[time-nuts] FPGA protobards (was Re: Of rubidiumlifeandpiggy-bank anemia....)
Hal Murray
hmurray at megapathdsl.net
Sat Dec 1 20:47:07 UTC 2007
> Right; 'program' was a poor choice of words. My concern was more
> about how to get data off the board. I know it's customary to use a
> separate JTAG connection for programming, but if you can do both
> through the USB port, it seems like an obvious way to go.
Beware. At least some of the FPGA boards with a USB connector only use it
for programming and power. The USB signals usually go into a tiny micro. It
knows how to program the FPGA but there isn't any simple way to use it as a
data path.
I could easily have missed something wonderful on newer board. I do remember
being surprised when I figured that out the first time.
--
These are my opinions, not necessarily my employer's. I hate spam.
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