Lpc2000

Leon Heller wrote:
> ----- Original Message -----
> From: "Bertrik Sikken" <bertrik@...>
> 
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Dominic Rath wrote:
>>> Hello,
>>>
>>> gdb-jtag-arm doesn't support ARM7 targets, only ARM9TDMI. The ARM9 code
>>> has
>>> bugs, and I wouldn't count on its operation.
>>
>> How hard would it be to make it work? Something like this:
>> * fix existing bugs (what bugs do you know of?)
>> * replace pp.c (linux parallel port io) with a windows equivalent
>> * add support for LPC specific registers
>> ?
>>
>>> Macraigor (the company that sells the original "Wiggler") allows you to
>>> download their on-chip debug software for free. I used it with an Amontec
>>> Chameleon in its Wiggler configuration, but only on windows, the wiggler
>>> isn't supported by their linux version.
>>
>> I got my wiggler clone today (an olimex arm-jtag cable, the "new model"
>> with pin 8 and 15 connected on the PC side) and here what I found out
>> so far:
>>
>> I tried both ocdcommander and ocdremote and as far as I understand now,
>> the big problem with these is that they cannot set breakpoints in flash.
>> Besides, these programs and some wiggler clones don't seem to be
>> completely compatible with each other (my cable only works at the lowest
>> speed setting, 4 kHz, unless I perform some tricks.)
> 
> My interface works at full speed, perhaps I have a better PCB design. I
> wasn't very impressed by the layout on the genuine Wiggler I have, and mine
> is faster than that.

The weird thing is, getting ocdremote to recognise the cable is the
hard part, once that works it seems to run fine.
The trick I mentioned is to first tell ocdcommander that a raven cable
is connected, let it fail, then tell it to look for a wiggler. If I do
that, the wiggler is recognised fine, even at the highest speed.

Regards,
Bertrik