supleed2/ELEC60013-ES-CW2
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Added square wave

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This commit is contained in:
Kacper 2022-03-23 23:13:48 +00:00
parent d30170137b
commit a8f6e72473
1 changed files with 17 additions and 6 deletions
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23
src/main.cpp
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@ -9,11 +9,12 @@ volatile int32_t currentStepSize;
volatile uint8_t keyArray[7];
volatile int8_t volume;
volatile bool volumeFiner;
volatile int8_t wave;
int8_t volumeHistory = 0;
SemaphoreHandle_t keyArrayMutex;
Knob K1(0,6);
Knob K3(0,10);
enum wave{SQR=0,SAW,TRI,SIN};
enum waves{SQUARE=0,SAWTOOTH,TRIANGLE,SINE};
#pragma region Config Values
@ -128,7 +129,16 @@ uint16_t getTopKey(volatile uint8_t array[]) {
void sampleISR(){
static int32_t phaseAcc = 0;
phaseAcc += currentStepSize;
int32_t Vout = phaseAcc >> 16;
int32_t Vout = 0;
if(wave==SAWTOOTH){
Vout = phaseAcc >> 16;
}else if(wave==SQUARE){
if(phaseAcc<0){
Vout = 0x8000;
}else{
Vout = 0;
}
}
if(volumeFiner){
Vout = (Vout*12*volume) >> 16;
}else{ // 25 = floor( (1/10) << 8 )
@ -155,6 +165,7 @@ void scanKeysTask(void * pvParameters){
digitalToggle(LED_BUILTIN);
__atomic_store_n(&currentStepSize, stepSizes[getTopKey(keyArrayCopy)], __ATOMIC_RELAXED);
K1.updateRotation(keyArrayCopy[4] & 0x1, keyArrayCopy[4] & 0x2);
__atomic_store_n(&wave, K1.getRotation()/2, __ATOMIC_RELAXED);
if(volumeFiner){
K3.changeLimitsVolume(0,20);
}else{
@ -191,13 +202,13 @@ void displayUpdateTask(void * pvParameters){
// Print waveform icon
int K1_rot = K1.getRotation();
if(K1_rot<2){
u8g2.drawXBM(38,22,13,9,waveforms[SQR]);
u8g2.drawXBM(38,22,13,9,waveforms[SQUARE]);
}else if(K1_rot<4){
u8g2.drawXBM(38,22,13,9,waveforms[SAW]);
u8g2.drawXBM(38,22,13,9,waveforms[SAWTOOTH]);
}else if(K1_rot<6){
u8g2.drawXBM(38,22,13,9,waveforms[TRI]);
u8g2.drawXBM(38,22,13,9,waveforms[TRIANGLE]);
}else if(K1_rot==6){
u8g2.drawXBM(38,22,13,9,waveforms[SIN]);
u8g2.drawXBM(38,22,13,9,waveforms[SINE]);
};
// Print octave number