How to configure LPUART clock properly on KL17

ken_sloat — Tue, 03 May 2016 03:17:29 GMT

I am wondering how to properly configure the LPUART clock frequency on a KL17. I see in the driver where I can set the clock source:

* 00: Clock Disabled

* 01: IRC48M

* 10: OSCERCLK

* 11: MCGIRCCLK

Currently we have IRC48M, but since this seems to be an internal clock, we believe it may be inaccurate because we're seeing occasional junk characters on UART. I could change it to OSCERCLK, however with a 32K oscillator we won't be able to properly hit 115200 baud.

Btw this is using KSDK 2.0

Re: How to configure LPUART clock properly on KL17

Alice_Yang — Tue, 03 May 2016 04:08:18 GMT

Hello Kenneth,

You can refer to the demo under KSDK :boards\frdmkl43z\driver_examples\lpuart

If still can not work , please tell me the part number of your chip, and show the code about

how to configure.

Hope it helps

Alice

topic Re: How to configure LPUART clock properly on KL17 in Kinetis Software Development Kit

How to configure LPUART clock properly on KL17

Re: How to configure LPUART clock properly on KL17