supleed2/ELEC60013-ES-CW2
1
0
Fork 0
mirror of https://github.com/supleed2/ELEC60013-ES-CW2.git synced 2024-09-19 21:26:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

P2S5 done

Browse source
This commit is contained in:
Kacper 2022-03-23 15:24:26 +00:00
parent 65033439bd
commit 5b0661e77f
1 changed files with 14 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/main.cpp
View file

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