Processor Expert SoftwareのトピックRe: K60 USB Module - clock requirement

K60 USB Module - clock requirement

rc — Tue, 21 Aug 2012 23:08:34 GMT

I've done some searching in the forums and the help archives, but have not been able to confirm whether a 48MHz (or higher) clock is required to use the K60 USB module.

Currently I plan on using an 8MHz crystal for the system clock (EXTAL input on the K60), can I use this to internally generate the 48MHz required for USB?

Re: K60 USB Module - clock requirement

MVa — Wed, 22 Aug 2012 21:02:07 GMT

Hi,

USB FS module requires 48 MHz clock. See chapter 5.7.7 USB FS OTG Controller clocking in the reference manual (or attached picture).

One possible clock setting of the CPU component is shown in attached screenshot.

Best Regards

MVa

Re: K60 USB Module - clock requirement

rcallagh — Thu, 23 Aug 2012 03:57:02 GMT

Thanks!