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Lpc2000

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Message

Wiggler JTAG problem

2004-04-10 by Johan

Greetings,

Being a little green with LPC2106 debugging, I need some help.

I have the Olimex LPC2106 dev. board and it appears to function fine 
with the Philips ISP software, also the supplied test program in 
flash works fine.

Now am trying to get my (home made) Wiggler to work with it, but keep 
getting a message from OcdLibRemote to the effect that the "cable is 
not connected". The DBGSEL jumper is inserted (i.e., pin 27 pulled 
high) and the board seems to have NTRST pulled high as well (NC on 
the Wiggler interface).

When connecting this same JTAG debug hardware to my EB40A, it works 
just fine. So, I guess it must be something with the LPC2106 or 
perhaps circuit loading thats different?

Scoping the RST line, the EB40A comes nicely out of reset under 
control of OcdLibRemote, but all I see for the Olimex board is a 
brief blip on the RST line.

Any ideas would be appreciated.

Thanks much.

Johan.

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