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From: alopez on 27 Apr 2010 09:06
Hello,

We have a product developed on an Intel Atom SBC and a NI DAQ that provides
2 AO, 8 DIO and 2 counters, for laser control on real time. The system runs
with a RTAI partched linux and Comedi drivers to achieve real time
performance on microseconds period (25 usec). A compact flash stores all
the software and data.

We would like to migrate to a CPU + FPGA environment on the same card, for
space and cost reduction, and future developments. I have a lot of
questions related to this migration, I would really appreciate any help on
this:

- Is it possible to get AO on the FPGA? It could be with Pulse Width
Modulation, if there is not possible to get a real AO

- Could you recommend a card with a CPU and FPGA, all together, to start
learning about this?

- Any other hints to start on FPGA and linux on the same card?

Thanks in advance
Antonio López



---------------------------------------
Posted through http://www.EmbeddedRelated.com
From: linnix on 27 Apr 2010 12:26
On Apr 27, 6:06 am, "alopez" <alopez(a)n_o_s_p_a_m.fotonicalaser.com>
wrote:
> Hello,
>
> We have a product developed on an Intel Atom SBC and a NI DAQ that provides
> 2 AO, 8 DIO and 2 counters, for laser control on real time. The system runs
> with a RTAI partched linux and Comedi drivers to achieve real time
> performance on microseconds period (25 usec). A compact flash stores all
> the software and data.
>
> We would like to migrate to a CPU + FPGA environment on the same card, for
> space and cost reduction, and future developments. I have a lot of
> questions related to this migration, I would really appreciate any help on
> this:
>
> - Is it possible to get AO on the FPGA? It could be with Pulse Width
> Modulation, if there is not possible to get a real AO

You can use resistor network to drive an op-amp adder/integrator.

>
> - Could you recommend a card with a CPU and FPGA, all together, to start
> learning about this?
>
> - Any other hints to start on FPGA and linux on the same card?

Use soft CPU IP on the FPGA.

>
> Thanks in advance
> Antonio López
>
> ---------------------------------------        
> Posted throughhttp://www.EmbeddedRelated.com

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