FreeRTOS in Maixduino

[sipeed]

FreeRTOS in Maixduino

[chegewara]

https://github.com/kendryte/kendryte-freertos-sdk

[Neutree]

kendryte removed FreeRTOS from master branch, and you can use freertos branch: https://github.com/kendryte/kendryte-standalone-sdk/tree/freertos

[maxpromer]

kendryte removed FreeRTOS from master branch, and you can use freertos branch: https://github.com/kendryte/kendryte-standalone-sdk/tree/freertos

I clone branch this to /cores/arduino/kendryte-standalone-sdk and i upload this code to Sipeed Maix One Dock but not work. new task not do.

#include <FreeRTOS.h>
#include <task.h>

void vTaskCode( void * pvParameters ) {
  for ( ;; ) {
    Serial.println("Run in task !");
    vTaskDelay(500 / portTICK_PERIOD_MS);
  }
}

TaskHandle_t xHandle = NULL;

void setup() {
  Serial.begin(115200);

  Serial.println("Task create");
  xTaskCreate(
    vTaskCode,       /* Function that implements the task. */
    "vTaskCode",     /* Text name for the task. */
    1024,            /* Stack size in words, not bytes. */
    NULL,            /* Parameter passed into the task. */
    4,               /* Priority at which the task is created. */
    &xHandle );      /* Used to pass out the created task's handle. */
}

void loop() {
  Serial.println("Main loop");
  vTaskDelay(500 / portTICK_PERIOD_MS);
}

What i do wrong ?

[Neutree]

@maxpromer

Only one task was created, and scheduler not run yet in your code.

You should add some code to loop function:

vTaskStartScheduler();
while(1){}

the maixduino not run FreeRTOS scheduler by default, so you should run scheduler in your loop

You will understand all once you saw the source code as follow:

Maixduino/cores/arduino/main.cpp

Lines 24 to 28 in b10b99a

	do {
	loop();
	//if (serialEventRun)
	// serialEventRun();
	} while (1);

[maxpromer]

@maxpromer

Only one task was created, and scheduler not run yet in your code.

You should add some code to loop function:

vTaskStartScheduler();
while(1){}

the maixduino not run FreeRTOS scheduler by default, so you should run scheduler in your loop

You will understand all once you saw the source code as follow:

Maixduino/cores/arduino/main.cpp

Lines 24 to 28 in b10b99a

	do {
	loop();
	//if (serialEventRun)
	// serialEventRun();
	} while (1);

It work ! Thank so much. freertos branch i don't see example to use FreeRTOS so i have not a way to understand use FreeRTOS (I'm not professional about FreeRTOS. i'm user)

And this full code of work.

#include <FreeRTOS.h>
#include <task.h>

void vTaskCode( void * pvParameters ) {
  for ( ;; ) {
    Serial.println("Run in task !");
    vTaskDelay(500 / portTICK_PERIOD_MS);
  }
}

void vTaskCode2( void * pvParameters ) {
  for ( ;; ) {
    Serial.println("Run in task 2 !");
    vTaskDelay(500 / portTICK_PERIOD_MS);
  }
}


TaskHandle_t xHandle = NULL, xHandle2 = NULL;

void setup() {
  Serial.begin(115200);

  Serial.println("Task create");
  xTaskCreate(
    vTaskCode,       /* Function that implements the task. */
    "vTaskCode",     /* Text name for the task. */
    1024,            /* Stack size in words, not bytes. */
    NULL,            /* Parameter passed into the task. */
    4,               /* Priority at which the task is created. */
    &xHandle );      /* Used to pass out the created task's handle. */

  xTaskCreate(
    vTaskCode2,       /* Function that implements the task. */
    "vTaskCode2",     /* Text name for the task. */
    1024,            /* Stack size in words, not bytes. */
    NULL,            /* Parameter passed into the task. */
    4,               /* Priority at which the task is created. */
    &xHandle2 );      /* Used to pass out the created task's handle. */
}

void loop() {
  vTaskStartScheduler();
  while(1){}
}

[maxpromer]

I test code on Maixduino v0.3.10 the FreeRTOS work without clone freertos branch replace to /cores/arduino/kendryte-standalone-sdk so you can use FreeRTOS right now.