search

anqixu / ueye_cam

A ROS nodelet and node that wraps the driver API for UEye cameras by IDS Imaging Development Systems GMBH.
Other
60 stars 102 forks source link

no recovery after timeout #58

Open kilmarnock opened 7 years ago

kilmarnock commented 7 years ago

Hi! I have a problem you probably could give me an advice. I observe timeouts with my UI1221LE-M-GL. I read #6. I tried ARM, amd64, usb2 + usb3. I changed the pixel_clock settings, all in auto mode. I bought an pcie2usb adapter. I measure the Bus > 5 Volt. The cam gets more stable when I disconnect each and every usb device.

Each time the timeout occurs, the node is lost, it does not recover from timing out, it basically loops in the timeout (UEyeCamDriver::processNextFrame: is_err == IS_TIMED_OUT). Until now, I had to disconnect the cam and restart the node. I thought that the hardware crashes for some reason.

Today I found this trick: echo "0" > /sys/bus/usb/devices/usb2/authorized -> /dev/ueye disappears echo "1" > /sys/bus/usb/devices/usb2/authorized -> /dev/ueye reappears Then I can continue until the next timeout.

Correct me if I am wrong, but it does not seem to be hardware issue.

ueyecamerademo recovers and just counts missed frames.

Do you have a clue for me where to look now?

kilmarnock commented 7 years ago

after the timeout, the camera hangs even after a restart of the ros driver and the ueye daemon. EyeCamDriver::setFreeRunMode() leads to !freeRunModeActive() and setStandbyMode() where it stays forever.

anqixu commented 6 years ago

Sorry I'm still not able to replicate your results, and given that I don't have access to uEye cameras, so it will be hard to debug.