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troubleshooting.md

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Troubleshooting options if you notice either the Red or Green LED flashing on the robot.

Using GDTv1.4 or later:

  1. On a windows machine, open GDTv1.4
  2. Make sure you are connected to the robot computer, either wirelessly or wired.
  3. Reset all 3 microcontroller boards by clicking on the three respective 'Application Mode' buttons.
  4. Power cycle the robot.

Using command line if GDT doesn't respond: (Steps to reset the 3 microcontrollers)

  1. First SSH into gvrbot using IP address 192.168.0.101. username is 'gvrbot' and password is 'modern'
  2. Then depending on the board you wish to reset, execute the resepective commands.

  • To restore Power Management Micro from bootloader mode to application mode:

    • ./scripts/stop_gvrbot_ros.sh
    • After you see 'gvrbot stop/waiting',
    • sudo /opt/gvrbot-dfu-programmer/bin/dfu-programmer gvrbot-pm start
    • This will cause the robot to power cycle. On bootup, the power micro should be in application mode indicated by a steady green light.

  • To restore Mobility Micro from bootloader mode to application mode:

    • ./scripts/stop_gvrbot_ros.sh
    • After you see 'gvrbot stop/waiting',
    • sudo /opt/gvrbot-dfu-programmer/bin/dfu-programmer gvrbot-mobility start
    • This will cause the flashing red LED to turn off. You need to power cycle the robot for changes to take effect.
    • On bootup, both the red and green LEDs should glow steadily.
    • If the red light still flashes, the Flipper micro may be in bootloader mode and needs to be reset.

  • To restore Flipper Micro from bootloader mode to application mode:

    • ./scripts/stop_gvrbot_ros.sh
    • After you see 'gvrbot stop/waiting',
    • sudo /opt/gvrbot-dfu-programmer/bin/dfu-programmer gvrbot-flipper start
    • This will cause the flashing red LED to turn off. You need to power cycle the robot for changes to take effect.
    • On bootup, both the red and green LEDs should glow steadily.
  1. After resetting the microcontrollers, run controller_start.sh from /home/user1/catkin_ws/src/gvrbot_controller/scripts and verify that communication has been established with the three boards.