ULINK: JTAG COMMUNICATION ERROR ON ARM
Information in this article applies to:
I am using an STR71x device. When I display external memory in the µVision Debugger using the ULINK JTAG debugger I get the following error message:
JTAG Communication Failure
What can be the reason?
This error appears when the BUS cannot be addressed. The STR7 ARM devices from STMicroelectronic allow you to disable the BUS system using the RCCU registers. For example, the following statement disables the external BUS system:
RCCU_PER = 0;
Last Reviewed: Sunday, January 28, 2007
of your data.