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Re: [Paparazzi-devel] Flashing problems

From: Prof. Dr.-Ing. Heinrich Warmers
Subject: Re: [Paparazzi-devel] Flashing problems
Date: Sun, 17 May 2009 11:54:28 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; de-DE; rv:1.4) Gecko/20030619 Netscape/7.1 (ax)

please check the usb voltage on your PC.
Sometimes we have found voltages up to 8 V.
The lpc2148 is very sensitive for static voltages.
Often the connection interface pin is dead.
You can program it on a other pin.
We had to change up to  3 processors.
You can flash by the normal  serial way,
if the USB connection pins are dead.

Heinirch Warmers

Loris Rion schrieb:


We are a group of student at Isae/Supaero in Toulouse. We use a TWOG v1 paparazzi system.

Everything was going well until this morning, we tried to flash the board but it did not work. We tried two USB cables and checked connections and it looks good. When we click on update on the GCS and then we power on paparazzi, the dotted line stops for one or two seconds and then go on to the right. Then it said "No USB device". We tried with an old airframe and flight plan and we have the same problem.

Our board is still working (we have the datalink, GPS ...)

Thank you very much.

Loris Rion

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