Re: FPGA/CPLD different approach

From: Ed Spittles <ed.spittles_at_gmail.com>
Date: Tue, 27 Aug 2013 21:12:54 +0100
Message-ID: <CAMPG4Y_7+4ZNhoCdeiHyb=53o1NrbOx24gHcX6GwyRHjrGmAQw@mail.gmail.com>
For some purposes OHO's GOP board might be a better fit than the GODIL -
it's smaller, got fewer pins, but has a 512kByte SRAM on board..
http://www.trenz-electronic.de/products/fpga-boards/oho-elektronik.html
http://shop.trenz-electronic.de/catalog/default.php?cPath=1_48_137

(For simple designs there are CPLD variations, but as noted that's not big
enough for a 6502-like CPU, or for ROM or RAM.)

As noted elsewhere, these boards have 5V level converters, crystals, and
on-board EEPROM for configuration.

Cheers
Ed



On 27 August 2013 11:34, Ingo Korb <ml@akana.de> wrote:

> Bil Herd <bherd@mercury-cg.com> writes:
>
> > I have gone through some test fitting but haven't really checked out
> > GODIL, for instance can they program the VCC and Ground pins or do
> > they have to physically configure?
>
> They can be freely configured using jumpers, but as Didier noted the
> pinning of those headers is a bit weird. IIRC the DIL pin alternates
> between the left and right side of the header and the other pin
> alternates between 5V and GND for each row, so you can select GND and 5V
> for any DIL pin by setting the jumper either horizontally or
> vertically.
>
> > I suspect that to keep the cost
> > down that the PCB might be wider than the .6" DIP but didnít yet
> > research if thatís a show stopper.
>
> It's much wider and longer - the board is 33.5 mm x 74.3 mm, the DIL
> interface at the bottom appears to be centered. The overall height
> including the DIL pins is ~20 mm.
>
> -ik
>
>        Message was sent through the cbm-hackers mailing list
>


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Received on 2013-08-27 21:00:03

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