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Unread 17-03-2012, 12:57
Greg McKaskle Greg McKaskle is offline
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Re: motors enabled while cRIO reboots (Safety hazard)

When the cRIO reboots, all code, even FRC_Communications is halted and the OS image is reloaded. The FPGA is also reimaged. During this time, the digital sidecars enable line should prevent the relays from being on. A few times in the past, we have seen sidecars where the enable line was blown or shorted, not sure which as I'm the SW guy, and this would mean that in a disabled state, the relays were live. It seems unlikely that this would happen on two sidecars. It also seems unlikely that this is new or has been there the whole time.

Please try with a trusted sidecar, and can you give details on what the direction of the relay was?

Greg McKaskle
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