ARM Technical Support Knowledge Articles

CANNOT DEBUG LPC2378 OR LPC2368 DEVICE

Applies to: ULINK USB-JTAG Debugger

Answer


Information in this article applies to:


QUESTION

I am using the Ethernet controller on the LPC23xx devices (A-Step version). After initalization of the Ethernet software I am getting the following error from ULINK:

ULINK - ARM Error:
Could not stop ARM device!
Please check the JTAG cable.

What can be wrong?

ANSWER

The A-Step devices require a slightly different Ethernet initialization (explained also in the NXP errata sheet). It is required that you change the initalization code as explained in the Knowledgebase Article MCB2300: ETHERNET INTERFACE FAILS ON A-STEP DEVICES

MORE INFORMATION

SEE ALSO

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Article last edited on: 2007-09-05 01:08:30

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