Can USB-KW24D512 USB work with the internal crystal (FEI mode)?

luwan · ‎03-21-2016

I am trying to enable USB on USB-KW24D512. Is the USB able to work with the internal clock (working at FEI mode)?

miduo · ‎03-22-2016

Hi,

We really do not recommend to using the FLL to clock the USB module, that will led a non-working USB applications. The MCGFLLCLK does not meet the USB jitter specifications for certification.

luwan · ‎03-22-2016

Hi,

I am now using PLL (PEE mode) and the USB CDC is able to shown as ACM0 (enumeration successfully).

But the board fails to tx/rx traffic, are there any guide lines to help for troubleshooting?

miduo · ‎03-23-2016

Hi,

Please let me know the what board you are using? The customer board or the evaluation board?