Thread: [FRC Blog] Einstein Report Released
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Unread 07-22-2012, 08:57 AM
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Tetraman Tetraman is offline
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Re: [FRC Blog] Einstein Report Released
Quote:
Originally Posted by EricVanWyk View Post
Super Simple Priority Inversion:

Robot: Gyro, please reset yourself and verify proper operation.

Gyro: ... WHY IS THE EVERYTHING SPINNING SO FAST? HELP! ...

Robot: Are you working yet? How about now?

Vision Processor: Hey Robot, here is a whole lot of data for you.

Robot: Not now, I'm still waiting for Gyro to tell me he is ok. Put it in my mailbox, I'll get to it as soon as Gyro is ok.

Gyro: ... *puke* ...

Field: Robot, I keep telling you to reboot, but there there is nowhere for me to put my message to you.

Result: The robot code locks up. The cRIO's safety mechanisms kick in and prevent the bot from moving. This is actually a good thing. The bad part was that it wasn't able to get the command to reboot and try again.
Thank you very much for the laugh.

I made this for you:

http://i49.tinypic.com/ac9s5.png
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