S32 Design StudioのトピックRe: FreeRTOS scheduler not triggers the task on time

FreeRTOS scheduler not triggers the task on time

samcs — Sun, 22 May 2022 01:39:02 GMT

Ported old project on For Arm 2.0 platform to S32DS 3.4 Platform, but found the scheduler not triggers the task on time.

xTaskCreate( InitJobTask, "IK", 512 , NULL, mainQUEUE_SEND_TASK_PRIORITY + 8, &Rt_InitTaskxHandle); // Init Task
xTaskCreate( DrvTask, "TH", 512 , NULL, mainQUEUE_SEND_TASK_PRIORITY + 11, &Rt_DrvTaskxHandle );

vTaskStartScheduler();

static void InitJobTask( void *pvParameters )
{

for( ;; )
{
SystemInit();
vTaskSuspend(Rt_InitTaskxHandle);
}
}

uint32_t drvt1 = 0;
uint32_t drvt2 = 0;
uint32_t drvDelt[32] = {0};
static void DrvTask( void *pvParameters )
{
static TickType_t xLastWakeTimeMs;
int i = 0;

xLastWakeTimeMs = xTaskGetTickCount();

for( ;; )
{
drvt2 = GetTimeStampTimeMs();

DrvTask();

drvDelt[i] = drvt2 - drvt1;
drvt1 = drvt2;

i += 1;
if (i >= 32 )
{
i = 0;
}

vTaskDelayUntil( &xLastWakeTimeMs, 5);

}

Debug result:

but the old project on For Arm 2.0, works well.

Did anyone meet similar issue before? i don't know how to fix it now.

Re: FreeRTOS scheduler not triggers the task on time

samcs — Sun, 22 May 2022 20:30:34 GMT

I found in task.c , NXP SDK, /SDK/rtos/FreeRTOS/Source/tasks.c,
the macro defined in FreeRTOSConfig.h , seems not working,
for example,

While in FreeRTOSConfig.h:

Even i added the macro definition in task.c:

still the macro not works, why macro be defined, but it not works?

Re: FreeRTOS scheduler not triggers the task on time

jiri_kral — Mon, 23 May 2022 08:36:11 GMT

Hi,

I'm not sure if I get the point - you like to disable the RUN_TIME_STATS? Or you like to enable it? If you like to enable it - you need to set configGENERATE_RUN_TIME_STATS to 1 - like this:

#define configGENERATE_RUN_TIME_STATS 1

Jiri

Re: FreeRTOS scheduler not triggers the task on time

samcs — Mon, 23 May 2022 13:05:10 GMT

it should be disabled, in fact, in task.c, all macros not working,need to check makefile, i think,

it's weird, even i define a new Macro in the file,

#define Configure_AAAAAA 0

#if (Configure_AAAAAA != 0)

still, it not works

Re: FreeRTOS scheduler not triggers the task on time

jiri_kral — Mon, 23 May 2022 13:28:18 GMT

Hi,

just for clarification (i'm little bit lost) - what behavior are you expecting from your code snippet

#define Configure_AAAAAA 0

#if (Configure_AAAAAA != 0)

do_something();

#endif

Re: FreeRTOS scheduler not triggers the task on time

samcs — Tue, 24 May 2022 00:45:09 GMT

Found the issue