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Unread 07-03-2010, 23:42
sparrowkc sparrowkc is offline
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AKA: Mark
FRC #1986 (Team Titanium)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: Lees Summit
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Re: Week one regional control system showstoppers

Quote:
Originally Posted by whytheheckme View Post
...Also, with regard to the First Problem, what type of compression/frame size are you using? It could be a bandwidth issue on the field, or just simply a different throughput of field equipment vs your kit router? (simply un-based thoughts, btw)

Jacob
320x240 compression=30 fps=10

We used these settings because they were a reasonable margin below the settings that caused >1sec lag on the classmate. I doubt bandwidth was the problem. Chrisisme's answer makes the most sense to me right now, we need to look into that some more. We ended up scrapping all of our camera code and physically unplugging the camera. The lag never came back, but who knows if it was the camera's fault or not...

On day two of the KC regional, we switched to a different usb hub and never saw the joystick problem again. We had been using the kit hub plugged into both ports-- the new one only plugs into one port so we pluged the joystick straight into the other port. At our next regional we probably won't be using a hub at all since we were told how to run without the USB Estop (Double click the stop button indicator light in the diagnostics tab of the DS software).
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Last edited by sparrowkc : 07-03-2010 at 23:50.