Antti Lukats wrote:
>
> "Alex Gibson" <[email protected]> wrote in message news:<bjv3de$qh2$[email protected]>...
> > "Tom Hawkins" <[email protected]> wrote in message
> > news:[email protected] om...
> > > I need a single chip solution for a control system and DSP
> > > application.
> > > The primary consideration is board area. The second, cost.
> > > Here's what I'm looking for:
> > > - 5V supply and I/O.
> > > - Embedded ADC (at least 1, preferably 8). Slow rate (50 Hz).
> > > - Small FPGA fabric. About the size of a small spartan.
> > > - Embedded block ram (4 KBytes).
> > > - Flash FPGA. Would like not to have separate config prom.
> > > - Low I/O count. I only need about 30 pins.
> [***]
> > looked at the atmel fpslic devices?
> > big cost is the license after the one in the dev kit runs out(4 months).
> >
> > basically an avr + small fpga
> >
> > http://www.atmel.com/products/FPSLIC/
> > http://www.atmel.com/dyn/products/devices.asp?family id=627
> > http://www.atmel.com/dyn/products/tools.asp?family id=627
> > http://www.atmel.com/dyn/products/tools card.asp?tool id=2752
>
> FPSLIC seemed like a dream when I first tried to use it, but
> the tools are really bad (maybe they are a little better now)
> Atmel claims the pricing starts from 7$ but only the 94K40 devices
> are available (from digikey 45$) smaller devices digikey pricing
> is $14 but non stock, and no idea where to get in small quantity
>
> and the software licensing is really a killer, I spend 2 weeks
> troubleshooting the license (involved phone calls to us support)
> and then it times out all the time. So I dropped FPSLIC at least
> temporarly from my desk.
>
> A Spartan that can hold AVR core and same amount of logic as AT94K40
> costs less than AT94K40, so why bother with FPSLIC?
Actually, neither Xilinx nor Atmel make a device that will fit all the
requirements since neither provide any mixed signal capability. The
Xilinx parts also do not support 5 volt tolerance unless you use a
Coolrunner CPLD.
The Cypress PSOC is the only device which provides all the required
functions, but I don't know if it is 5 volt tolerant or not.
--
Rick "rickman" Collins
[email protected]
Ignore the reply address. To email me use the above address with the XY
removed.
Arius - A Signal Processing Solutions Company
Specializing in DSP and
FPGA design URL
http://www.arius.com
4 King Ave 301-682-7772 Voice
Frederick, MD 21701-3110 301-682-7666 FAX