I'll have to look and see which Si5351 lib I'm using but I get the 12MHz out. However, do you know of any reason not to switch CLK2 for CLK1?
Thanks!
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On 6/26/2017 9:29 AM, Vince Vielhaber wrote:
Actually the VFO uses CLK2. I'm also building up a second one for mods
and the first mod is my own VFO which utilizes both CLK2 for the VFO and
CLK0 for the BFO. Odd thing tho, I couldn't get 12MHZ out of CLK0 with
the si5351 library that the Raduino uses. Switching to Pavel's library
solved that problem tho. My guess is because the other library uses PLL-A
for CLK0-2 and PLL-B for CLK3-7. The problem is the si5351A only has
CLK0-2 so that library sticks us with only PLL-A. Pavel's doesn't do that
- hence his 2 of 3 rule.
Vince.
HI All,
I've been working on putting together another BITX40. I didn't leave
myself enough room in the old lashup for mods and additions. This time I
decided to use SMA connectors for all the RF, VFO/BFO/RFOUT. Nice to
have real fittings instead of clips. Anyway, as I route the new wiring
it would be more convenient to switch the BFO to CLK0 and the BFO to
CLK1. Then I could avoid having the coax cross as it goes to the board.
I seem to remember that there is some reason that the VFO was on CLK1,
board cross talk maybe or something. Anyone know why that is?
Thanks!
Jonathan - KK6RPX
