On Thu, Jul 14, 2011 at 5:01 AM, Walter F.J. Mueller <[email protected]> wrote: > Jie Zhang wrote: > ... > ... snip, old text remove > ... >> I'm wondering if this is correct. There are two parts on the chain. >> You only want to program the FPGA. So you need to bypass the PROM. >> That are those unimplemented SVF commands for. By "all is fine", you >> mean the programmed FPGA works correctly or just the programming has >> no warnings? >> >> Regards, >> Jie >> > > Hello Jie, > > http://urjtag.org/book/_jtag_commands.html#_highlevel_commands says it > all, I should have read it more carefully before I raised the issue > on the list. Under Limitations and Deficiencies it says > > * HIR, HDR commands not supported. Their functionality should be > covered by the part concept of UrJTAG. > > So the rule is: > > 1. create an svf file for a FPGA-only chain, no matter what the > real chain on the board looks like > 2. use 'detect' and 'part' to select the FPGA > > Rule 1 was violated by the nexys2prog script which I took as a starting > point (the author is notified, I hope he updates this project). With a > corrected nexys2prog all works fine, no warnings anymore, no errors. > Ah, you are right! I overlooked something. Thanks for explanation.
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