FRDM-KL43Z Virtual Serial Port Settings

[thomasedel]

I'm wanting to speed up the virtual serial port, if possible.  The default baud rate between the OpenSDA controller and the KL43Z appears to be 9600 baud (derived from example code).  Is it possible to increase that setting (at the OpenSDA end)?  Is there any documentation available regarding the virtual serial port settings?  The OpenSDA User's Guide (2012-09-18, Rev. 0.93) doesn't appear to discuss the settings.

Thanks for your help.

-Thomas

[kerryzhou]

Hi Thomas Edel,

   Just as Mark Butcheer have said, the virtual seial is determined by your KL43 uart configuration.

    If you want to get other baud rate, just configure it in your KL43 code.

Wish it helps you!

If you still have question, please let me know!

Have a great day,
Kerry

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[thomasedel]

Thank you, Mark & Kerry.  I didn't understand that the Open SDA controller self-configured to the PC's baud rate setting.

-Thomas

[mjbcswitzerland · Accepted solution]

Hi Thomas

The OpenSDA VCOM is a CDC class which gets its settings from the PC host (eg. the terminal emulator it is connected to). These need to match with the speed of the KL43's LPUART, which is set by the firmware running on the KL43.

See http://www.utasker.com/kinetis/FRDM-KL43Z.html and the video: https://youtu.be/89sZ4nW-mgw

Regards

Mark