Hello,
I am using USB CDC class with MK20DX128VLH5, I am trying to identify the USB unplugging from the USB host device(PC),But i can't recognize it.Please any one help me how to identify USB unplugging from USB host device(PC) in the CDC class code.
Thanks,
vanaja.
Hi
When the cable is removed the device will detect a USB suspend state (>3ms idle line- (low speed D+ = 0, D- = 1 / high speed D+ = 1, D- = 0)).
See the SLEEP flag in the INT_STAT register.
Therefore the suspend interrupt can be used to detect this.
Regards
Mark
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Hi Mark
Thanks for your reply,
I will check it and get back to you,if any.
Thanks,
vanaja.
On Fri, Oct 30, 2015 at 7:37 PM, mjbcswitzerland <