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USB enumeration failure in Z stack

Viswajith K A
Intellectual 590 points

Other Parts Discussed in Thread: CC2538

Hi,

I am working on project in z stack mesh network using CC2538. In my project firmware update of end device is planned through USB. But when POWER_SAVING symbol is defined the usb enumeration is getting failed. Without this symbol, there is no problem in usb operation. I have noticed that ,in z stack PC0 pin is used to give pull up to D+ line of usb. Is there any problem, to give a high to this pin when the processor is in sleep condition ? Or is there any other reason behind the failure of usb operation ? Kindly reply.