John Griffiths

I have an ARTY Z7 20, I would like to use it to learn about JTAG boundary scanning. I'm using the open src application https://github.com/viveris/jtag-boundary-scanner. If I build & run the application with the Zynq 7020 BSDL file loaded, I can see two "probe" channels with the prog USB connected, but both of them report back "No Device Found" with the "JTAG Chain" "Get ID" and the Scan read reports "JTAG Chain Error". Is there a specific configuration for the ARTY Z7 20 to support JTAG Boundary scanning? Is there any documentation which may help my understanding of this? Thanks John.