Jack Purdum via Groups.Io wrote:
Hi Alf:
I still don't know for sure how the tuning constant is used. I'm
replacing the Si5351 DDS with a modified version of our VFO board
(Mar, 2016, /QST/) and a new TFT display so I haven't spent much time
with the code. Because of the graphics display, I had to change out
the Nano and go with the Mega 2560 Pro Mini. Those two boards sit on a
custom PCB that plugs into the back of the display. (See picture.)
Dennis (W6DQ) is working on the circuitry for an RF AGC, S meter, and
CW mode. When I get the mods done, I will likely write the last-used
frequency, WPM, and mode to EEPROM and then put a call to read those
values out in /setup()/ so they are active on power-up. I'm hoping to
learn more about the Raduino code when I start digging around for my
own code.
If I do find something, I'll let the group know.
Jack, W8TEE
Thank you Jack, look forward to seeing your project, by the way I ordered a book from a nice fellow:-) Beginning C for Arduino 2015 (2nd Edition) which I will take to our radio club to encourage a few members.
*73 Alf vk2yac*
