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SBG-Systems / sbg_ros_driver

ROS 1 driver for SBG Systems IMU/AHRS/INS units such as ELLIPSE or QUANTA.
https://www.sbg-systems.com
MIT License
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EllipseD not working with other USB devices #76

Open rmarcuzzi opened 2 years ago

rmarcuzzi commented 2 years ago

I'm trying to use the Ellipse D sensor using the USB cable connected to a USB hub and I'm getting SBG_TIME_OUT error, meaning that I can't connect to it. If I connect the device directly to the USB port of the computer it works perfectly, I can run the default example. However, when I connect it to the USB hub and try to run the example, it doesn't work. I see the same behaviour when connecting another USB GPS, I get also SBG_TIME_OUT. I've tried changing the baudrate from 115200 to 230400 and I see the same behaviour.

richardbraun commented 2 years ago

It seems that the USB hub is the culprit then. A low quality hub could add unreasonable latency on the communication path.

richardbraun commented 2 years ago

Also, do check that the serial port is correct after connecting through the USB hub.