JTAG Chain HPS and FPGA - Excluding HPS or FPGA via Jumpers - Cyclone V SoC

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Run Altera Quartus Programmer or Signaltap -- they shows all devices in chain and may work with any independently, with JTAG protocol BYPASS command disable all devices in path to current. Each unnecessary device before sought add 1 tact to any command protocol -- small cost.

With MICTOR example is unconvincing, please give situations, when cutting a device from chain allows to get big win or solve problems with its presence.

...Undoubtedly, jumpers play important role by right using.

And best variant -- not "hard" innumerable jumpers and switches, visible on board, then "soft", "virtual" -- through external host program, loadable predefined bit value sets "on/off" (from board customer as Rocketboards, for example) common situations to board nonvolatile memory and is used to program internal small invisible multiplexers. Very comfortable and decrease board sizes, especially if all LEDs will make also "virtual" and see only in PC-based program through JTAG ! :)

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Thanks WitFed, that was really helpful!

Cheers,

Adam