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USB errors. Reason - WiFi?
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Andrey Koshurnikov
Joined: 06 Aug 2012, 13:24
Posts: 3
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| 07 Aug 2012, 05:09 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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Hi Andrey,
try to connect body of usb connector direct to GND.Currently it is conected via capacitor and resistor.
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| 07 Aug 2012, 06:08 |
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Andrey Koshurnikov
Joined: 06 Aug 2012, 13:24
Posts: 3
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| 07 Aug 2012, 06:18 |
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NaYthan
Joined: 14 May 2012, 15:48
Posts: 196
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Now that is interesting. I've been having USB issues with my compact PCB design as well. I've been trying to get Webcam streaming over WiFi into a compact form factor.
If this is really a problem caused by WiFi interference, maybe it could be solved by using an external antenna rather than the on board chip antenna.
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| 07 Aug 2012, 07:30 |
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Andrey Koshurnikov
Joined: 06 Aug 2012, 13:24
Posts: 3
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| 07 Aug 2012, 07:56 |
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jedas
Joined: 05 Apr 2012, 10:23
Posts: 25
Location: Lithuania
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If the application permits, try external usb hub. No matter if it's active(powered) or not. I have two cases when it helped.
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| 09 Aug 2012, 09:57 |
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ssozonoff
Joined: 22 May 2012, 08:47
Posts: 18
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Hi,
I have tried this and it did not help.
Serge
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| 09 Aug 2012, 10:13 |
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marc-dev
Joined: 15 Aug 2012, 09:46
Posts: 1
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Hi,
same here. I have no dev board and wired a usb cable wildly around the board. The 10k resistor for host/otg selection crossed the wifi antenna only a few milimeters.Every time wifi had load (ssh typing) the usb connection got lost. So I changed the location of the resistor and usb connection is fine now. Maybe a ground connected shield from the usb cable would be nice too.
Greetings marc-dev
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| 15 Aug 2012, 10:19 |
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NaYthan
Joined: 14 May 2012, 15:48
Posts: 196
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| 15 Aug 2012, 10:28 |
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Zodiac69
Joined: 10 Jul 2012, 07:10
Posts: 25
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Hi Andrey
Have you managed to fit a "Shield" yet, and if so, what is the results looking like?
Z69
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| 24 Aug 2012, 17:36 |
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