AnsweredAssumed Answered

Not able to set 50MHz clock source for KV5 processor with MCUXpresso 10.1.1 and SDK 2.3.0

Question asked by Tomasz Ziajko on Feb 11, 2018
Latest reply on Feb 16, 2018 by Jorge Antonio Alcala Vazquez


I use TWR-KV58F220M board that has 50MHz external clock source and I am not able to set 50MHz in the MCUXpresso 10.1.1 and SDK 2.3.0. The tool tells me that the maximum allowed value is 48MHz. Is this a bug with the recent version of toolchain?


I assume that I should be able to set 50MHz as the reference clock, since the devboard i factory equipped with 50Mhz clock source by NXP.


Moreover using KDS with legacy KSDK 1.2 I am able to set 50MHz as clock frequency for this board, and I can confirm that such configuration works and has right peripheral timing (checked with oscilloscope).


Thank you for your help,

Best regards,

Tomasz Ziajko