Hello after a while i still didn't find answer to my question and i'm still unable to set proper baudrate on lpuart0.
Before i start i want to say that i read almost every post about lpuart on the forum, config is correct except baudrate and clocking.
Formula from datasheet:
So i noticed that only value of 16 and 32 can be set in OSR field (15 and 31), any other value results in getting 16/32. Also in SBR field there is always "1" on third spot from LSB, so if i set 8 result in 12, 1 results in 5, 12 results in 12 etc.
Also there is no way to set FLL/PPL or IRC48M in SIM_SOPT2, value in the register doesn't want to change or clear, only fast internal oscillator can be set.
Knowing these problems i can easily predict what baudrate i will get but it's so problematic because setting any of typical baudrates highter than 9600 seems impossible.
Noticed that on custom K80 board also on FRDM-K82.
Any ideas what might be wrong?
Maybe it's a bug?