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Re: [Discuss-gnuradio] Interfacing Spartan-3AN FPGA starter kit with Bas
Re: [Discuss-gnuradio] Interfacing Spartan-3AN FPGA starter kit with BasicRX
Thu, 17 Jun 2010 20:05:22 +0400
Thanks a lot for taking the time to reply.
On Jun 17, 2010, at 7:27 PM, Catalin Patulea wrote:
> Can you clarify, by "FM Radio" do you mean broadcast FM (87.5-108 MHz)?
Yes, I thought I'd start with something simple, and implement a FM radio
> In terms of bandwidth, 3Msps sounds sufficient, but you'll have to
> implement an FPGA design which communicates with GNU Radio. Instead of
> starting from scratch, you can try to start from the USRP2 sources
> and apply modifications for your particular board.
The interesting thing is that the USRP2 is based on the Spartan-3 FPGA. On the
USRP2, they've used an LTC2284 Dual 14-Bit, 105Msps Low Power 3V ADC, whereas
the ADC used on the Spartan 3-AN starter kit is a LTC1407A-1 Serial 14-Bit,
3Msps Simultaneous Sampling ADC.
So, they replaced the ADC with a better one.
Where can I find the Xilinx ISE/EDK 10.1 project files that were used to build
the system for the MicroBlaze and associated IP cores?
What else would I need apart from the ADC's? Can I directly hook the ADC to the
BasicRX and complete the RF front-end? I'm guessing that the remaining parts
would more or less be compatible, since I have the ethernet port on the
Spartan-3AN starter kit. Its just the ADC that would be different.
Are there any other circuits that need to be put in between the ADC and the