Lpc2000

May I add some additional points about the wiggler-jtag isssue.

I wrote a tutorial titled "ARM Cross Development with Eclipse" that 
is referenced in the "links" section of this message board. This 
tutorial shows in excessive detail how to set up a free GNU compiler 
set for the ARM using the Eclipse/CDT IDE and how to use the Eclipse 
debugger with the wiggler. Hopefully, you have had a look at that.

The obvious shortcoming is that it couldn't debug in FLASH memory.

I'm now furiously working on a revision to this tutorial that does 
show how to debug in FLASH. Thanks to the genius of my new co-
author, Norwegian engineer Kjell Eirik Andersen, we now have a 
simple utility program, RSPBreakout.exe, that reads all commands 
intended for the Macraigor OCDRemote and converts all Z0,addr,length 
commands (software breakpoints) into Z1,addr,length commands 
(hardware breakpoints). As long as you limit yourself to setting no 
more than two breakpoints at a time, it will properly break in FLASH 
and all single-stepping, variable inspection, etc works 
magnificently. This requires Macraigor's OCDRemote version 2.14 
which supports -Z2 GDB remote serial protocol commands.

Not the ultimate solution, but a great breakthrough for a completely 
free development system nonetheless.

One last point, I can get the Olimex Wiggler to run at speed 3 (140 
khz) using the latest OCDRemote ver 2.14

However, I found that certain Windows applications, such as my 
beloved SKYPE internet phone system, used so much of my CPU 
resources that the speed that the Wiggler could run was severely 
degraded (to the lowest speed). I suggest that you bring up Windows 
Task Manager and make sure that you don't have any applications like 
that running. Remember that the OCDRemote/wiggler is ssentially "bit-
banging" the parallel port and this LPT1 port probably has a much 
lower priority on the Windows driver pecking order. 

I hope to have the tutorial finished in the next several days. I'm 
also hoping that the Eclipse foundation may accept my tutorial as an 
official Eclipse Corner article.

Cheers,
Jim Lynch