Re: Low cost board with built-in USB for fast data transfer and lots of gates

Jul 13, 2013 1 Replies


hi Guys,


>
> I would like to get started in the FPGA world.
> I intend to use the board to perform computations. Hence connectivity to
> and from the PC should be good and via usb.
>
> Am looking for a low cost fpga board with:
> 1. Inbuilt USB
> 2. Good to have - Ethernet port

When you say 'USB', are you intending to have a full USB stack on the board, so you can be an arbitrary USB endpoint (eg keyboard, mass storage, printer, camera)? Or will something like a USB-serial adaptor work - you talk to what you think is a UART, but it's converted by an additional chip to serial-over-USB.


The latter is much simpler, but imposes restrictions - you only show up as a serial port and you may be limited in speed (1 Mbps or so).


JTAG over USB is slightly different, but often has similar constraints.


Can I use low cost Papillon board for this purpose without soldering ( if
> there are any cables to facilitate data transfer )?

Papilio One appears to be USB over serial (FT232).


Do you have a particular preference of FPGA vendor?


Theo


I didn't see a cost requirement but I would take a look at a zedboard if yo u can swing the cost... This Zynq chip blows me away with the features vers us size and cost. The chip has both the features you mention, USB (OTG) an d Ethernet however they both run in the embedded ARM side of the chip. IMH O this is the right place for those two peripherals anyhow. The FPGA side of things is an artix-7 on the zedboard which is a very good sized amount o f logic to play around with too. I bought a zedboard for $400ish, but I re member seeing a $100 discount for students if that fits you.

One fun thing I did with mine is run a reference design with full Ubuntu Li nux running. I connected to my network then a keyboard and mouse to the US B and surfed the web on it... Totally blew me away.

I am guessing there is an analogous Altera soc too if you swing that way. I do not know of an analogous Altera board like the zedboard though.

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