why I cannot start external xo.

in my own 52833 system.

the same code and the same pcb. but one board can  use uart0 well and another board find many charater crashed when uart0 is used.

and I find the system is using inner xo, for the HFCLKSTAT SRC bit is 0.

so I think the external xo is not used.

another question: even the external xo is not used . why the board cannot use uart0 well?  the two boards has the same HFCLKSTAT SRC bit (0)

how can I code to enable external XO?

thanks.

Related