On Tuesday 21 October 2008 11:08:07 Listas de Correo wrote:
> actually, what I want to implement is a frame grabber, I think that is
> the name for it.
>
> Once a user or a sub-system requires the capture, the whole system
> will wait for a pulse synchronized with the frames.
>
> When I have this pulse, I start sampling for a given time at a given
> frequency (up to 150MHz) The idea is to use the FPGA or whatever as a
> simple bridge between the ADC and the RAM, then, when the one frame
> sample is finish, use a FT245 (parallel USB transceiver) to txmit the
> data over the USB port to the PC application...
>
> would that be as easy as it sounds?

An FPGA would probably be overkill for this. You may be able to get away with 
using a suitable micro or some other cheap programmable device. Your 
bottleneck is going to be the USB connection anyway.

-- 
with metta,
Shawn Tan

Aeste Works (M) Sdn Bhd - Engineering Elegance
http://www.aeste.net
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