Unable to get timers to compile on ESP32 nano

Projects Programming
8

You can also program the timers using the native IDF APIs:

#include "Arduino.h"
#include "driver/gptimer.h"

void BlinkingTask(void *params);
bool timerCallback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data);

void setup() {
	Serial.begin(115200);
	delay(2000);
	Serial.println("Starting");
	xTaskCreatePinnedToCore(BlinkingTask, "Blinking", 1000, NULL, 5, NULL, ARDUINO_RUNNING_CORE);
}

void loop() {
	vTaskDelete(NULL);
}

void BlinkingTask(void *params) {
	TaskHandle_t myTaskHandle { xTaskGetCurrentTaskHandle() };
	pinMode(4, OUTPUT);
	digitalWrite(4, LOW);

	gptimer_handle_t gptimer = NULL;
	const gptimer_config_t timer_config = {
			.clk_src = GPTIMER_CLK_SRC_DEFAULT,
			.direction = GPTIMER_COUNT_UP,
			.resolution_hz = 1000000, // 1MHz, 1 tick=1us
			};
	assert((gptimer_new_timer(&timer_config, &gptimer)==ESP_OK) && "Failed to Create Timer");

	gptimer_event_callbacks_t cbs = {
			.on_alarm = timerCallback,
	};
	assert((gptimer_register_event_callbacks(gptimer, &cbs, static_cast<void*>(myTaskHandle))==ESP_OK) && "Failed to Register Callback");
	assert((gptimer_enable(gptimer)==ESP_OK) && "Failed to Enable Timer");

	gptimer_alarm_config_t alarm_config ={1000000, 0, true};
	assert((gptimer_set_alarm_action(gptimer, &alarm_config)==ESP_OK) && "Failed to Set Alarm Action");

	assert((gptimer_start(gptimer)==ESP_OK) && "Failed to Start Timer");

	for (;;) {
		ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
		digitalWrite(4, HIGH);
		vTaskDelay(5);
		digitalWrite(4, LOW);
	}
}

bool IRAM_ATTR timerCallback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data) {
	TaskHandle_t handle { static_cast<TaskHandle_t>(user_data) };
	BaseType_t pxHigherPriorityTaskWoken { pdFALSE };
	vTaskNotifyGiveFromISR(handle, &pxHigherPriorityTaskWoken);
	return pxHigherPriorityTaskWoken == pdTRUE;
}