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Something I misunderstand,
If I am using JTAG debugger (in Programmer),
I can move bits to JTAG and make CLOCKS and see TDO as I expect,
But when I see TDO=1 => I don't see my green led on board lighting? why is that am I missing something?
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It does not work because you have not read any of the documentation and understood how the JTAG component works.
The TDO from the SLD_Virtual_JTAG component is *NOT* the same as the external pin. There is multiplexing logic in the SLD_Virtual_JTAG component. You need to issue JTAG commands to select your component first. The vjtag.pdf document contains example Tcl code and SignalTap II logic analyzer traces. Add a SignalTap II instance to your design and you will see that TDO will not change until you issue the correct commands.
Cheers,
Dave
Honored Contributor
