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USB is hanging

michaelhock9
Associate

Posted on August 04, 2010 at 11:17

Hi,

I have a problem with a USB transfer.

My application is run normal I do a connection with an external PC. During a special test the application must do a reset. After this a software do not came up with the USB communication. On the USB line is only a rectangle signal, no USB descriptor is seen on the PC. The USB On (1k5) line is high.

The software is based on a older app note from ST.

The main loop is running

Can anyone help me

J

Hopefully

michael

 

#str7-usb-arm

 

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