Lpc2000

Hello,

On Friday 20 January 2006 21:10, Ed Schlunder wrote:
> The real Wiggler has host control of the TRST. Even if the TAP
> controller can be reset by a TCK sequence, wouldn't the Macraigor
> OCDremote software likely implement support for reseting the TAP
> controller only through the TRST signal and omit support for doing a
> special TCK reset sequence? I wonder if this could explain why people
> say that they have trouble with OCDremote while the OpenOCD software
> works better. Does OpenOCD support the special TCK sequence for
> reseting the TAP controller?
>

OpenOCD allows you to specify what reset configuration your jtag interface and 
your target offers: none, trst only, srst only, srst and trst, and the 
possibility that trst might pull srst (just for completeness), that srst 
pulls trst (lpcs behave that way, i.e. a system reset resets the test logic, 
too) or that both reset lines are combined.
If a reset configuration is specified that lacks trst, OpenOCD automatically 
uses the tck sequence.

If there's anything you're missing feel free to contact me, and I'll try to 
get it fixed.

Regards,

Dominic