I found some pictures on twitter.
Interesting to see here my pictures 🤔🙂
But that´s not the main reason for my posting.
I tested the external ref and it works like it should. The CLK_Out is activated after CLK_Source is set to external.
Also the PTT works if you set the "adress" correct.
not made deep tests while busy with other things but thought it could be interesting for other to hear good news.
use Putty or what you prefer
login with 'root' - 'analog'
fw_setenv refclk_source external // this enables the CLK_IN/OUT
pluto_reboot reset // reboots pluto and the CLK_IN is active
If your reference is not perfect you can correct it with:
fw_setenv xo_correction 39999750 // for example
Changing the frequency is done with:
fw_setenv ad936x_ext_refclk '<25000000>' // You must use ' NOT " as describes in the WIKI since 0.32!
Or you use: fw_setenv ad936x_ext_refclk_override '<25000000>'
Don´t forget to reboot the Pluto to apply the changes with:
Easy and fast done.
Hope it helps.