external reference clock in ad9361

Hello,

I have a problem that I can't solve despite searching the forum and the guide provided by analog device.

I have the ADRV9364-Z7020, ADRV9361-Z7035, ADRV1CRR-BOB and ADRV1CRR-FMC boards.

I want to connect an external oscillator, so for this I have to use a 26MHz TCXO on the ADRV9361-Z7035 + FMC board through the J1 connector. 
When I change the reference oscillator in the devicetree, when I start the board I get the following problem: RX Tuning FAILED.

 And also when I check the clock to use with cat / sys / kernel / debug / clk / clk_summary, I don't see the change I made in the reference clock. To resolve the first bug I followed what was recommended in the forum and disable the FIR filter and set adi, digital-interface-tune-skip-mode = <0x02>.
This way I no longer get the error in RX Tuning. 1) Can you help me with the setting of the reference speed? Where can the error be? 2) When I make the changes to eliminate the error in RX Tuning Failed. What problems can this bring me? On the other hand I tried to change the device tree of ADRV9364Z7020 + BOB and I can see the change in the clock setting. But I can't do it by combining ADRV9361-Z7035 + FMC,
I get the same problems that I already detailed. 3) Are there any errors or things that I have to take into account with the ADRV9361-Z7035 board? Attached is the device tree of AD9361-Z7035 + FMC.

DOCX Please I need help, Thanks. Nicole

Top Replies