Duet 3 6HC + Raspberry Pi 4 Not Connecting

[rkutun]

Problem Description:

When I try to access the Duet Web Control (DWC) interface, I get stuck with the message "Connecting..." and below it, an error appears stating: "Could not connect to Duet: Timeout while waiting for transfer ready pin."

I'm unsure how to resolve this issue. What could be causing this problem, and how can I fix it?

[Phaedrux]

Is this a new setup or an existing one? Has it ever worked?
Have you tried with a fresh DuetPi image on a fresh SD card?
What firmware is the Duet running?
Have you tested the board in standalone mode to verify it's working?
Have you checked continuity of the wires in the ribbon cable?

[rkutun]

@Phaedrux I am setting up a new system and running the board with RepRap firmware. The connection between the Raspberry Pi 4 and the Duet 3 6HC is established via a USB cable. I tested it in standalone mode, and I receive a warning in the YAT program. When running in standalone mode, should the SD card be inserted? If so, what files need to be present on the SD card? Could you please assist with this?

[jay_s_uk]

@remzirecep you can't run like that with a USB cable. To use DSF the pi has to be connected to the 6HC with the supplied ribbon cable

[rkutun]

@jay_s_uk I tried with that cable, but when I run it in standalone mode, I receive a warning in the YAT program, as shown in the attached image. Don’t I need to connect it with a USB cable when running in standalone mode?

[jay_s_uk]

@remzirecep when running standalone there no need for a pi at all. you just connect directly to the 6HC with an ethernet cable
You also need to have the appropriate files on an SD card in the 6HC

[rkutun]

@jay_s_uk I want to test the board in standalone mode by connecting it to my computer via a USB cable and using YAT for testing. However, I receive a warning in YAT, as shown in the attached image. I am following the steps from this link: "https://docs.duet3d.com/en/How_to_guides/Getting_connected/Getting_connected_to_your_Duet," but when I enter M552 S1 in the program, it doesn’t return an IP address. I would like to test it first, and then connect it with the SBC later.

[jay_s_uk]

@remzirecep I don't use YAT (I prefer putty) so can't help you with that

[rkutun]

@jay_s_uk If you can show me how to do it using PuTTY, I can try that as well.

[jay_s_uk]

@remzirecep these are the settings I use for setting up putty. https://teamgloomy.github.io/putty.html
it then works in the same way YAT does

[rkutun]

@jay_s_uk I applied the settings from the link you provided. In PuTTY, I’m getting the outputs shown in the attachment. Is this normal? When I typed M552, it didn’t return an IP address.

[jay_s_uk]

@remzirecep no, thats not normal.
Is the status LED flashing roughly once per second?

[rkutun]

@jay_s_uk The status LED is dimly lit.

[jay_s_uk]

@remzirecep then theres no firmware on the 6HC
follow these instructions https://docs.duet3d.com/en/User_manual/RepRapFirmware/Updating_firmware#all-other-duet-boards

[rkutun]

@jay_s_uk After applying the steps here, is the LED supposed to turn off? When I follow the steps and then plug in the Ethernet cable, my computer doesn’t detect the board’s port. Can you help me with this?

[jay_s_uk]

@remzirecep the LED is supposed to flash about once every second. What is it doing now?

[rkutun]

@jay_s_uk It stays dimly lit all the time.

[jay_s_uk]

@remzirecep then you haven't flashed the firmware to the board correctly

[rkutun]

@jay_s_uk I downloaded the Duet3Firmware_MB6HC.bin file from the "3.5.3 Release Candidate 1" section on this link: https://github.com/Duet3D/RepRapFirmware/releases. Then, I shorted the "erase" jumper on the board. After waiting for a few seconds, I removed the jumper and pressed the reset button. I used "Bossa" to flash the firmware I downloaded from the link mentioned above. After flashing, I clicked "Verify" and it was successful, but the LED is still constantly lit. What should I do next? If what I’ve done is not correct, what is the correct process? Is there anything I’ve missed or something I haven’t done?

[droftarts]

@remzirecep said in Duet 3 6HC + Raspberry Pi 4 Not Connecting:

I used "Bossa" to flash the firmware I downloaded from the link mentioned above. After flashing, I clicked "Verify" and it was successful, but the LED is still constantly lit. What should I do next? If what I’ve done is not correct, what is the correct process? Is there anything I’ve missed or something I haven’t done?

See my answer here: https://forum.duet3d.com/post/344927

Specifically, you need to check boxes "Erase all", "Lock", and "Boot to flash" in Bossa, before clicking "Write".

Ian