Load the example code provided by Arduino FreeRTOS in File->Examples- >FreeRTOS-> Blink_AnalogRead. Questions: 1. Using

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Load The Example Code Provided By Arduino Freertos In File Examples Freertos Blink Analogread Questions 1 Using 1 (49.7 KiB) Viewed 37 times

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Load The Example Code Provided By Arduino Freertos In File Examples Freertos Blink Analogread Questions 1 Using 3 (23.98 KiB) Viewed 37 times

Load the example code provided by Arduino FreeRTOS in File->Examples- >FreeRTOS-> Blink_AnalogRead. Questions: 1. Using a timer how long is the period? 2. If you change the delay time, what happens to the period of the blinking? Change the TaskBlink task as follows: . void TaskBlink (void *pvParameters) { (void) pvParameters; pinMode(LED_BUILTIN, OUTPUT); volatile int i = 0; for (;;) // A Task shall never return or exit. t digitalWrite(LED_BUILTIN, HIGH); for(i=0;i<30000;i++); digitalWrite(LED_BUILTIN, LOW); for(i=0;i<30000; i++); Questions: 1. Measure the period again. 2. What happens when you increase the loop to > 32,770? Set File - Preferences - Compiler warnings 'all' 3. This is modeling using CPU time what is the difference between this and vTaskDelay? Using the OS to multi-task You will have more than one task running and let the FreeRTOS scheduler manage the scheduling. Each task will run periodically, and each will use a certain amount of CPU time. Note tick" resolution is around 16ms) • Taski should run every about every 85ms and use about 30ms of CPU time (using CPU_work). • Task2 should run about every 30ms and use about 10ms of CPU time (again with
Blink_AnalogReads #include <Arduino_FreeRTOS.h> // define two tasks for Blink s AnalogRead void TaskBlinkt void *pvParameters); void TaskAnalogRead( void *pvParameters ): // the setup function runs once when you press reset or power the board void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); while (!Serial) :ll wait for serial port to connect. Needed for native USB, on LEONARDO, MICRO, YUN, and other 324 based boards. 1 // No set up two tasks to run independently, xTaskCreate TaskBlink "Blink // A name just for humans 129 // This stack size can be checked adjusted by reading the Stack Highwater NULL 2 // Priority, with 3 (configHAX_PRIORITIES - 1) being the highest, and being the lowest. NULL): . . + xTaskCreated TaskAnalogRead "AnalogRead 128 // Stack size NULL 1 // Priority + NULL) . . . // Now the task schedule, which takes over control of scheduling individual tasks, is automatically started. } void loop() // Empty. Things are done in Taaks.
void loop() // Empty. Things are done in Taska. i Tanke void Tas Blink(void *pvParameters) // This is a task. (void) pv parameters: // initialize digital LED_BUILTIN on pin 13 as an output. pinMode(LED_BUILTIN, OUTPUT): volatile in 1-0: for (2) I A Tak shall never return or exit. 1 digitalWrite(LED_BUILTIN, HIGH) // turn the LED on (HICH In the voltage level) VTaskDelay(1000 portTICK_PERIOD_MS): // wait for one second digitalWrite(LED_BUILTIN, LOW); // turn the LED oft by making the voltage LOW VratDelay(1000 / portTICK_PERIOD_MS): // wait for one second 1 > Void Tan AnalogRead(void parameters) // This 10 a tak. (void) p Parameters W zead the input on analog pin 01 int sensorValue AnalogRead(10): // print out the value you read: Serial.println(sensorValue) Vaskelay(1); // one tick delay 15m) in between reads for stability