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@ -16,8 +16,11 @@ |
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//using namespace std;
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TaskHandle_t Rotary::xTaskToNotify = NULL; |
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Rotary* Rotary::instance = NULL; |
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Rotary::Rotary() {} |
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Rotary::Rotary() { |
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instance = this; |
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} |
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bool Rotary::begin(uint8_t pinA, uint8_t pinB, uint8_t pinButton) { |
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this->pinA = pinA; |
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@ -44,82 +47,46 @@ void Rotary::cTaskWrapper(void* parameters) { |
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void Rotary::button_task(void *pvParameters) { |
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xTaskToNotify = xTaskGetCurrentTaskHandle(); |
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attachInterrupt(digitalPinToInterrupt(pinA), doEncoderA, CHANGE); |
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attachInterrupt(digitalPinToInterrupt(pinB), doEncoderB, CHANGE); |
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// attachInterrupt(digitalPinToInterrupt(pinButton), doButton, CHANGE);
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attachInterrupt(digitalPinToInterrupt(pinA), doEncoderA, RISING); |
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attachInterrupt(digitalPinToInterrupt(pinB), doEncoderB, RISING); |
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// attachInterrupt(digitalPinToInterrupt(pinButton), doButton, FALLING);
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uint32_t ulNotificationValue; |
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uint32_t ulStatusValue; |
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while(true) { |
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rotating = true; // reset the debouncer
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ulNotificationValue = xTaskNotifyWait(0x00, ULONG_MAX, &ulNotificationValue, portMAX_DELAY ); |
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Serial.printf("interrupt %d, rotating: %d\n", ulNotificationValue, rotating); |
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if( ulNotificationValue == 1 ) { |
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// debounce
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if ( rotating ) delay (1); // wait a little until the bouncing is done
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ulNotificationValue = xTaskNotifyWait(0x00, ULONG_MAX, &ulStatusValue, portMAX_DELAY ); |
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// Test transition, did things really change?
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if ( digitalRead(pinA) != A_set ) { // debounce once more
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A_set = !A_set; |
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// if ( rotating ) delay (1); // wait a little until the bouncing is done
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if( ulStatusValue == 1 ) { |
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// adjust counter + if A leads B
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if ( A_set && !B_set ) |
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encoderPos += 1; |
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rotating = false; // no more debouncing until loop() hits again
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changed(); |
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} |
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} else if ( ulNotificationValue == 2 ) { |
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if ( rotating ) delay (1); |
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if ( digitalRead(pinB) != B_set ) { |
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B_set = !B_set; |
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rotating = false; // no more debouncing until loop() hits again
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} else if ( ulStatusValue == 2 ) { |
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// adjust counter -1 if B leads A
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if ( B_set && !A_set ) |
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encoderPos -= 1; |
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rotating = false; |
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changed(); |
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} |
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} else if ( ulNotificationValue == 4 ) { |
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delay(1); |
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if ( digitalRead(pinButton) != Button_set ) { |
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Button_set = !Button_set; |
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rotating = false; // no more debouncing until loop() hits again
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} else if ( ulStatusValue == 4 ) { |
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Button_set = digitalRead(pinButton); |
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if (! Button_set ) { |
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encoderPos = 0; |
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} |
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} |
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} |
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} |
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} |
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/*
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// main loop, work is done by interrupt service routines, this one only prints stuff
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void loop() { |
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rotating = true; // reset the debouncer
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if (lastReportedPos != encoderPos) { |
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Serial.print("Index:"); |
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Serial.println(encoderPos, DEC); |
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lastReportedPos = encoderPos; |
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} |
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if (digitalRead(clearButton) == LOW ) { |
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encoderPos = 0; |
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} |
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} |
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*/ |
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void Rotary::changed() { |
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if (lastReportedPos != encoderPos) { |
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Serial.print("encoder: "); |
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Serial.println(encoderPos); |
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// if (callback) callback(encoderPos);
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if (callback) callback(encoderPos); |
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lastReportedPos = encoderPos; |
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} |
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rotating = true; // reset the debouncer
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} |
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bool Rotary::registerCallback(std::function<void(int)> callback) { |
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@ -132,27 +99,43 @@ void Rotary::doButton() { |
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configASSERT( xTaskToNotify != NULL ); |
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uint32_t intrBits = 4; |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithOverwrite, &xHigherPriorityTaskWoken ); |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithoutOverwrite, &xHigherPriorityTaskWoken ); |
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portYIELD_FROM_ISR(); //portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
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} |
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// Interrupt on A changing state
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void Rotary::doEncoderA() { |
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BaseType_t xHigherPriorityTaskWoken = pdFALSE; |
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if (instance->skipA) { |
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instance->skipA = false; |
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instance->debounceA = millis(); |
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return; |
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} |
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if (!digitalRead(instance->pinB) && ((millis() - instance->debounceA) > instance->debounceDelay)) { |
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instance->debounceA = millis(); |
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instance->skipB = true; |
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configASSERT( xTaskToNotify != NULL ); |
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uint32_t intrBits = 1; |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithOverwrite, &xHigherPriorityTaskWoken ); |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithoutOverwrite, &xHigherPriorityTaskWoken ); |
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portYIELD_FROM_ISR(); //portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
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} |
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} |
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// Interrupt on B changing state, same as A above
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void Rotary::doEncoderB() { |
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BaseType_t xHigherPriorityTaskWoken = pdFALSE; |
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if (instance->skipB) { |
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instance->skipB = false; |
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instance->debounceB = millis(); |
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return; |
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} |
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if (!digitalRead(instance->pinA) && ((millis() - instance->debounceB) > instance->debounceDelay)) { |
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instance->debounceB = millis(); |
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instance->skipA = true; |
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configASSERT( xTaskToNotify != NULL ); |
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uint32_t intrBits = 2; |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithOverwrite, &xHigherPriorityTaskWoken ); |
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xTaskNotifyFromISR( xTaskToNotify, intrBits, eSetValueWithoutOverwrite, &xHigherPriorityTaskWoken ); |
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portYIELD_FROM_ISR(); //portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
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} |
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} |
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