Oh fun. I'll take a look. That hadn't occurred to me, but that would make the most sense.
On Thu, Dec 17, 2009 at 12:42 PM, David Brownell <davi...@pacbell.net>wrote: > On Thursday 17 December 2009, Charles Vaughn wrote: > > Error: 409 14198 core.c:905 jtag_examine_chain_check(): JTAG scan chain > > interrogation failed: all ones > > I vaguely recall that some of the early Stellaris boards > (like that one!) actually wired up TRST ... other chips > don't seem to expose that signal, so it's not wired out > of the JTAG adapters' CPLDs either. > > The "all ones" could indicate that the TAP is still being > held in reset ... perhaps via TRST. I suggest you check > your reset_config lines against board schematics, and > maybe the code for that specific adapter. > > There are a bunch of Stellaris eval boards, with minor > differences in JTAG wiring. I'm not sure which config > is right for that board. I use "interface/luminary.cfg" > on a different board and it's fine, so I'd expect once > you sort out this config issue you'll have no problems. > > - Dave > > p.s. I also add "reset_config srst_nogate" to my > board's default "reset_config srst_only", but I > don't recall that anything would care about that. >
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