Cortex Microcontroller and VEXnet Joystick User Guide
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5. Diagnostics Information: refer to the following chart for Joystick and Cortex LED patterns and meanings.
Robot, VEXnet, and Game LED’s
show the same data [2]
Joystick [5] Robot VEXnet Game
Medium (yellow) Initialize - Looking for PC or Tether Mate
Blip (yellow) Startup - Looking for USB Key
Fast (yellow) Linking - Searching for VEXnet Mate
Fast (green) Linked
Slow (green / yellow) Linked - Data quality reduced
Slow (green / red) Linked - Poor Data quality reduced
Solid (green) Tethered to Mate or PC
Slow (red) single blink Fault: Lost Link - Searching for VEXnet Mate
Slow (green) Downloading User Code [1]
Note 1: Does not apply to ROBOTC User Code Downloads
Joystick [5]
VEXnet Game
(red)
Main Battery = Dead (<5.5v) or CORTEX Off [2]
(yellow)
Main Battery = Low (<6.5v) [2]
(green)
Solid All Good: Both Joysticks connected
Solid + 1 Blink
All Good: Tx1 Joystick connected
Fast Autonomous only mode
Fast (red) [3] Fault: Low Backup Battery (0v-8v)
Slow (red) Fault: User Microprocessor Issue
Note 1: Robot LED only work when Linked
Note 2: Lowest CORTEX battery color latched at Joystick and CORTEX
Note 3: No Backup Battery only indicated if competition cable is connected.
Joystick [5] Robot VEXnet Game
Off No Competition connection
Solid (green) Driver [4]
Fast (green) Autonomous
Fast (yellow) Disabled
Note 4 : Game LED Driver Indicator is only used when the competition cable is connected.
Robot VEXnet Game
(red)
Joystick Battery = Dead (<5.5v)
(yellow)
Joystick Battery = Low (<6.5v)
(green)
Fast Two Joysticks in use
Solid One Joystick in use
Note 5 : Joystick LED only on Joystick.
Update Utility Tool Indicators
Joystick [5]
Robot VEXnet Game
Solid (green) Tether to PC
Slow (green) Flickering (green) Bootload Mode - Ready to update firmware
Slow (green) Slow (red) Flickering (green) Downloading Master Code
Other Indicators
Joystick [5]
Robot VEXnet Game
(red) (red) (red) (red) Flash on all 3 indicates a Reset
Slow (red) double blink NO VEXnet Key detected
Slow (red) double blink Invaild ID in the CORTEX
Slow (red) double blink Invaild ID in the Joystick
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