Lpc2000

Sorry, John, the FAE i discussed with did not know about the problem. 
But I demonstrated it to him, and also gave him a more detailed 
description of my tests. He promised to carry it over to the right 
persons at Philips ASAP, as he understood our frustration. So we 
just have to cross our fingers...

To me, it seems like some internal register(s) tends to start up in 
wrong state, preventing access. Because in some cases, I have been 
able to access JTAG2 directly, both on my own board and especially on 
one of my kick-start boards. Maybe the power-on sequence etc may 
affect this? Removing the connection of RTCK seemed to help in one 
case (Re msg 1067), but I got no effect of it. Any more experiences, 
Jim? 

Jon

--- In lpc2000@yahoogroups.com, "johnnorgaard2003" 
<john.norgaard@o...> wrote:
> --- In lpc2000@yahoogroups.com, "jvedum" <j.vedum@o...> wrote:
> > Use of the secondary JTAG has been discussed here before, see ie 
> msg 
> > 1067, 1262 and 1338. I have made a design where only JTAG2 is 
> > available, just as you suggest, and have not been able to debug 
the 
> > design using the JTAG interface. It works OK on other boards if I 
> > first brefly accesses JTAG1. (The JTAG2 is of course initialised 
> > according to Philips app note AN10255.)
> > 
> > Tomorrow I am going to meet a representatevi from Philips, and 
will 
> > of course discuss this issue with him.
> > 
> > Jon
> > 
> 
> Hi Jon
> 
> How did your meeting with Philips went ?
> Any solutions to JTAG problems ?
> 
> Best regards
> 
> John