[J-core] Avnet LX9 microboard support & programming?

Rob Landley rob at landley.net
Tue Aug 30 23:39:30 EDT 2016

On 08/30/2016 07:49 PM, D. Jeff Dionne wrote:
> On Aug 31, 2016, at 04:34, Rich Felker <dalias at libc.org> wrote:
> ...
>>> and then running "impact -batch write_flash.cmd" in a directory with
>>> containing both write_flash.cmd and microboard9.mcs.
>> Ah, that sounds like a workable solution for most users. It's not so friendly to my setup where I have ISE installed on a completely different (and physically isolated) system from where the board and USB ports to program it are.
> You can install the Xilinx 'programming tools only', which does reduce the burden, somewhat.
>> One way to make this work without any specialized knowledge of the protocols used (but a lot more work than I want to do) would be to upload a special FPGA bitstream via djtgcfg whose only job is to write the flash.
> Indeed.  This is what impact actually does.

I wonder if we can get j1 down small enough that it could be used for
this sort of thing? (As the "minimal bitstream" to do maintenance things.)

Dunno the comparative scales of the two in this example...


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