[Efi332] BDM troubles

[Doug Brunner]

Hmmm...I have a laptop that I use for tuning, set up as dual-boot. Maybe 
run OCDRemote on it?

       --Doug Brunner

bowtievette at aol.com wrote:

> The BDM interface built into the Phytec development board is 
> functionally identical to the wiggler interface, if not completely 
> identical. You should be able to connect using either interface so 
> thats probably not your problem.
>  
> One thing I found when investigating using gdb was that out of the 
> box, it did not support a parallel interface to the BDM. It only 
> supported the ethernet interface, so the only way I was able to get it 
> to work was with Macraigor's OCDemon program which essentially echoes 
> the ethernet port activity on the parallel port. Your gdb version may 
> have parallel BDM support but thats something to verify.
>  
> As a stopgap, you might try using Macraigor's OCD Commander as they 
> have a linux version for it. Thats probably not a final solution for 
> you though since it only allows assembly level debugging. But it would 
> get you connected so that you can load software at least. David Eicher 
> is using commander I think and can probably help out with 
> initialization scripts and such.
>  
> -----Original Message-----
> From: Paul Helmuth <PaulHelmuth at SprintMail.com>
> To: efi332 at diy-efi.org
> Sent: Sat, 2 Jul 2005 11:11:50 -0500
> Subject: Re: [Efi332] BDM troubles
>
> I suspect (mind you, I don't have much to go on here) that your 
> problem is related to trying to use Phytec's "built-in" interface with 
> anything other than the Codewarrior software that they ship with it. 
>  
> Of course, it should be possible to use that connection, but I think 
> things are a whole LOT "cleaner" switching to their external BDM 
> header. At least there you have all of the pins documented. 
>  
> I use a Macraigor Wiggler to supply the BDM-to-parallel port interface 
> and as I mentioned in my previous email, there is a link on James' web 
> page that gives some direction for matching the Macraigor outputs with 
> the Phytec external BDM header. 
>  
> The Macraigor unit has been 100% reliable for me. It's not the fastest 
> interface, (they also have faster ones - just more $$$) but it's 
> pretty inexpensive. 
>  
> ----- Original Message ----- From: ! "Doug Brunner" <doug at udel.edu 
> <mailto:doug%40udel.edu>> 
> To: <efi332 at diy-efi.org <mailto:efi332%40diy-efi.org>> 
> Sent: Saturday, July 02, 2005 10:51 AM 
> Subject: Re: [Efi332] BDM troubles 
>  
> > My problems have been with GDB's support for the BDM interface. I'm 
> > actually using the Phytec board's internal BDM (parallel port on the 
> > board) rather than the 10-pin header for an external BDM, since my 
> only > BDM is a Tilbury unit from way back when that has been more 
> than a little > flaky. 
> > 
> > As I understand it, GDB needs some kind of addon to talk to a BDM 
> via the > parallel port. I've tried MPCBDM as discussed on James' 555 
> Webpage, > running gdb 5.0 (since that's the only version I've seen 
> the patch for) as > root, and it doesn't seem to accomplish 
> anything--it just hangs when I try > to connect to the board. What has 
> everyone else been using? 
> > 
> > --Doug Brunner 
> > 
> > Paul Helmuth wrote: 
> > 
> >> I'm (reasonably) sure everyone that has done anything with the 
> Phytec >> development board has used the JTAG/BDM port. 
> >> 
> >> Since you are using GDB, I assume that you are using the GCC tool 
> chain. >> Since you are using that, I also assume that you are using 
> the external >> BDM port. This means you have some BDM port interface 
> (like a Wiggler). 
> >> 
> >> So - you need to make sure that all of your pin-outs match between 
> your >> BDM interface and the Phytec BDM port. As an example, two of 
> the pins are >> reversed between the Phytec port and my Macraigor 
> Wiggler. I have a note >> on James' 555 web page about that switch. 
> Also, you need to follow >> Phytec's bulletin on setting the 
> development board jumpers for using the >> external BDM port. 
> >>&nbs! p;
> >> Other than that, everything should work - but I haven't used these 
> tools >> with Linux. 
> >> 
> >> -Paul 
> >> 
> >> 
> >> ----- Original Message ----- From: "Doug Brunner" <doug at udel.edu 
> <mailto:doug%40udel.edu>> 
> >> To: <efi332 at diy-efi.org <mailto:efi332%40diy-efi.org>> 
> >> Sent: Friday, July 01, 2005 10:11 PM 
> >> Subject: [Efi332] BDM troubles 
> >> 
> >> 
> >>> I'm trying to start talking to my Phytec 555 board and having lots 
> of >>> trouble. It's on the Phytec development board, so I'm using 
> their BDM, >>> which I can't get GDB to interact with. I'm running all 
> this under >>> Linux. 
> >>> 
> >>> What have the rest of you been using for BDM support? 
> >>> 
> >>> --Doug Brunner 
> >! >> _______________________________________________ 
> >>> Efi332 mailing list 
> >>>
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