Lpc2000

--
Leon Heller, G1HSM Tel: +44 1424 423947
Email: aqzf13 at dsl dot pipex dot com
WWW: http://www.geocities.com/leon_heller




>From: "theeuwke" <theeuwke@...>
>Reply-To: lpc2000@yahoogroups.com
>To: lpc2000@yahoogroups.com
>Subject: [lpc2000] Re: Wiggler
>Date: Wed, 27 Oct 2004 13:59:38 -0000
>
>
>
>--- In lpc2000@yahoogroups.com, "leon_heller" <leon_heller@h...>
>wrote:
> >
> > --- In lpc2000@yahoogroups.com, "Leon Heller" <leon_heller@h...>
> > wrote:
> >
> > Something else I just remembered: you might have the interface
>speed
> > set too fast, try slowing it down. The speed seems to depend on
>the
> > construction; mine works faster than a genuine Wiggler, probably
> > because I took more care with the PCB layout.
> >
> > Leon
>
>I tried al the speed settings, no luck.
>
>I Just putted a scope on it, Result when i connect with ocdremote:
>nRST: pull up
>TDO : pull down
>TCK : some data i think
>TMS : clock
>TDI : nothing
>
>TRST = HIGH
>DBGSEL: LOW! - > put 3.3 on it?

That looks like the cause of the problem, DBGSEL should be high to enable 
JTAG debugging. It has an internal pulldown resistor.

Leon