Spartan-6 LX9 MicroBoard

[dmage]

Hi. I've looking for a board for my demo project and it's involves AD7982 1 MSps ADC.

Your board Spartan-6 LX9 MicroBoard is looks fine to me as processing and communicating basis,

but i doubt in speed capabilities of the PMOD connectors for my case. 

Can i use them for connect my custom addon board and use AD7982 to archive full 1MSps rate over SPI ?

Sincerly,

Volodin Konstantin,

IT-spec, Educator/Engineer

PSTA, Penza, Russia

[JBethurem]

Hi Volodin,

We have a reference design using two AD7476A ADC's.  Look under Support Files and Downloads page for the LX9.

There are 12-bit, 1 MSPS ADC's.   

The ADC you listed is 18-bits, thus about 50% more throughput.  Considering the AD7476A works OK, I would believe

there is enough headroom for that.

Thanks,

Jayson

[JBethurem]

Also, some SPI interfaces goes has high at 70MHz.

[dmage]

Hi,  and thanks for answer.

Can i use an already build EDK design with an a SPI core and then write some code for Microblaze + code for communicating with the PC

to implement datalogger functionality ?

Sincerly, Konstantin Volodin.

[JBethurem]

If you could get away with using our PMOD board with the 7476A (again only 12-bit) then that
prebuilt design is available.

Alternatively, AVS6LX9MBHP012 has a GPIO port mapped to the Pmods.   Its not configured as a SPI
port, however you could bit bang out SPI bits.  However that would be very tedious.  

Building a processor with a spare SPI port is what you really want.  But that would require EDK.

Jayson

[dmage]

Thanks, and i hope we will continue this thread after i've got this board!