lpcware

LPC2378 USB CDC question

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by msangalli on Thu Feb 18 03:30:45 MST 2016
Hi, recently I've added a CDC support to a LPC2378 starting from keil demo sw
(compiled using rowley ide) On windows I've used usbser.sys driver .
Just after one minute or less USB communication blocks and never resumes.
I've observed SOF frames and NYET answer evey 1m but no other activity.
On LPC side I've detected a NAK (err=9) reading last error from SIE (0x11= PID error, EOP error)
Question: How I can recovery such situation without resetting the CPU?
Thanks,
Mario

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