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Lpc2000

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Message

LPC2106 Secondary JTAG problems.

2006-05-31 by Richard

I am having problems to the 2106 using the secondary JTAG, this is on
a prototype board.  Keil gives me the message:

 "Couldn't stop the ARM device.  Check the JTAG cable"

The particulars:

Keil IDE
DBGSEL is pulled low.
RTCK is pulled low
TRST, TDI, TDO, and TMS are pulled high
TCK is pulled low
14.7456 MHz Xtal

I have used this setup in two ther designs without problems.  I
configure PINSEL2 to 0x55400000 as I always have.

I have slow the JTAG as slow as it will go.  I can see all the signals
active on the logic analyser.  

Ideas?

Thanks

Rich

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