开云体育

Hi Fred,

I started to look at your firmware a bit, and your hint about the other oscillators is really helpful.? Tom sent me the attached documentation about his original protocol, and looking at quisk's implementation of the softrock interface was also helpful.? This is actually something that would be useful to my electronics students.? In the second quarter of that subject the goal is to learn how to do an electronics project, and the one I have been doing is a quadrature sampling detector HF SDR receiver like the softrock.? The firmware we were using was done on an arduino and drove the Si5351.? It would be really handy for them to have firmware that would interface between the Si5351 and the softrock protocol because then they could use other PC software than quisk if they wished.? At present our interface is with quisk, because it was easy to do.? Last year we moved to using a Raspberry pi pico in some of the designs.? Getting the firmware to work was the most difficult part of their projects when they used the pico, but the emphasis of the class is on the hardware, not software, so I need to address that.? The pico firmware is working now, but it still uses the old protocol we had before and I am attracted to the idea of either emulating the Softrock interface, or modifying your firmware so the Si5351 will work.? I don't know if I will have time to get this going, but I'm looking at it a bit.

Thanks so much for your work on the Softrock firmware, and for your very helpful hints here!

73,

Rob

KL7NA

--
Rob Frohne, Ph.D. P.E.
E. F. Cross School of Engineering
Walla Walla University
100 SW 4th Street
College Place, WA 99362
(509) 527-2075