Lpc2000

Hi Eric

You might like to consider the Crossconnect from Rowley as they are in
the throughs of providing a DLL for connecting to it and it is quite
cheap -- about 100 quid. We want to use them in our production testing.
Currently we are using Signum systems JTAGJet which is very nice but
pricey and we have also used Macraigor Ravens which are also quite
expensive and fairly slow. I did try the Jlink while the DLL was free
and had a few issues with it loosing control of the ARM and I wasn't all
that happy with its behaviour -- they may well have fixed up these
problems...

Cheers
Tim 

-----Original Message-----
From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf
Of Eric Engler
Sent: Tuesday, 11 October 2005 10:10 AM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: Debuging on Tini2131?

> The 20 pin JTAG connector is quite a waste of pins. There's only a few

> active signals on the connector. A 20 pin connector would dominate our

> boards, and in some cases, require us to double their size. So on all 
> our boards we have shrunk down to a 10 pin JTAG connector.

That's a good move. I have no problem with the board's small connector.
I just wanted to be able to plug in a USB device, so an adapter seemed
like a good idea.

> Since the parallel port on the PC is becoming legacy... We've been 
> working with MPE, to make a USB based "widget" for development. 
> http://www.mpeforth.com/jtagwidget.htm You'll notice it is much faster

> than the wiggler.

That's what I was looking for. I was thinking of a j-link but I don't
like the idea of paying a ton of money for their DLL SDK. I'm mostly a
PC programmer and I will want to interact with the USB on the PC side.
Is there an open API for this MPE USB device? I understand that you can
likely use it as a high-speed COM port but I want a way to get to RDI
debugging commands.

Eric

 



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