Lpc2000

--- In lpc2000@yahoogroups.com, "Aalt Lokhorst" <lokhorst@s...> wrote:
> Hello Chris,
> 
> Yesterday I build a JTAG Wiggler according to the schematic diagram 
from 
> Leon. (inclusive the strap between DB25_pin8 and DB25_pin15)
> I also had some problems to connect at speed-1 until I found some 
> information at:
> 
>    http://www.mikrocontroller.net/forum/read-2-135959.html
> 
> I found a 'workaround' to get a speed=1 connection. Strange enough 
you 
> need to do dummy connect to a RAVEN device first. This wil fail but 
it 
> leaves the interface in the correct state to connect properly for 
> WIGGLER. I am using now the next two commands and this works a lot 
> better (commands are for WIGGLER at LPT1)
> 
> ocdremote -cARM7TDMI-S -dRAVEN -a1 -s1   (results in Internal error 
43)
> 
> ocdremote -cARM7TDMI-S -dWIGGLER -a1 -s1 (connects correctly)
> 
> 
> > the wiggler seems quite unstable--lots of errors while trying to 
>  > connect.  It eventually works after a few tries at low speed (8)
>  > but doesn't give me much confidence.
> 
> -- 
> ==============================
> Aalt Lokhorst
> Schut Geometrische Meettechniek bv
> Duinkerkenstraat 21
> 9723 BN Groningen
> P.O. Box 5225
> 9700 GE Groningen
> The Netherlands
> Tel: +31-50-5877877
> Fax: +31-50-5877899
> E-mail: Lokhorst@S...
> ==============================

I have used the wiggler compatible interface for a while now and 
always connect at speed 1, with very few problems.
I agree flash debugging can be a problem with insight due to the 
hardware breakpoint implementation of gdb. This should change over 
the next few months as a lot of work is being done on this in gdb.
If you want to use the wiggler interface and need reliable/easy flash 
debugging use Rowley Crosstudio.

Regards
Spen