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chicagoedt / revo_robot

Code for EDT's IGVC entry, Revo.
http://www.igvc.org/
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Jetson TK1 usb serial port issue #68

Closed l0g1x closed 8 years ago

l0g1x commented 9 years ago

So seems like the localhost ping time is still not the source of the issue with why motor commands through our roboteq_node do not get sent consistently. I enabled all 4 CPU cores and set them to 'performance' frequencies, thinking that this may have been a issue with ROS messages not being sent fast enough (since localhost ping was about ~2.3ms where on radxa it is ~0.025).

Even though all CPU's are enabled, seems like all hardware interrupts are only being ran on CPU0 and not being distributed amongst all the available cores.

Seems like people here are having a similar issue with data packets being lost/ not consistently getting messages. https://github.com/code-iai/iai_kinect2/issues/4

l0g1x commented 9 years ago

http://l0g1x.pl/?p=35 wrote a blog post about it with a more detailed description