12-16-2011 02:03 AM
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 ?
PSTA, Penza, Russia
12-19-2011 08:16 AM
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.
12-19-2011 11:49 AM
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.
12-19-2011 12:00 PM
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.