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Problem Programming with SD plugged in. — Parallax Forums

Problem Programming with SD plugged in.

PropTool does not program at all with SD inserted (can't find P2)

FlexProp needs a Power Cycle of Board & SD.




  • evanhevanh Posts: 14,231

    Delete the boot file off the SD card.

  • msrobotsmsrobots Posts: 3,670

    no bootfile on sd, fresh formatted, just some textfiles for webserver

    PropTool, does not find P2 with SD inserted, FlexProp needs PowerCyle of JonnyMac


  • evanhevanh Posts: 14,231

    Okay, only other thing is a something dragging P59 low forces an SD only boot when a card is inserted.

  • msrobotsmsrobots Posts: 3,670

    hmm - Flash on, both other switches OFF so serial and flash booting.

    Why does it care about the sd?

    works fine on eval, fails with edge.


  • evanhevanh Posts: 14,231
    edited 2023-03-26 04:56

    I meant something other than those dip switches. Check its voltage. Maybe put a pull-up on there to help out.

  • This is an issue with the Edge. I have suggested that the next iteration of Edge power cycle the SD card with reset.

    Use RAM (F10) until you are ready to save to flash. Unplug and reinsert the SD card then program the FLASH (F11). That was my workaround.

  • evanhevanh Posts: 14,231

    Really? Doesn't affect the Eval Boards?

  • VonSzarvasVonSzarvas Posts: 3,035
    edited 2023-03-28 07:42

    @evanh said:
    Really? Doesn't affect the Eval Boards?

    I was thinking the same....Now a dusty memory, but I thought they used the same circuit.
    hmm.. almost... the EVAL will reset memory when RESET button pressed. Although shouldn't reset from a programming reset, so that would suggest the functionality would be the same as Edge.

    One thing the EVAL does have though... the footprints to enable SD card power reset from IO P57. The schematic has the instructions.

  • Ah, I see EVAL also powercycles Flash & SD when you hold the reset button a moment.

  • We really need this on the Edge.

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