Hi,
We want to calibrate the RF frequency(48 MHz crystal) in the factory.
Purpose it to remove initial offset for the crystal.
We could have used cap_array to compensate, but such adjustment is too coarse.
Writing it to CCFG memory segment seem logical since it will survive firmware upgrade in the field.
And there is 32bit data area in CCFG called "FREQ_OFFSET Register (Offset = 1FC4h) [reset = FFFFFFFFh]"
But looks like it is intended for such use, but it is reserved for future use.
A) Can we use this register to store our frequency offset information? Or is the registered tied to some internal low level compensation functions, that are undocumented?
We just want a placeholder for this info. We expect to read this a compensate our self in the RF drivers.
