topic Re: FreeRTOS in KL02Z (SDK_2.0_FRDM-KL02Z) in Kinetis Software Development Kit

FreeRTOS in KL02Z (SDK_2.0_FRDM-KL02Z)

petterijarvela — Fri, 17 Jun 2016 10:07:35 GMT

Hi,

I am trying to get simple "Hello world" example to work in KL02Z with FreeRTOS. I am using FRDM-KL02Z board. And I am using SDK2.0. And I am using Kinetis Design Studio Version: 3.2.0.

No issues with build or debug. No issues in creating task or starting scheduler. "Hello world" task is just not entered at all.

Setup based on following, only used board and task changed:

Freedom development platform: Getting Started w... | element14 Community

What might be issue?

Re: FreeRTOS in KL02Z (SDK_2.0_FRDM-KL02Z)

BlackNight — Fri, 17 Jun 2016 12:02:57 GMT

Have you turned on the hooks like the one for 'out of heap'? I think you have not allocated enough heap.

Erich

Re: FreeRTOS in KL02Z (SDK_2.0_FRDM-KL02Z)

DavidS — Fri, 17 Jun 2016 20:57:05 GMT

Hi Petteri,

I only took a quick look at KSDK_v2 for KL02 and it does not have any example for FreeRTOS. Wondering if that reason is because the KL02 has such limited flash (8/16/32KB options) and SRAM (only 1/2/4 respectively) that having FreeRTOS doesn't work on that limited of memory??? I haven't tried yet. Maybe others can chime in on this too.

Your example link is using the K64 with loads of on-chip memory (1MB flash and 256KB SRAM).

Regards,

David

Re: FreeRTOS in KL02Z (SDK_2.0_FRDM-KL02Z)

MarekTrmac — Mon, 31 Oct 2016 09:10:12 GMT

Hi,

as I know, it is recommended to have at least 16K RAM to use FreeRTOS.

Regards

Marek