2.11BSD on two RL02 drives? Probably not, but...

emanuel stiebler emu at e-bbes.com
Fri Aug 4 14:25:19 CDT 2017


On 2017-08-04 15:15, David Bridgham via cctalk wrote:
> On 8/4/17 10:46, emanuel stiebler via cctalk wrote:

> Definitely I'll stick with 12Mb/s USB to start (for sure on our
> wire-wrapped prototype board) but I'd love to boost that to 480Mb/s
> later.  The analog issue is one thing that made me dubious about going
> to high-speed but also whether the FPGA without special serial hardware
> can go that fast.  If it can, fantastic.  I'll take all the pointers I
> can get.

http://ww1.microchip.com/downloads/en/DeviceDoc/00001678B.pdf
that the one I use a lot...

>> You use container files in fat16, or simply 1:1 block mapping?
>
> 1:1 block mapping.  I'm going to have enough fun with trying to
> implement the USB stack in the FPGA without doing FAT16 too.

Yikes ;-)

Please do yourself a favor, and put a small micr0controller in the FPGA.
Get it working, then you can optimize and write HDL for it.

What FPGAs are you using?

>> I agree some how with your approach, but it leads to debugging of
>> issues, you wouldn't have on real boards ...
>
> No doubt.  It's been a learning experience and we still have a long ways
> to go.

You will learn a lot on this way ...



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