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FYSETC / FYSETC-SPIDER

FYSETC Board - 3d printer motherboard for VORON and other open source project.
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Issues with USB and UART connections on several Spider boards, can't flash #63

Closed ad0ll closed 2 years ago

ad0ll commented 2 years ago

I've somehow exhausted my supply of 6x Spider 1.1 boards, and am not sure what my next steps are.

The problem: Can't connect to boards over USB. The 3.3v light won't come on. Each board worked initially, and then stopped working after adding and removing stepper drivers and moving cords around.

Here's what I've tried so far:

  1. I've left jumpers between VMOT and MAIN_PWR per these instructions for several hours. Still can't get 3.3v to turn on.
  2. I've tried disconnecting all my stepper drivers. I can't connect with or without them plugged in
  3. I've tried powering the boards with USB, 24v and UART
  4. I've swapped out cords several times
  5. I've swapped out stepper drivers with new ones a few times
  6. Visually inspecting for damage to the best of my ability
  7. Checked the fuses with a multimeter
  8. Removing all jumpers on one board

For three of the boards, I remember the exact point they stopped working.

  1. One stopped working when I plugged in the uart cable upside down.
  2. One stopped working when I plugged in a stepper driver upside down
  3. One stopped working when the silkscreen on one's FFC mod stripped and the screw caused the heater wires to short
  4. For the other three, they worked when powered on the first time, and then stopped working after power cycling a few times

Each board displays the problem in subtly different ways, but the net result is the same, not being able to connect over USB and not being able to flash them:

  1. 5 of them will show the 24v LED when powered on, and then the 24v LED will take a very long time (30 seconds) to dim out.
  2. 2 of them will power on with 24v, but will shut off my Pi when I attempt to power with
  3. One board shorts my PSU and shorts with UART. I've disconnected everything and can't find a short on the board. This is the only one that won't power on. Instead, the 24v light fades in and out at a rhythm.
  4. The flash led doesn't power on on any of them

Is there anything I can do to definitively prove that my 6 boards are either working or are broken? And if broken, is there a warranty on the boards? This has been an expensive and time consuming experiment, so I'm looking at the Octopus unless there's something I can do to get these to work.

ad0ll commented 2 years ago

Talked to the vendor about the issues. Several boards are having the "3.3v issue" characteristic of the 1.x boards. Vendor says this problem is fixed in 2.2 and is sending me 3 replacement boards.