supleed2/ELEC60013-ES-CW2
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P2S5 done

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Kacper 2022-03-23 15:24:26 +00:00
parent 65033439bd
commit 5b0661e77f
1 changed files with 14 additions and 10 deletions
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24
src/main.cpp
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@ -6,7 +6,7 @@
volatile int32_t currentStepSize; volatile int32_t currentStepSize;
volatile uint8_t keyArray[7]; volatile uint8_t keyArray[7];
volatile uint8_t *keyArrayPtr = keyArray; SemaphoreHandle_t keyArrayMutex;
#pragma region Config Values #pragma region Config Values
const uint32_t interval = 10; // Display update interval const uint32_t interval = 10; // Display update interval
@ -23,7 +23,6 @@ const int32_t stepSizes[] = {0,
107980982, 114401866, 121204555, 12841175, 136047513, 144137319, 152708170, 107980982, 114401866, 121204555, 12841175, 136047513, 144137319, 152708170,
161788670, 171409125, 181601642, 192400238}; // Step sizes for each note 161788670, 171409125, 181601642, 192400238}; // Step sizes for each note
#pragma endregion #pragma endregion
#pragma region Pin Definitions #pragma region Pin Definitions
// Row select and enable // Row select and enable
const int RA0_PIN = D3; const int RA0_PIN = D3;
@ -102,21 +101,23 @@ void sampleISR(){
} }
void scanKeysTask(void * pvParameters){ void scanKeysTask(void * pvParameters){
uint8_t keyArrayCopy[7];
const TickType_t xFrequency = 50/portTICK_PERIOD_MS; const TickType_t xFrequency = 50/portTICK_PERIOD_MS;
TickType_t xLastWakeTime = xTaskGetTickCount(); TickType_t xLastWakeTime = xTaskGetTickCount();
while(1){ while(1){
vTaskDelayUntil(&xLastWakeTime, xFrequency); vTaskDelayUntil(&xLastWakeTime, xFrequency);
for (uint8_t i = 0; i < 3; i++) { xSemaphoreTake(keyArrayMutex, portMAX_DELAY);
memcpy(keyArrayCopy, (void*)keyArray, 7);
xSemaphoreGive(keyArrayMutex);
for (uint8_t i = 0; i < 7; i++) {
setRow(i); setRow(i);
delayMicroseconds(3); delayMicroseconds(3);
keyArray[i] = readCols(); keyArrayCopy[i] = readCols();
} }
for (uint8_t i = 3; i < 7; i++) { xSemaphoreTake(keyArrayMutex, portMAX_DELAY);
setRow(i); memcpy((void*)keyArray, keyArrayCopy, 7);
delayMicroseconds(3); xSemaphoreGive(keyArrayMutex);
keyArray[i] = readCols(); __atomic_store_n(&currentStepSize, stepSizes[getTopKey(keyArrayCopy)], __ATOMIC_RELAXED);
}
__atomic_store_n(&currentStepSize, stepSizes[getTopKey(keyArray)], __ATOMIC_RELAXED);
} }
} }
@ -191,6 +192,9 @@ void setup() {
1, /* Task priority */ 1, /* Task priority */
&displayUpdateHandle /* Pointer to store the task handle */ &displayUpdateHandle /* Pointer to store the task handle */
); );
keyArrayMutex = xSemaphoreCreateMutex();
vTaskStartScheduler(); vTaskStartScheduler();
} }