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using FRDM-KL03Z LPUART0 at 115200 baud

Question asked by Ramesh Iyer on Apr 28, 2017
Latest reply on May 1, 2017 by Ramesh Iyer

I am using a FRDM-KL03Z board.

The USB port is connected to my Windows PC and I run a putty session to connect to the UART.

115200 baud, 8 bits per char, 1 stop, no parity, no handshake.

I have programmed the LPUART0 like wise. 

LPUART0 Clk is from MCGPCLK(internal 48 Mhz), OSR is 15 and the SBR value is also fine.

I see garbage on the terminal when I send chars from the board.

The UART works fine at 9600 baud.

I suspect that the 48 Mhz needs trimming, but where is the IPC_TRIM register?, I could not find any ref to this in the ref manual.

Has anyone tried this ?