Hi Everyone , I am using SDK v15.0 for nrf52840 with segger embedded studio.
I tried the example code given for blink freertos. I am able to run two tasks but as soon as i write third task to blink a 3rd onboard LED. It compiles but it doesn't do anything, No leds blink at all.
here is the code
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/** @file
* @defgroup blinky_example_main main.c
* @{
* @ingroup blinky_example_freertos
*
* @brief Blinky FreeRTOS Example Application main file.
*
* This file contains the source code for a sample application using FreeRTOS to blink LEDs.
*
*/
#include <stdbool.h>
#include <stdint.h>
#include "FreeRTOS.h"
#include "task.h"
#include "timers.h"
#include "bsp.h"
#include "nordic_common.h"
#include "nrf_drv_clock.h"
#include "sdk_errors.h"
#include "app_error.h"
#include "semphr.h"
#include "nrf_drv_twi.h"
#if LEDS_NUMBER <= 2
#error "Board is not equipped with enough amount of LEDs"
#endif
#define TASK_DELAY 700 /**< Task delay. Delays a LED0 task for 200 ms */
TaskHandle_t led_toggle_task1_handle; /**< Reference to LED0 toggling FreeRTOS task. */
TaskHandle_t led_toggle_task2_handle; /**< Reference to LED1 toggling FreeRTOS task. */
TaskHandle_t led_toggle_task3_handle;
TaskHandle_t led_toggle_task4_handle;
static void led_toggle_task1_function (void * pvParameter)
{
UNUSED_PARAMETER(pvParameter);
while (true)
{
bsp_board_led_invert(BSP_BOARD_LED_0);
/* Delay a task for a given number of ticks */
vTaskDelay(TASK_DELAY);
/* Tasks must be implemented to never return... */
}
}
/* @param[in] pvParameter Pointer that will be used as the parameter for the timer.
*/
static void led_toggle_task2_function (void * pvParameter)
{
UNUSED_PARAMETER(pvParameter);
while (true)
{
bsp_board_led_invert(BSP_BOARD_LED_1);
/* Delay a task for a given number of ticks */
vTaskDelay(TASK_DELAY);
/* Tasks must be implemented to never return... */
}
}
static void led_toggle_task3_function (void * pvParameter)
{
UNUSED_PARAMETER(pvParameter);
while (true)
{
bsp_board_led_invert(BSP_BOARD_LED_2);
/* Delay a task for a given number of ticks */
vTaskDelay(TASK_DELAY);
/* Tasks must be implemented to never return... */
}
}
static void led_toggle_task4_function (void * pvParameter)
{
UNUSED_PARAMETER(pvParameter);
while (true)
{
bsp_board_led_invert(BSP_BOARD_LED_3);
/* Delay a task for a given number of ticks */
vTaskDelay(TASK_DELAY);
/* Tasks must be implemented to never return... */
}
}
int main(void)
{
ret_code_t err_code;
/* Initialize clock driver for better time accuracy in FREERTOS */
err_code = nrf_drv_clock_init();
APP_ERROR_CHECK(err_code);
/* Configure LED-pins as outputs */
bsp_board_init(BSP_INIT_LEDS);
/* Create task for LED0 blinking with priority set to 2 */
UNUSED_VARIABLE(xTaskCreate(led_toggle_task1_function, "LED0", configMINIMAL_STACK_SIZE + 200, NULL, 2, &led_toggle_task1_handle));
UNUSED_VARIABLE(xTaskCreate(led_toggle_task2_function, "LED1", configMINIMAL_STACK_SIZE + 200, NULL, 2, &led_toggle_task2_handle));
UNUSED_VARIABLE(xTaskCreate(led_toggle_task3_function, "LED2", configMINIMAL_STACK_SIZE + 200, NULL, 2, &led_toggle_task3_handle));
// UNUSED_VARIABLE(xTaskCreate(led_toggle_task4_function, "LED3", configMINIMAL_STACK_SIZE + 200, NULL, 2, &led_toggle_task4_handle));
/* Activate deep sleep mode */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Start FreeRTOS scheduler. */
vTaskStartScheduler();
while (true)
{
/* FreeRTOS should not be here... FreeRTOS goes back to the start of stack
* in vTaskStartScheduler function. */
}
}
Is it a problem of stacksize configuration or something else?
Thanks
Rajat
