || sum == 0b1011
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){
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// encoderValue ++;
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*encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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changed = true;
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}
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if(
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sum == 0b1110
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// || sum == 0b0111
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|| sum == 0b0001
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// || sum == 0b1000
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) {
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*encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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changed = true;
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// encoderValue --;
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}
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DEBUG_PRINT(" enc next - ");
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DEBUG_PRINTLN( *encoderValue);
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this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):this->encoderValues;
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this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):this->encoderValues;
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PCF8574::attachInterrupt();
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return changed;
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}
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int8_t PCF8574::readEncoderValueSequenceReduced(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValueSequenceReduced(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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#endif
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#ifdef MISCHIANTI_ENCODER_ALGORITHM
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bool PCF8574::readEncoderValue(uint8_t pinA, uint8_t pinB, volatile long *encoderValue){
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bool PCF8574::readEncoderValueMischianti(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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PCF8574::detachInterrupt();
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bool changed = false;
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byte na = PCF8574::digitalRead(pinA, true);
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byte nb = PCF8574::digitalRead(pinB, true);
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byte encoderPinALast = (encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (encoderValues & bit(pinB))>0?HIGH:LOW;
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byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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if ((encoderPinALast!=na || encoderPinBLast!=nb) && ((encoderPinALast == LOW) || encoderPinALast==encoderPinBLast) && (na == HIGH)) {
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DEBUG_PRINT("TO --> ");
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@ -427,26 +583,156 @@ bool PCF8574::checkProgression(byte oldValA, byte oldValB, byte newValA, byte ne
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DEBUG_PRINTLN();
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if (nb == LOW && nb!=na) {
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*encoderValue = *encoderValue + 1;
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*encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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changed = true;
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} else if (nb==na && encoderPinALast==encoderPinBLast) {
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*encoderValue = *encoderValue - 1;
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*encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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changed = true;
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}
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}
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// encoderValues = encoderValues & (~(bit(pinA) | bit(pinB)));
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// if (na == HIGH){
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// encoderValues = encoderValues | bit(pinA);
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// }
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// if (nb == HIGH){
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// encoderValues = encoderValues | bit(pinA);
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// }
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if (encoderPinALast!=na || encoderPinBLast!=nb){
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this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):this->encoderValues;
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this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):this->encoderValues;
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}
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PCF8574::attachInterrupt();
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return changed;
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}
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int8_t PCF8574::readEncoderValueMischianti(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValueMischianti(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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#endif
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//#ifdef MISCHIANTI_ENCODER_ALGORITHM_EVOLVED
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// bool PCF8574::readEncoderValueEvolved(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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// PCF8574::detachInterrupt();
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// bool changed = false;
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//
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// byte na = PCF8574::digitalRead(pinA, true);
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// byte nb = PCF8574::digitalRead(pinB, true);
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//
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// byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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// byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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//
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//// Serial.print(pinA);
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//// Serial.print(" TO --> ");
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//// Serial.print(encoderPinALast);
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//// Serial.print(encoderPinBLast);
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//// Serial.print(" - ");
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//// Serial.print(na);
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//// Serial.print(nb);
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//
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// if (
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//
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// ((encoderPinALast!=na || encoderPinBLast!=nb) && ((encoderPinALast == LOW) || encoderPinALast==encoderPinBLast) && (na == HIGH))
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// || ((encoderPinALast!=na || encoderPinBLast!=nb) && ((encoderPinALast == HIGH) || encoderPinALast==encoderPinBLast) && (na == LOW))
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// ){
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// DEBUG_PRINT("TO --> ");
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// DEBUG_PRINT(encoderPinALast);
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// DEBUG_PRINT(encoderPinBLast);
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// DEBUG_PRINT(" - ");
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// DEBUG_PRINT(na);
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// DEBUG_PRINT(nb);
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// DEBUG_PRINTLN();
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//
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//// Serial.print (" <------ ");
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//
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// if (nb == LOW && nb!=na) {
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// *encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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// changed = true;
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// } else if (nb==na && encoderPinALast==encoderPinBLast) {
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// *encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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// changed = true;
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// }
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// }
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//// Serial.println();
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//// encoderValues = encoderValues & (~(bit(pinA) | bit(pinB)));
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//// if (na == HIGH){
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//// encoderValues = encoderValues | bit(pinA);
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//// }
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//// if (nb == HIGH){
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//// encoderValues = encoderValues | bit(pinA);
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//// }
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//
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// if (encoderPinALast!=na || encoderPinBLast!=nb){
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// this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):this->encoderValues;
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// this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):this->encoderValues;
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// }
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//
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// PCF8574::attachInterrupt();
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// return changed;
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// }
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// int8_t PCF8574::readEncoderValueEvolved(uint8_t pinA, uint8_t pinB) {
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// volatile long encoderValue = 0;
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// PCF8574::readEncoderValueEvolved(pinA, pinB, &encoderValue);
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// return encoderValue;
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// }
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//
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//#endif
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#ifdef POKI_ENCODER_ALGORITHM
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bool PCF8574::readEncoderValuePoki(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation){
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PCF8574::detachInterrupt();
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bool changed = false;
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byte na = PCF8574::digitalRead(pinA, true);
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byte nb = PCF8574::digitalRead(pinB, true);
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byte encoderPinALast = (this->encoderValues & bit(pinA))>0?HIGH:LOW;
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byte encoderPinBLast = (this->encoderValues & bit(pinB))>0?HIGH:LOW;
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DEBUG_PRINT("TO --> ");
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DEBUG_PRINT(encoderPinALast);
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DEBUG_PRINT(encoderPinBLast);
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DEBUG_PRINT(" - ");
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DEBUG_PRINT(na);
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DEBUG_PRINT(nb);
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DEBUG_PRINTLN();
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if ((encoderPinALast!=na || encoderPinBLast!=nb) && ((encoderPinALast == LOW) || encoderPinALast==encoderPinBLast) && (na == HIGH)) {
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DEBUG_PRINT("TO --> ");
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DEBUG_PRINT(encoderPinALast);
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DEBUG_PRINT(encoderPinBLast);
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DEBUG_PRINT(" - ");
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DEBUG_PRINT(na);
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DEBUG_PRINT(nb);
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DEBUG_PRINTLN();
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if (na && !nb) {
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if (encoderPinBLast) {
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*encoderValue = *encoderValue + (!reverseRotation?+1:-1);
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} else {
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*encoderValue = *encoderValue + (!reverseRotation?-1:+1);
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}
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changed = true;
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}
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}
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encoderValues = (encoderPinALast!=na)?encoderValues ^ bit(pinA):encoderValues;
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encoderValues = (encoderPinBLast!=nb)?encoderValues ^ bit(pinB):encoderValues;
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this->encoderValues = (encoderPinALast!=na)?this->encoderValues ^ bit(pinA):encoderValues;
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this->encoderValues = (encoderPinBLast!=nb)?this->encoderValues ^ bit(pinB):encoderValues;
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PCF8574::attachInterrupt();
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return changed;
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}
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int8_t PCF8574::readEncoderValuePoki(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValue(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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#endif
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int8_t PCF8574::readEncoderValue(uint8_t pinA, uint8_t pinB) {
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volatile long encoderValue = 0;
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PCF8574::readEncoderValue(pinA, pinB, &encoderValue);
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return encoderValue;
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}
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/**
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* Read value from i2c and bufferize it
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37
PCF8574.h
37
PCF8574.h
@ -2,7 +2,7 @@
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* PCF8574 GPIO Port Expand
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*
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* AUTHOR: Renzo Mischianti
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* VERSION: 2.2.0
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* VERSION: 2.2.2
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*
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* https://www.mischianti.org/2019/01/02/pcf8574-i2c-digital-i-o-expander-fast-easy-usage/
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*
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@ -47,7 +47,7 @@
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#define DEFAULT_SCL SCL;
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// Uncomment to enable printing out nice debug messages.
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// #define PCF8574_DEBUG
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// #define PCF8574_DEBUG
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// Uncomment for low memory usage this prevent use of complex DigitalInput structure and free 7byte of memory
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// #define PCF8574_LOW_MEMORY
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@ -58,8 +58,11 @@
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//#define PCF8574_SOFT_INITIALIZATION
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// Select an algorithm to manage encoder progression
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//#define BASIC_ENCODER_ALGORITHM
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#define MISCHIANTI_ENCODER_ALGORITHM
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#define BASIC_ENCODER_ALGORITHM
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// #define MISCHIANTI_ENCODER_ALGORITHM
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// #define SEQUENCE_ENCODER_ALGORITHM_REDUCED
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// #define SEQUENCE_ENCODER_ALGORITHM
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// #define POKI_ENCODER_ALGORITHM
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// Define where debug output will be printed.
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#define DEBUG_PRINTER Serial
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@ -152,8 +155,30 @@ public:
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#endif
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bool digitalWrite(uint8_t pin, uint8_t value);
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bool readEncoderValue(uint8_t pinA, uint8_t pinB, volatile long *encoderValue);
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#ifdef MISCHIANTI_ENCODER_ALGORITHM
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bool readEncoderValueMischianti(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
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int8_t readEncoderValueMischianti(uint8_t pinA, uint8_t pinB);
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#endif
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#ifdef POKI_ENCODER_ALGORITHM
|
||||
bool readEncoderValuePoki(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
|
||||
int8_t readEncoderValuePoki(uint8_t pinA, uint8_t pinB);
|
||||
#endif
|
||||
|
||||
// bool readEncoderValueEvolved(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
|
||||
// int8_t readEncoderValueEvolved(uint8_t pinA, uint8_t pinB);
|
||||
|
||||
#ifdef SEQUENCE_ENCODER_ALGORITHM
|
||||
bool readEncoderValueSequence(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
|
||||
int8_t readEncoderValueSequence(uint8_t pinA, uint8_t pinB);
|
||||
#endif
|
||||
#ifdef SEQUENCE_ENCODER_ALGORITHM_REDUCED
|
||||
bool readEncoderValueSequenceReduced(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
|
||||
int8_t readEncoderValueSequenceReduced(uint8_t pinA, uint8_t pinB);
|
||||
#endif
|
||||
#ifdef BASIC_ENCODER_ALGORITHM
|
||||
bool readEncoderValue(uint8_t pinA, uint8_t pinB, volatile long *encoderValue, bool reverseRotation = false);
|
||||
int8_t readEncoderValue(uint8_t pinA, uint8_t pinB);
|
||||
#endif
|
||||
|
||||
int getLatency() const {
|
||||
return latency;
|
||||
@ -217,7 +242,7 @@ private:
|
||||
|
||||
byte writeByteBuffered = B00000000;
|
||||
|
||||
byte encoderValues = B00000000;
|
||||
volatile byte encoderValues = B00000000;
|
||||
|
||||
uint8_t prevNextCode = 0;
|
||||
uint16_t store=0;
|
||||
|
||||
@ -21,6 +21,9 @@ Tutorial:
|
||||
|
||||
To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder PCF8574. Check that the PCF8574 folder contains `PCF8574\\.cpp` and `PCF8574.h`. Place the DHT library folder your `<arduinosketchfolder>/libraries/` folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.
|
||||
|
||||
## Changelog
|
||||
23/11/2020: v2.2.2 Add multiple implementation for encoder management (you can enable by uncomment relative define)
|
||||
|
||||
# Reef complete PCF8574 PCF8574AP digital input and output expander with i2c bus.
|
||||
I try to simplify the use of this IC, with a minimal set of operation.
|
||||
|
||||
|
||||
1171
doc/rtf/refman.rtf
1171
doc/rtf/refman.rtf
File diff suppressed because it is too large
Load Diff
@ -1,5 +1,5 @@
|
||||
name=PCF8574 library
|
||||
version=2.2.1
|
||||
version=2.2.2
|
||||
author=Renzo Mischianti <renzo.mischianti@gmail.com>
|
||||
maintainer=Renzo Mischianti <renzo.mischianti@gmail.com>
|
||||
sentence=Arduino/ESP8266 library for PCF8574
|
||||
|
||||
Loading…
Reference in New Issue
Block a user