On 02/27/2011 03:00 PM, Frank Tkalcevic wrote:

>> Hmmm, wonder if that board could be programmed to be a real time
>> ethernet slave?
>
> The board doesn't have any of the Ethernet hardware - RJ45 connector or PHY
> chip.  The MAC they speak of is built into the chip.
>
> Here's a better source of Ethernet+microcontroller breakout boards...
>
> http://www.propox.com/products/t_245.html?lang=en
>
> That one is basically the same with the Ethernet hardware.  They have other
> models with faster microcontrollers.
>
> I've been looking at this for a rt-net implementation.  I built a demo slave
> using an Atmel NGW100.  My software was sloppy and could only get about
> 200Hz update rate.  The real problem was doing any interfacing.  I want to
> basic PWM out, and encoder count in, plus homing and some IOs.  My plan is
> to use a microcontroller to do the Ethernet bits, then use an FPGA with a
> memory mapped interface to do the encoder reading and PWM generation.  Just
> need some time to learn FPGA design, then implement it.

You're right, I didn't notice that when I glanced at the board.

Mark

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