Setup: ZC702 + FMCOMMS5
We swapped the default 40MHz +/-25ppm crystal on the FMCOMMS5 (RXO3225M) for a 48MHz +/- 5ppm one via some very careful soldering. However, when we attempt to update the frequency by setting echo 48000000 > /sys/bus/iio/devices/iio:device1/xo_correction, the board automatically reverts to 40000000. Setting it to a smaller value such as 40000100 works just fine.
Is there a way to set the crystal frequency of the FMCOMMS5 beyond minor adjustments?