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[Discuss-gnuradio] USRP2 JTAG functionality [was Exposing more JTAG func
[Discuss-gnuradio] USRP2 JTAG functionality [was Exposing more JTAG functionallity in FX2firmware]
Mon, 31 Mar 2008 11:25:56 -0600 (CST)
> On Mon, Mar 31, 2008 at 11:46 AM, Uwe Bonnes
> <address@hidden> wrote:
>> has there been any effort to expose more JTAG functionality via the FX2 so
>> that the USRP FX2 firmware could be used with modified other JTAG software,
>> like xc3sprog.
> As far as I can tell, not without some hardware modification.
> According to the schematics found here:
> The JTAG section of the FPGA is pulled either high or low and has no
> other connections. You're obviously free to do what you want with
> your hardware, but I don't think you'll get much extra support from
> the mailing list?
> I could be wrong, so please have at it!
This reminds me of a question I have about USRP2. My understanding is the
USRP2 has a Xilinx Spartan 3, which I don't
think come in anything other than BGA packages. Hopefully Matt brought the
JTAG lines out in case people want to
deadbug a header and use standard tools. Even better would be the 0.1" holes
to install a header if desired.