Hello everybody!
When creating 3 tasks on ESP32:
- void vEmulateLoad(void *pvParameter)
- void vReceiveTask(void *pvParameter)
- void vTransmitTask(void *pvParameter)
The first one pinned to Core 0 stops working after creating two others pinned to Core 1.
The code is presented below:
static QueueHandle_t xControlQueue = NULL;
static TaskHandle_t xReceiveTask = NULL, xTransmitTask = NULL;
static TaskHandle_t xEmulateLoad = NULL;
typedef struct {
void *data;
uint32_t data_len;
} message;
void vEmulateLoad(void *pvParameters) {
message msg;
/*SIMPLE DATA GENERATION*/
srand(time(NULL));
uint32_t arr_size = (uint32_t)pow(2, PACKETS_UNIQUE_NUM);
uint8_t arr[arr_size];
for (uint8_t i = 0; i < arr_size; ++i) {
arr[i] = (uint8_t)rand();
}
msg.data = (void *)arr;
msg.data_len = sizeof(arr);
for (;;) {
if (xQueueSend(xControlQueue, &msg, pdMS_TO_TICKS(100)) != pdTRUE)
ESP_LOGE(TAG, "[FreeRTOS] xControlQueue: FULL");
else
ESP_LOGI(TAG, "[FreeRTOS] xControlQueue: Item added");
vTaskDelay(pdMS_TO_TICKS(1000));
}
vTaskDelete(NULL);
}
void app_main(void){
BaseType_t xReturned __attribute__((unused));
// Initialize radio
state = radio.beginFSK(FSK_FREQ, FSK_BITRATE, FSK_FREQDEV, FSK_RXBW,
FSK_TXPOWER, FSK_PREAMBLE);
assert(state == RADIOLIB_ERR_NONE && "[SX1276] Failed to begin()");
radio.setDio0Action(ISR_opDone, RISING);
ESP_LOGI(TAG, "[SX1276] Chip is set");
// Initialize xControlQueue
xControlQueue = xQueueCreate(QUEUE_SIZE, sizeof(message));
assert(xControlQueue && "[FreeRTOS] Failed to create xControlQueue");
ESP_LOGI(TAG, "[FreeRTOS] xControlQueue is set");
// Initialize task emulating the load
xReturned = xTaskCreatePinnedToCore(vEmulateLoad, "xEmulateLoad", 4096, NULL,
(tskIDLE_PRIORITY + 1), &xEmulateLoad, 0);
assert(xReturned == pdPASS && "[FreeRTOS] Failed to create xEmulateLoad");
ESP_LOGI(TAG, "[FreeRTOS] xEmulateLoad is set");
// Initialize RX Task
xReturned = xTaskCreatePinnedToCore(vReceiveTask, "xReceiveTask", 4096, NULL,
(tskIDLE_PRIORITY + 1), &xReceiveTask, 1);
assert(xReturned == pdPASS && "[FreeRTOS] Failed to create xReceiveTask");
ESP_LOGI(TAG, "[FreeRTOS] xReceiveTask is set");
// Initialize TX Task
xReturned =
xTaskCreatePinnedToCore(vTransmitTask, "xTransmitTask", 4096, NULL,
(tskIDLE_PRIORITY + 1), &xTransmitTask, 1);
assert(xReturned == pdPASS && "[FreeRTOS] Failed to create xTransmitTask");
ESP_LOGI(TAG, "[FreeRTOS] xTransmitTask is set");
printf("Core %d: xReceiveTask\n", xTaskGetCoreID(xReceiveTask));
printf("Core %d: xTransmitTask\n", xTaskGetCoreID(xTransmitTask));
printf("Core %d: xEmulateLoad\n", xTaskGetCoreID(xEmulateLoad));
}
As you can see, vEmulateLoad() simply puts an item in the xControlQueue.
I can’t show the code of vReceiveTask() and vTransmitTask() but I can say that they’re responsible for half-duplex radiocommunication and after creation, they both go in Blocked State.
- vReceiveTask() is in Blocked State until Notification from ISR;
- vTransmitTask() is in Blocked State until Notification from vReceiveTask().
The result is given below:
I suppose I somehow broke some memory access rules/logic but I am totally confused, and any clue would be a relief.
Any suggestions on the source of the problem?
