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[Paparazzi-devel] No USB device error

From: Marko Thaler
Subject: [Paparazzi-devel] No USB device error
Date: Mon, 26 Jul 2010 22:23:24 +0200

Hello everybody,

I am testing a newly assembled Booz main board. Loading the USB Boot Loader went smoothly.

However, when I try to program it through USB, I get a no USB device error. USB access rights and device rules are OK. Dmesg and lsusb do not detect the board.

I have tested all the mini-USB connections on the board and everything is fine. The board input voltage through USB is 5V (USB_VBUS), however USB_VBUS_3V3 line (P0.23 pin) has 0V - the voltage drop on R9 is 5V!

Any suggestions what to try next?

Thank you for your help.

Kind regards,


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