I have a new Adalm-Pluto rev.C and I want to give it an external reference clock, e.g: 10 MHz.
What is the correct set of instructions I need to use to configure the device (rev. C) to accept an external clock?
External references are selected through environment variables on Pluto. See here: https://wiki.analog.com/university/tools/pluto/devs/booting
For required clock specs see the AD9363 datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/AD9363.pdf
It may be useful to look at the design documents for more detailed information: https://www.analog.com/en/design-center/landing-pages/001/integrated-rf-agile-transceiver-design-resources.html
Note that due to the lead frame on Pluto, external references below 40 MHz tend not to function.