BL702 CapCode values for 10 pF XTAL

makc

Hello,
What is recommended CapCode value for 10 pF XTAL?
Documentation provides us with values for 12 pF XTAL (32 to 36), but doesn't state how to check that selected value matches PCB design. How I could check, that selected CapCode is suitable for my design?

makc

I've brought out XTAL 32M clock to the external MCU pin using clk_out_1 function and measured actual clock period with oscilloscope R&S RTE1204. I've got 32.001 MHz with S-dev about 101 kHz.
My firmware makes CapCode setup using AON_Set_Xtal_CapCode in main() after bflb_platform_init(0) call:

AON_Set_Xtal_CapCode(30, 30);

But when I change 30 to some other value and reflash/reboot MCU nothing changes in frequency value at output pin. Is this right? What is the right CapCode setup sequence?