Red Blinking Robot Light Flowchart Request.

  1. 3 months ago

    AperatureLabs

    Mar 13 V5 Beta Tester Georgia 30047

    So we have encountered several errors causing the Red Light of Death on the Cortex, and wanted to request input for making a flowchart to address what happened and how to prevent it in the future.

    Does code run at all? Y: Continue; N: [list of usual novice coding errors outside of input based operations]

    Does the light happen after a repeatable controller or sensor condition? N: Continue; Y: [something inside input based operations]

    Are IMEs used? Y: [Assess if ESD is the issue and if not, continue] N:Continue

    Does impact cause some of the problems? Y: Ensure battery, battery connection, and USB connections are secure, and possibly shock mount battery, battery extender, and cortex using rubber connectors or antislip mats. N: Continue

    ????

    I am not sure what happens after this. I often encounter random and unrepeatable cortex crashes while running basic custom control code on clawbots as well as on our competition bot.

  2. Barin

    Mar 13 Arizona

    @AperatureLabs So we have encountered several errors causing the Red Light of Death on the Cortex, and wanted to request input for making a flowchart to address what happened and how to prevent it in the future.

    Does code run at all? Y: Continue; N: [list of usual novice coding errors outside of input based operations]

    Does the light happen after a repeatable controller or sensor condition? N: Continue; Y: [something inside input based operations]

    Are IMEs used? Y: [Assess if ESD is the issue and if not, continue] N:Continue

    Does impact cause some of the problems? Y: Ensure battery, battery connection, and USB connections are secure, and possibly shock mount battery, battery extender, and cortex using rubber connectors or antislip mats. N: Continue

    ????

    I am not sure what happens after this. I often encounter random and unrepeatable cortex crashes while running basic custom control code on clawbots as well as on our competition bot.

    https://content.vexrobotics.com/docs/VEX-Robot-Troubleshooting-Flowchart-20140430.pdf

  3. AperatureLabs

    Mar 13 V5 Beta Tester Georgia 30047

    Thanks @Barin, but when you have a slow single blinking light, there is only one square on the flowchart, and it isn't even complete. Sometimes shock/vibration or ESD can cause the problem, and not just code. That one square is what I am trying to elaborate in.

  4. Barin

    Mar 13 Arizona

    @AperatureLabs Thanks @Barin, but when you have a slow single blinking light, there is only one square on the flowchart, and it isn't even complete. Sometimes shock/vibration or ESD can cause the problem, and not just code. That one square is what I am trying to elaborate in.

    The problem is that the user processor has crashed. That can be caused by a software bug, IME static, or a number of other things. You can't really 'complete' that branch of the flowchart.

 

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