Re: [Playerstage-users] Magellan ptz sony evid30

[<Dou...@in...>]

Up until about mid-2002 all Sony PTZ units shipped on RWI and iRobot robots h=
ad half-duplex serial cables.

Doug Few



----- Original Message -----
From: Brian Gerkey [br...@ge...]
Sent: 07/04/2006 10:45 AM
To: pla...@li...
Subject: Re: [Playerstage-users] Magellan ptz sony evid30


On Jul 4, 2006, at 12:10 AM, Eric Innis wrote:

> Yeah, I tried that.  Unfortunately changing the camera ID didn't fix
> it.  Right now I'm digging into the driver.  The mobility driver works
> fine, but the player driver never receives any reply from the camera.
> I can send commands successfully but not receive acks or data.

I wonder if your camera is connected via a half-duplex serial cable,  
allowing only host->camera communication.  It's possible to command  
the Sony PTZ unit without getting any feedback, which may be what  
Mobility is doing (this is how the PTZs were controlled by Ayllu when  
connected to the AUX port on P2OS-controlled robots).  The Player  
driver requires full duplex comms.

	brian.

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