ColdFire/68K Microcontrollers and ProcessorsのトピックRe: Porting FreeRTOS on Coldfire V1 MCF51QE128 :

Porting FreeRTOS on Coldfire V1 MCF51QE128 :

Djef522 — Fri, 25 Jan 2008 20:24:33 GMT

Hello,

I starting to evaluate the OS FreeRTOS on a Coldfire V1 MCF51QE128.

I have just get the last version on FreeRTOS on http://www.freertos.org/

That is stable V4.7.0

I have just start building the directry tree.

I have remove some PRAGMA and set some asm instruction in nop.

Now it compile well with Codewarrior V6.01.

My target is a DEMOQ128 with MCF51QE128.

Here is the source code. (joined)

The aim is to port the RTOS to evaluate it.

Is someone has already started to port it?

Thanks,

Jean-François

FreeRTOS_MCFV1.zip

Message Edited by t.dowe on 2009-10-21 02:09 AM

Re: Porting FreeRTOS on Coldfire V1 MCF51QE128 :

danielsilva_net — Mon, 03 Mar 2008 08:49:11 GMT

Actually i'm also interested in this, i'm just waiting to receive the DEMOQ128 board get started with this chip. I will help as much as i can, whats the status of the port till now ? Is it functional ?

Re: Porting FreeRTOS on Coldfire V1 MCF51QE128 :

Djef522 — Mon, 03 Mar 2008 15:51:55 GMT

Dear Danielsilva,

In fact I have start the port but I can only pass some time to work on it because of ther work, so your help is welcome.

I have :

1/ start to undestand the structur of the freertos

2/ strart to understand what the other guys have done on the existing port.

3/ start the port on V1

4/ Last time I work on this subject I was verifying that 2 tests tasks were well build in memory. (It was ok for the first, but it seems that the second was erasing some area of the fisrt.

Note that I have put a 16MHz crystal on the board for other reason, so you may add a function to change the cpu clock register for the internal clock system.

I hope this will help you.

You can post other questions on this forum with your software modification.

Here is the fresh update.(joined)

Best regards,

Djef

FreeRTOS_MCFV1_03_03_2008.zip

Message Edited by t.dowe on 2009-10-21 02:10 AM

Re: Porting FreeRTOS on Coldfire V1 MCF51QE128 :

Nouchi — Mon, 03 Mar 2008 23:51:37 GMT

Hello,

If you need some explanations about mcf5213 port, don't hesitate to ask me what you want to know.
I think, the 5213 port could work with CF v1 with minor changes, but it could be unefficient because I waste 1024 bytes of RAM for the ISR branch table.
But, it's the price to have an unified interrupt handler, and ALL ISR are written as simples C functions, just return pdTRUE if you want rescheduling after ISR.

Emmanuel

Message Edited by BugMan on 2008-03-03 04:52 PM

Re: Porting FreeRTOS on Coldfire V1 MCF51QE128 :

Sanahuja — Thu, 31 Jul 2008 22:32:01 GMT

Hello,

Do you hava any news about this project?
I'm trying to use your code but it doesn't work. It seems that the cpu always reset...

Thanks,
Guillaume.