I am using board version 1.0.0 and would like to use the xTaskCreate() function from FreeRTOS. I found this example from Arduino_FreeRTOS_Library/Blink_AnalogRead.ino at master · feilipu/Arduino_FreeRTOS_Library · GitHub
#include <Arduino_FreeRTOS.h>
// define two tasks for Blink & AnalogRead
void TaskBlink( 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) {
; // wait for serial port to connect. Needed for native USB, on LEONARDO, MICRO, YUN, and other 32u4 based boards.
}
// Now set up two tasks to run independently.
xTaskCreate(
TaskBlink
, "Blink" // A name just for humans
, 128 // This stack size can be checked & adjusted by reading the Stack Highwater
, NULL
, 2 // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
, NULL );
xTaskCreate(
TaskAnalogRead
, "AnalogRead"
, 128 // Stack size
, NULL
, 1 // Priority
, NULL );
// Now the task scheduler, which takes over control of scheduling individual tasks, is automatically started.
}
void loop()
{
// Empty. Things are done in Tasks.
}
/*--------------------------------------------------*/
/*---------------------- Tasks ---------------------*/
/*--------------------------------------------------*/
void TaskBlink(void *pvParameters) // This is a task.
{
(void) pvParameters;
// initialize digital LED_BUILTIN on pin 13 as an output.
pinMode(LED_BUILTIN, OUTPUT);
for (;;) // A Task shall never return or exit.
{
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
vTaskDelay( 1000 / portTICK_PERIOD_MS ); // wait for one second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
vTaskDelay( 1000 / portTICK_PERIOD_MS ); // wait for one second
}
}
void TaskAnalogRead(void *pvParameters) // This is a task.
{
(void) pvParameters;
/*
AnalogReadSerial
Reads an analog input on pin 0, prints the result to the serial monitor.
Graphical representation is available using serial plotter (Tools > Serial Plotter menu)
Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.
This example code is in the public domain.
*/
for (;;)
{
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
Serial.println(sensorValue);
vTaskDelay(1); // one tick delay (15ms) in between reads for stability
}
}
However I am getting these errors even when I remove the #include <Arduino_FreeRTOS.h>
C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173\Blink_AnalogRead.ino: In function 'void TaskBlink(void*)':
C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173\Blink_AnalogRead.ino:80:22: warning: division by zero [-Wdiv-by-zero]
80 | vTaskDelay( 1000 / portTICK_PERIOD_MS ); // wait for one second
C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173\Blink_AnalogRead.ino:82:22: warning: division by zero [-Wdiv-by-zero]
82 | vTaskDelay( 1000 / portTICK_PERIOD_MS ); // wait for one second
c:/users/***/appdata/local/arduino15/packages/seeeduino/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: sketch\Blink_AnalogRead.ino.cpp.o: in function `TaskAnalogRead(void*)':
C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173/Blink_AnalogRead.ino:99: undefined reference to `Serial'
c:/users/***/appdata/local/arduino15/packages/seeeduino/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: sketch\Blink_AnalogRead.ino.cpp.o: in function `setup':
C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173/Blink_AnalogRead.ino:11: undefined reference to `Adafruit_USBD_CDC::begin(unsigned long)'
c:/users/***/appdata/local/arduino15/packages/seeeduino/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173/Blink_AnalogRead.ino:13: undefined reference to `Adafruit_USBD_CDC::operator bool()'
c:/users/***/appdata/local/arduino15/packages/seeeduino/tools/arm-none-eabi-gcc/9-2019q4/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\***\AppData\Local\Temp\arduino_modified_sketch_28173/Blink_AnalogRead.ino:35: undefined reference to `Serial'
collect2.exe: error: ld returned 1 exit status
I thought I could use freeRTOS as I found the freeRTOS library in the package: C:\Users\ ***\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.0.0\cores\nRF5\freertos but it doesn’t seem to work.
Looking for some insight into this, thank you