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FreeRTOS.ino: fix usage of vTaskDelay #7418

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Merged
merged 1 commit into from
Nov 2, 2022
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FreeRTOS.ino: fix usage of vTaskDelay #7418

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8 changes: 5 additions & 3 deletions libraries/ESP32/examples/FreeRTOS/FreeRTOS.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -67,9 +67,11 @@ void TaskBlink(void *pvParameters) // This is a task.
for (;;) // A Task shall never return or exit.
{
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
vTaskDelay(100); // one tick delay (15ms) in between reads for stability
// arduino-esp32 has FreeRTOS configured to have a tick-rate of 1000Hz and portTICK_PERIOD_MS
// refers to how many milliseconds the period between each ticks is, ie. 1ms.
vTaskDelay(1000 / portTICK_PERIOD_MS ); // vTaskDelay wants ticks, not milliseconds
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
vTaskDelay(100); // one tick delay (15ms) in between reads for stability
vTaskDelay(1000 / portTICK_PERIOD_MS); // 1 second delay
}
}

Expand All @@ -92,6 +94,6 @@ void TaskAnalogReadA3(void *pvParameters) // This is a task.
int sensorValueA3 = analogRead(A3);
// print out the value you read:
Serial.println(sensorValueA3);
vTaskDelay(10); // one tick delay (15ms) in between reads for stability
vTaskDelay(100 / portTICK_PERIOD_MS); // 100ms delay
}
}