mirror of
https://github.com/erik-toth/audio-synth.git
synced 2025-12-06 17:20:01 +00:00
Software Update 4: Sequencer Block
Sequencer Klasse eingebaut Überprüfung noch ausständig
This commit is contained in:
Erik Tóth
@@ -8,6 +8,8 @@
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#include "FIRMWARE.h"
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// ==================== Helper-Functions ====================
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bool isNotKey(Key k)
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{
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if((k.row == NOT_A_KEY.row) && (k.col == NOT_A_KEY.col)) return true;
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@@ -20,6 +22,8 @@ bool isEqualKey(Key k1, Key k2)
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else return false;
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}
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// ==================== Keyboard ====================
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Keyboard::Keyboard(uint8_t nRows, uint8_t nCols, uint8_t *pinsRow, uint8_t *pinsCol)
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{
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_nRows = nRows;
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@@ -171,6 +175,8 @@ void Keyboard::_removeActiveKey(uint8_t row, uint8_t col)
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}
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}
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// ==================== CV ====================
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/*!
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* @param dac Adafruit_MCP4728 object
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* @param wire TwoWire object
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@@ -232,4 +238,264 @@ uint8_t CV::_getKeyToVoltageIndex(uint8_t row, uint8_t col)
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uint8_t CV::_getKeyToVoltageIndex(Key k)
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{
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return (k.row*_col + k.col);
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}
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// ==================== SequencerBlock ====================
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/*!
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* @param maxDurationMS maximum loop duration of recording in milliseconds
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* @param timeoutMS stops recording after timeout in milliseconds
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* @brief TODO
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*/
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SequencerBlock::SequencerBlock(uint16_t maxDurationMS, uint16_t timeoutMS)
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{
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_maxDurationMS = maxDurationMS;
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_timeoutMS = timeoutMS;
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_stepCount = 0;
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_currentStep = 0;
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_isRecording = false;
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_isPlaying = false;
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_loop = false;
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_lastVoltage = 0;
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_recordStartTime = 0;
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_lastStepTime = 0;
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_playStartTime = 0;
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_stepStartTime = 0;
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}
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/*!
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* @brief starts sequence block recording
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*/
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void SequencerBlock::startRecord()
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{
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if(_isPlaying) stopPlay();
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clear();
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_isRecording = true;
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_recordStartTime = millis();
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_lastStepTime = _recordStartTime;
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_lastVoltage = 0;
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}
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/*!
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* @brief stops sequence block recording and saves it
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*/
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void SequencerBlock::stopRecord()
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{
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if(!_isRecording) return;
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_finishCurrentStep();
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_isRecording = false;
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}
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/*!
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* @brief adds step to sequencer block
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* @param voltage voltage step for CV-Gate in millivolts
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*/
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void SequencerBlock::addStep(uint16_t voltage)
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{
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if(!_isRecording) return;
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if(!_canAddStep()) return;
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unsigned long now = millis();
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// Wenn sich die Spannung geändert hat, vorherigen Schritt abschließen
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if(voltage != _lastVoltage && _stepCount > 0)
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{
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_finishCurrentStep();
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}
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// Neuen Schritt beginnen oder vorhandenen aktualisieren
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if(voltage != _lastVoltage || _stepCount == 0)
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{
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if(_canAddStep())
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{
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_sequence[_stepCount].voltage = voltage;
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_sequence[_stepCount].duration = 0;
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_lastStepTime = now;
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_lastVoltage = voltage;
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}
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}
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else
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{
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if(_stepCount > 0)
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{
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_sequence[_stepCount - 1].duration = now - _lastStepTime;
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}
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}
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}
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/*!
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* @brief checks if sequencer block is recording
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* @return true or false
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*/
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bool SequencerBlock::isRecording()
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{
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return _isRecording;
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}
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/*!
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* @brief starts playing sequencer block
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*/
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void SequencerBlock::startPlay()
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{
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if(_stepCount == 0) return;
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if(_isRecording) stopRecord();
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_isPlaying = true;
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_currentStep = 0;
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_playStartTime = millis();
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_stepStartTime = _playStartTime;
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}
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/*!
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* @brief stops playing sequencer block
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*/
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void SequencerBlock::stopPlay()
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{
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_isPlaying = false;
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_currentStep = 0;
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}
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/*!
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* @brief updates sequencer block
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* @attention Has to be called every cycle!
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*/
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void SequencerBlock::update()
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{
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if(!_isPlaying || _stepCount == 0) return;
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unsigned long now = millis();
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unsigned long elapsed = now - _stepStartTime;
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// Prüfen ob aktueller Schritt abgelaufen ist
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if(elapsed >= _sequence[_currentStep].duration)
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{
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_currentStep++;
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// Sequenz-Ende erreicht?
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if(_currentStep >= _stepCount)
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{
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if(_loop)
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{
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_currentStep = 0;
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_stepStartTime = now;
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}
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else
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{
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stopPlay();
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return;
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}
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}
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else
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{
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_stepStartTime = now;
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}
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}
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}
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/*!
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* @brief checks if sequencer block is playing
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* @return true or false
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*/
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bool SequencerBlock::isPlaying()
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{
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return _isPlaying;
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}
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/*!
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* @brief clears recording of sequencer block
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*/
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void SequencerBlock::clear()
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{
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_stepCount = 0;
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_currentStep = 0;
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_lastVoltage = 0;
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for(uint8_t i = 0; i < N_MAX_SEQUENCE_STEPS; i++)
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{
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_sequence[i].voltage = 0;
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_sequence[i].duration = 0;
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}
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}
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/*!
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* @brief sets configuation for looping over the recording
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* @param loop if set to true, saved recording gets played in a loop
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*/
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void SequencerBlock::setLoop(bool loop)
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{
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_loop = loop;
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}
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/*!
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* @brief checks if the recording time limit has been reached
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* @return true of false
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*/
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bool SequencerBlock::timeLimitReached()
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{
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if(!_isRecording) return false;
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unsigned long now = millis();
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unsigned long elapsed = now - _recordStartTime;
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return (elapsed >= _maxDurationMS);
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}
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/*!
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* @brief returns the currently recoreded steps
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* @return uint8_t between 0 and 128
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*/
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uint8_t SequencerBlock::getStepCount()
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{
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return _stepCount;
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}
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/*!
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* @brief if sequencer is playing, returns the current voltage level
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* @return uint16_t voltage range for CV
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*/
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uint16_t SequencerBlock::getCurrentVoltage()
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{
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if(!_isPlaying || _stepCount == 0) return 0;
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if(_currentStep >= _stepCount) return 0;
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return _sequence[_currentStep].voltage;
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}
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/*!
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* @brief gets the length of the recording in the block
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* @return uint16_t time in milliseconds
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*/
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uint16_t SequencerBlock::getTotalDuration()
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{
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uint16_t total = 0;
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for(uint8_t i = 0; i < _stepCount; i++)
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{
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total += _sequence[i].duration;
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}
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return total;
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}
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void SequencerBlock::_finishCurrentStep()
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{
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if(_stepCount == 0) return;
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unsigned long now = millis();
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_sequence[_stepCount - 1].duration = now - _lastStepTime;
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// Timeout prüfen - wenn zu lange keine Änderung, Schritt nicht hinzufügen
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if(_sequence[_stepCount - 1].duration < _timeoutMS)
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{
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_stepCount++;
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}
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}
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bool SequencerBlock::_canAddStep()
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{
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if(_stepCount >= N_MAX_SEQUENCE_STEPS) return false;
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if(timeLimitReached()) return false;
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return true;
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}
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@@ -1,5 +1,13 @@
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/*
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* Example Code Two
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* Example Code Three
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* with Sequencer
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*
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* Bedienung:
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* - Keyboard-Tasten: CV-Ausgabe direkt oder Recording
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* - PIN_SB_1_REC: Sequencer 1 Record Start/Stop
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* - PIN_SB_1_PLAY: Sequencer 1 Play/Stop
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* - PIN_SB_2_REC: Sequencer 2 Record Start/Stop
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* - PIN_SB_2_PLAY: Sequencer 2 Play/Stop
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*/
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#include "FIRMWARE_DEF.h"
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#include "FIRMWARE.h"
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@@ -11,7 +19,7 @@ Keyboard keyboard(N_KEYBOARD_ROW, N_KEYBOARD_COL, pins_keyboard_row, pins_keyboa
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Adafruit_MCP4728 MCP4728;
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MCP4728_channel_t cvMap[N_CV_GATES] = {MCP4728_CHANNEL_A, MCP4728_CHANNEL_B};
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uint16_t keyToVoltage[N_KEYBOARD_ROW*N_KEYBOARD_COL] = {
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uint16_t keyToVoltage[N_KEYBOARD_ROW*N_KEYBOARD_COL] = { /* 83mV = 1/12V */
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1*83, 5*83, 9*83,
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2*83, 6*83, 10*83,
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3*83, 7*83, 11*83,
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@@ -20,41 +28,251 @@ uint16_t keyToVoltage[N_KEYBOARD_ROW*N_KEYBOARD_COL] = {
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CV cv(&MCP4728, &Wire, N_CV_GATES, cvMap, keyToVoltage, N_KEYBOARD_ROW, N_KEYBOARD_COL);
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SequencerBlock sb1(30000, 250); // 30 Sekunden max, 250ms Timeout
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SequencerBlock sb2(30000, 250);
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// Button States
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struct ButtonState {
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bool current;
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bool last;
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unsigned long lastDebounceTime;
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};
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ButtonState btn_sb1_rec;
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ButtonState btn_sb1_play;
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ButtonState btn_sb2_rec;
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ButtonState btn_sb2_play;
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const unsigned long DEBOUNCE_DELAY = 50;
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// Hilfsfunktion zum Lesen eines Buttons mit Debouncing
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bool readButton(byte pin, ButtonState &state)
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{
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bool reading = digitalRead(pin) == LOW; // LOW = gedrückt (mit Pull-Up)
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bool buttonPressed = false;
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if(reading != state.last)
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{
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state.lastDebounceTime = millis();
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}
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if((millis() - state.lastDebounceTime) > DEBOUNCE_DELAY)
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{
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if(reading != state.current)
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{
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state.current = reading;
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if(state.current == true) // Button wurde gerade gedrückt
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{
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buttonPressed = true;
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}
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}
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}
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state.last = reading;
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return buttonPressed;
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}
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void initButtons()
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{
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pinMode(PIN_SB_1_REC, INPUT_PULLUP);
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pinMode(PIN_SB_1_PLAY, INPUT_PULLUP);
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pinMode(PIN_SB_2_REC, INPUT_PULLUP);
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pinMode(PIN_SB_2_PLAY, INPUT_PULLUP);
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btn_sb1_rec.current = false;
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btn_sb1_rec.last = false;
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btn_sb1_rec.lastDebounceTime = 0;
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btn_sb1_play.current = false;
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btn_sb1_play.last = false;
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btn_sb1_play.lastDebounceTime = 0;
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btn_sb2_rec.current = false;
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btn_sb2_rec.last = false;
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btn_sb2_rec.lastDebounceTime = 0;
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btn_sb2_play.current = false;
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btn_sb2_play.last = false;
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btn_sb2_play.lastDebounceTime = 0;
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}
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void handleSequencerButtons()
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{
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// Sequencer 1 Record Button
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if(readButton(PIN_SB_1_REC, btn_sb1_rec))
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{
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if(sb1.isRecording())
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{
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sb1.stopRecord();
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Serial.printf("\n\r[SEQ1] Recording stopped. Steps: %i, Duration: %ims",
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sb1.getStepCount(), sb1.getTotalDuration());
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}
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else
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{
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if(sb1.isPlaying()) sb1.stopPlay();
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sb1.startRecord();
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Serial.printf("\n\r[SEQ1] Recording started...");
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}
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}
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// Sequencer 1 Play Button
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if(readButton(PIN_SB_1_PLAY, btn_sb1_play))
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{
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if(sb1.isPlaying())
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{
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sb1.stopPlay();
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Serial.printf("\n\r[SEQ1] Playback stopped");
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}
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else
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{
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if(sb1.isRecording()) sb1.stopRecord();
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sb1.startPlay();
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Serial.printf("\n\r[SEQ1] Playback started");
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}
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}
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// Sequencer 2 Record Button
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if(readButton(PIN_SB_2_REC, btn_sb2_rec))
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{
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if(sb2.isRecording())
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{
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sb2.stopRecord();
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Serial.printf("\n\r[SEQ2] Recording stopped. Steps: %i, Duration: %ims",
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sb2.getStepCount(), sb2.getTotalDuration());
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}
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else
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{
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if(sb2.isPlaying()) sb2.stopPlay();
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sb2.startRecord();
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Serial.printf("\n\r[SEQ2] Recording started...");
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}
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}
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// Sequencer 2 Play Button
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if(readButton(PIN_SB_2_PLAY, btn_sb2_play))
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{
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if(sb2.isPlaying())
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{
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sb2.stopPlay();
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Serial.printf("\n\r[SEQ2] Playback stopped");
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}
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else
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{
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if(sb2.isRecording()) sb2.stopRecord();
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sb2.startPlay();
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Serial.printf("\n\r[SEQ2] Playback started");
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}
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}
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}
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void setup()
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{
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Serial.begin(BAUDRATE);
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keyboard.begin();
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cv.begin(PIN_SDA, PIN_SCL);
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Serial.begin(BAUDRATE);
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keyboard.begin();
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cv.begin(PIN_SDA, PIN_SCL);
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initButtons();
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sb1.setLoop(false);
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sb2.setLoop(false);
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Serial.printf("\n\r=== Sequencer System Started ===");
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Serial.printf("\n\rControls:");
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Serial.printf("\n\r PIN_SB_1_REC: SEQ1 Record Start/Stop");
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Serial.printf("\n\r PIN_SB_1_PLAY: SEQ1 Play/Stop");
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Serial.printf("\n\r PIN_SB_2_REC: SEQ2 Record Start/Stop");
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Serial.printf("\n\r PIN_SB_2_PLAY: SEQ2 Play/Stop");
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Serial.printf("\n\r================================\n\r");
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}
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void loop()
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{
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keyboard.update();
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int n = keyboard.getQueueLength();
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if(n > 0)
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{
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Serial.printf("\n\rCurrent queue length: %i", n);
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if(n == 1)
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keyboard.update();
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handleSequencerButtons();
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// Sequencer Update (für Wiedergabe)
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sb1.update();
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sb2.update();
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int n = keyboard.getQueueLength();
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// Keyboard-Tasten verarbeiten
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if(n > 0)
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{
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cv.setVoltage(0, keyboard.getQueue(0));
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cv.setVoltage(1, NOT_A_KEY);
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// Alle Keyboard-Tasten für CV-Ausgabe verwenden
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int cvIndex = 0;
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for(int i = 0; i < n && cvIndex < N_CV_GATES; i++)
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{
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Key k = keyboard.getQueue(i);
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if(!isNotKey(k))
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{
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uint16_t voltage = keyToVoltage[k.row * N_KEYBOARD_COL + k.col];
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// Bei Recording: Spannung aufnehmen
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if(sb1.isRecording())
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{
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sb1.addStep(voltage);
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}
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if(sb2.isRecording())
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{
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sb2.addStep(voltage);
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}
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// Live-Ausgabe nur wenn nicht gerade wiedergegeben wird
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if(!sb1.isPlaying() && !sb2.isPlaying())
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{
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cv.setVoltage(cvIndex++, k);
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}
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||||
}
|
||||
}
|
||||
|
||||
// Restliche CV-Ausgänge auf 0 setzen wenn live gespielt wird
|
||||
if(!sb1.isPlaying() && !sb2.isPlaying())
|
||||
{
|
||||
for(int i = cvIndex; i < N_CV_GATES; i++)
|
||||
{
|
||||
cv.setVoltage(i, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if(n >= 2)
|
||||
else
|
||||
{
|
||||
cv.setVoltage(0, keyboard.getQueue(0));
|
||||
cv.setVoltage(1, keyboard.getQueue(1));
|
||||
// Keine Tasten gedrückt
|
||||
if(sb1.isRecording())
|
||||
{
|
||||
sb1.addStep(0);
|
||||
}
|
||||
if(sb2.isRecording())
|
||||
{
|
||||
sb2.addStep(0);
|
||||
}
|
||||
|
||||
if(!sb1.isPlaying() && !sb2.isPlaying())
|
||||
{
|
||||
cv.clearAll();
|
||||
}
|
||||
}
|
||||
|
||||
for(int i = 0; (i < N_CV_GATES) && (i < n); i++)
|
||||
|
||||
// Sequencer-Wiedergabe auf CV-Ausgänge
|
||||
if(sb1.isPlaying())
|
||||
{
|
||||
Key k = keyboard.getQueue(i);
|
||||
if(isNotKey(k)) Serial.printf("\n\rQueue position %i: NOT A KEY", i);
|
||||
else Serial.printf("\n\rQueue position %i: R%iC%i", i, k.row, k.col);
|
||||
cv.setVoltage(0, sb1.getCurrentVoltage());
|
||||
}
|
||||
}
|
||||
else cv.clearAll();
|
||||
|
||||
delay(50);
|
||||
if(sb2.isPlaying())
|
||||
{
|
||||
cv.setVoltage(1, sb2.getCurrentVoltage());
|
||||
}
|
||||
|
||||
// Time-Limit Warnung
|
||||
if(sb1.isRecording() && sb1.timeLimitReached())
|
||||
{
|
||||
sb1.stopRecord();
|
||||
Serial.printf("\n\r[SEQ1] Time limit reached! Recording stopped.");
|
||||
}
|
||||
if(sb2.isRecording() && sb2.timeLimitReached())
|
||||
{
|
||||
sb2.stopRecord();
|
||||
Serial.printf("\n\r[SEQ2] Time limit reached! Recording stopped.");
|
||||
}
|
||||
|
||||
delay(10); // Kürzeres Delay für bessere Sequencer-Auflösung
|
||||
}
|
||||
60
dev/digital/Firmware_TEST/src/main.cpp.2
Normal file
60
dev/digital/Firmware_TEST/src/main.cpp.2
Normal file
@@ -0,0 +1,60 @@
|
||||
/*
|
||||
* Example Code Two
|
||||
*/
|
||||
#include "FIRMWARE_DEF.h"
|
||||
#include "FIRMWARE.h"
|
||||
|
||||
static byte pins_keyboard_row[N_KEYBOARD_ROW] = {PIN_K_R0, PIN_K_R1, PIN_K_R2, PIN_K_R3};
|
||||
static byte pins_keyboard_col[N_KEYBOARD_COL] = {PIN_K_C0, PIN_K_C1, PIN_K_C2};
|
||||
|
||||
Keyboard keyboard(N_KEYBOARD_ROW, N_KEYBOARD_COL, pins_keyboard_row, pins_keyboard_col);
|
||||
|
||||
Adafruit_MCP4728 MCP4728;
|
||||
MCP4728_channel_t cvMap[N_CV_GATES] = {MCP4728_CHANNEL_A, MCP4728_CHANNEL_B};
|
||||
uint16_t keyToVoltage[N_KEYBOARD_ROW*N_KEYBOARD_COL] = {
|
||||
1*83, 5*83, 9*83,
|
||||
2*83, 6*83, 10*83,
|
||||
3*83, 7*83, 11*83,
|
||||
4*83, 8*83, 12*83
|
||||
};
|
||||
|
||||
CV cv(&MCP4728, &Wire, N_CV_GATES, cvMap, keyToVoltage, N_KEYBOARD_ROW, N_KEYBOARD_COL);
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(BAUDRATE);
|
||||
keyboard.begin();
|
||||
cv.begin(PIN_SDA, PIN_SCL);
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
keyboard.update();
|
||||
|
||||
int n = keyboard.getQueueLength();
|
||||
|
||||
if(n > 0)
|
||||
{
|
||||
Serial.printf("\n\rCurrent queue length: %i", n);
|
||||
if(n == 1)
|
||||
{
|
||||
cv.setVoltage(0, keyboard.getQueue(0));
|
||||
cv.setVoltage(1, NOT_A_KEY);
|
||||
}
|
||||
else if(n >= 2)
|
||||
{
|
||||
cv.setVoltage(0, keyboard.getQueue(0));
|
||||
cv.setVoltage(1, keyboard.getQueue(1));
|
||||
}
|
||||
|
||||
for(int i = 0; (i < N_CV_GATES) && (i < n); i++)
|
||||
{
|
||||
Key k = keyboard.getQueue(i);
|
||||
if(isNotKey(k)) Serial.printf("\n\rQueue position %i: NOT A KEY", i);
|
||||
else Serial.printf("\n\rQueue position %i: R%iC%i", i, k.row, k.col);
|
||||
}
|
||||
}
|
||||
else cv.clearAll();
|
||||
|
||||
delay(50);
|
||||
}
|
||||
Reference in New Issue
Block a user