Axiom mcf5235BCC freezing

[Alan Cudmore]

I use this BDM software:
http://bdm.sourceforge.net/

It works with the P&E parallel port pod, or the Axiom BDM-CF pod.
http://www.axman.com/?q=node/303

Also, RTEMS has support for the flash device on the board, so you can  
format it as a disk if you like.
I replaced the DBUG monitor with a custom RTEMS kernel with a shell,  
then I format the remainder of the flash as a disk volume. It is a  
nice little board with RTEMS.

Alan


On Jun 30, 2010, at 9:22 PM, Seeberger, Thad [USA] wrote:

> Ok thanks guys for the help, what I have found is if I download via  
> tftp executing a go the board will freeze. The Program Counter is  
> set to 0x40414 after downloading. If I download via tftp and do a rd  
> after and note Program Counter (PC), 0x40414 for ticker.exe, then  
> hardware reset and go 40414 then rtems runs. I'm not sure why this  
> is. I'm using rtems-4.9.4 which includes the change noted below.
>
> Is there away to download via the BDM port. I have a P&E USB-ML- 
> Coldfire and a freescale Codewarrior USB tap that came with the  
> board but I have no idea how to use with linux and with rtems  
> development.
>
> thanks
> Thad Seeberger
> NSWCDD
> 540 653 9279
> ________________________________________
> From: Alan Cudmore [Alan.P.Cudmore at nasa.gov]
> Sent: Wednesday, June 30, 2010 1:04 PM
> To: Seeberger, Thad [USA]
> Cc: rtems-users at rtems.org
> Subject: Re: Axiom mcf5235BCC freezing
>
> Thad,
> I use these boards extensively and have no problems with RTEMS  
> freezing. I often leave one running in my office for days, if not  
> weeks and it seems stable.
>
> I have used RTEMS 4.9.x, but I'm up to a fairly recent CVS version  
> right now with the 4.10 tools.
>
> Somewhere in the 4.9.x release there was a problem with the code in  
> start.S on that board. Compare the code in libbsp/m68k/mcf5235/start/ 
> start.S between your version and the latest CVS version.
> I'm pretty sure this was added:
>
>    move.l  #0x20000201, d0
>    move.l   d0,(0x40000008)        | set up 2nd RAMBAR to make 2nd  
> port avail to FEC
>
> Otherwise, I cannot think of anything else that freezes the board.  
> Do you have a second board to try?
>
> Also, I have not loaded via TFTP. I use BDM most of the time, then I  
> also have a modified flash build of RTEMS that I load in place of  
> the monitor that comes on the board.
>
> Alan
>
>
> On Jun 30, 2010, at 12:50 PM, Seeberger, Thad [USA] wrote:
>
> good day, I am new to RTEMS and learning, I built mcf5235 BSP with  
> tests. Downloading with tftp. The Hello World test freezes as well  
> as others. The ticker test gets to TA3 then freezes.
> Where should I go from here? I'm using rtems-4.9 tools on fedora 7  
> installed with yum. The rtems is rtems 4.9.2
>
> Any pointers appreciated.
>
> Thanks
> Thad Seeberger
> NSWCDD
> 540 653 9279
>
>
> Thad Seeberger
> NSWCDD
> 540 653 9279
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>