Hello Pavel and others!
A friend and I just received our Red Pitaya boards, and are trying to set them up as SDRs. While I've been able to run the Red Pitaya apps, I'm having a hard time getting the Red Pitaya to work as an SDR. I know that either I'm doing something stupid, or I'm missing something.
Firstly, I cannot find the SD card image file for the SDR app. I've looked all over this page for the link to the image, no luck:
http://pavel-demin.github.io/red-pitaya ... -receiver/
I've also tried to follow the instructions to add the two files to a clean version of the current ecosystem (Ecosystem (0.92-65)), as described on the above page, under "Getting Started". Again, no luck. If I ssh into the Red Pitaya after booting it from that card, I can see the original /dev/xdevcfg file, plus a file named /dev/xdevcfg? (with a question mark at the end of the name). I'm assuming that's the main problem I am having, the old xdevcfg is not being overwritten, and the new version is named wrong, and therefore not found.
As an aside, I added the two lines to the Windows/Fat32 version of /etc/init.d/rcS, not the /etc/init.d/rcS in Linux after the RP boots.
I'm a ham (N4TLF, ex WB4JFI), and have been playing with various SDRs for several years now, from SoftRocks to SDR-IQ, homeuilt HiQSDR, and a Flex-6500. I want to do more with FPGAs, I've messed with Digilent Nexys2 and a "Charleston" SDR board. I'm most familiar with Windows, but have been using Linux off and on since it came out.
The RP looks like it has real potential, especially if one hooks a decent PGA or other preamp, and filtering in front of it. If I can get the RP SDR going, I'll probably buy a second one.
Thank you guys for any help you can provide!
Terry, N4TLF