🚀 go-pugleaf

wzab <wzab01@gmail.com> wrote:

>On Mar 9, 9:22=A0pm, n...@puntnl.niks (Nico Coesel) wrote:
>> wzab <wza...@gmail.com> wrote:
>>
>> >> What's the form factor? Does it have 0.1" headers so you could add
>> >> processor horsepower to a veroboard / stripboard? That would be great
>> >> for quick one-off tinker stuff.
>>
>> >Exactly. What I'm looking for is the Embedded Linux Computer with FPGA
>> >connected directly to the CPUs bus and to 0,1" headers, so that my
>> >students could deal with different peripherals (implemented in the
>> >FPGA)
>>
>> Don't count on connecting a CPU bus. Those days are long gone. The
>> speeds are too high. DDR and flash memory usually have dedicated
>> busses. Even if you could craft something that resembles a memory bus
>> there are many issues to work out. Especially if you would make the
>> bus go over headers. Nowadays you'd use GPIO, I2C, SPI or USB.
>>
>
>Why do you think so? E.g. in a board based on AT91SAM9G45
>( http://www.atmel.com/Images/doc6438.pdf ) you can easily connect
>DDR
>RAM to dedicated pins (DDR_A* DDR_D* etc.) and use separate EBI
>pins to connect FPGA.

That device is relatively slow. IIRC about the same device is used on
Conitec's Eva board.

-- 
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
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