ULINK: CHAINING JTAG DEVICES
Information in this article applies to:
I have used ULINK on a evaluation board with no problems. Now I have got the real hardware where there is an FPGA(EP1K30) in the JTAG chain. It does not work. What is required to allow chained devices on the JTAG bus?
ULINK supports device chaining on the JTAG bus. But a JTAG device must have the following attributes to allow chaining:
If the automatic setup does not work, you may manually setup the attributes of the device. In this case only BYPASS register must be implemented for chaining.
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Last Reviewed: Monday, October 1, 2012
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