Printf garbage characters at 24Mhz

[AnWa_1259496]

I am using the Debug Printf UART functionality on a BLE Pioneer board.

   

This works properly if SYSCLK is set to 48Mhz. If its set to 24Mhz many of the displayed characters are garbage.

   

Has anyone else noticed this?

[ETRO_SSN583]

Sounds like baud rate changed ? Would a clean and build recalculate

   

the divisors ? Not sure.

       

Can you see bit timing changed with a scope ?

       

Regards, Dana.

[Bob_Marlowe]

I would suggest to check the clock accuracy in the clock view of the .cydwr-file. This may show different values for different system clock settings.

       

Bob