On Tue, Jul 12, 2011 at 4:53 PM, Walter F.J. Mueller <[email protected]> wrote: > On 07/12/2011 06:04 PM, Jie Zhang wrote: >> >> On Tue, Jul 12, 2011 at 3:24 AM, Martin Strubel <[email protected]> >> wrote: >> > Last time I tried, urJTAG was not usable with inhomogenous multi device >> > chains, so I'm afraid it is not supporting your configuration, unless >> > you find a way to make the SVF generator not use the header commands >> > (HDR/HIR). Or add support yourself. >> >> UrJTAG is designed to work with heterogeneous multi-device chains. >> It's only an implementation limit in SVF part of UrJTAG. > > Dear Jie, > > finally I localized the root of the problem and the solution: > > I have a Digilent Nexsy2 Board and wanted to program the FPGA over > the Cypress FX2 USB controller on this board. So I used the > > nexys2prog > > script given by the name-like SourceForge project. This produced > the Warnings and Errors I described. > > The UrJtag' documentation states in > http://urjtag.org/book/_jtag_commands.html#_highlevel_commands > clearly > "The SVF player operates on a single part in the scan chain" > > So the svf file must be created for a JTAG chain which only contains > the part to be programmed. > > nexys2prog calls Xilinx impact to create a svf file, and gives the full > JTAG chain of the board: TDI -> FPGA(xc3s1200e) -> PROM(xcf04s) -> TDO . > > I've changed the nexys2prog procedure such that svf file for a FPGA-only > chain is created, and all is fine. > 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 ------------------------------------------------------------------------------ AppSumo Presents a FREE Video for the SourceForge Community by Eric Ries, the creator of the Lean Startup Methodology on "Lean Startup Secrets Revealed." This video shows you how to validate your ideas, optimize your ideas and identify your business strategy. http://p.sf.net/sfu/appsumosfdev2dev _______________________________________________ UrJTAG-development mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/urjtag-development
