DuetWifi & PanelDue 10-Pin Ribbon Cable Hookup Clarification



  • Hi,

    I'm considering connecting the DuetWifi to the PanelDue via the 10-pin ribbon cable so as to gain use of the SD card reader on the PanelDue.

    However, having looked at the pinout of the two corresponding connectors on the two devices, there's something I find very confusing and would appreciate advice on.

    First, details about the hardware versions in question:
    DuetWifi - Duet2 Ver. 1.03
    PanelDue (5") - PanelDue Ver. 3.0a

    Going by the guide published here, it is possible to connect the regular 4-pin cable between the DuetWifi and the PanelDue (in order to be able to use the display), as well as a 10-pin ribbon cable between the 'conn_sd' socket on the DuetWifi and the corresponding socket on the PanelDue (thus enabling the SD card reader on the PanelDue).

    So my first question is just to verify that both the 4-pin cable and the 10-pin ribbon cable may be connected simultaneously between the DuetWifi and PanelDue?

    Moving on, the hook-up described above ought to be simple enough, but having checked the pinout legends of these 2 x 10-pin sockets on the actual PCBs, they don't seem to match neither in name nor in function.

    Unless I'm totally mistaken, the pinout of the DuetWifi's 'conn_sd' socket looks like this:

    GND / SPI0_SCK / SPI0_MISO / 3.3V / NC

    NC / SPI0_CS / SPI0_MOSI / ENC_SW / NC

    Yet, the pinout of the corresponding 10-pin socket on the PanelDue looks like this:

    5V / CS / DI / NC / DOUT

    GND / CLK / DO / NC / DIN

    It might have been assumed that it's just a matter of different naming conventions, but just to take two example:

    (1) The first socket specifies 3.3V whereas the second 5V

    (2) The locations of VCC & GND pins don't seem to match one another on the two sockets.

    Assuming a regular 10-pin ribbon cable has matching pins on each end, I find it difficult to see how it could be used to simply connect between the 2 said sockets.

    Could someone who understands all this please clarify this issue?

    Many thanks in advance,
    SnowCrash



  • You can use both the 4 pin and the 10 pin cables, just the former, or just the latter. No really reason to use both, though.

    Unsure where you pulled the Conn_SD pinout from, but it looks incorrect. Try here:

    https://github.com/T3P3/Duet/blob/master/Duet2/Duet2v1.03/Duet2_Schematic_v1.03.pdf

    That should hopefully rectify your concerns, the others are just pin nomenclatures.



  • Thanks elmoret!

    @elmoret said in DuetWifi & PanelDue 10-Pin Ribbon Cable Hookup Clarification:

    You can use both the 4 pin and the 10 pin cables, just the former, or just the latter. No really reason to use both, though.

    Got it.

    Unsure where you pulled the Conn_SD pinout from, but it looks incorrect.

    Well, I pulled it from the official pinout diagram of the DuetWifi published here ... 🙂

    I guess Duet3D might want to correct this.

    Try here:

    https://github.com/T3P3/Duet/blob/master/Duet2/Duet2v1.03/Duet2_Schematic_v1.03.pdf

    Thanks for the pointer! I actually have both the pinout and circuit diagrams on my desktop - it was just easier to simply look it up in the former than go searching for the relevant section in the latter.

    That should hopefully rectify your concerns, the others are just pin nomenclatures.

    The circuit diagram does make much more sense!

    I appreciate the help!

    All the best,
    SnowCrash


  • administrators

    Got it, I need to update that part of the circuit diagram to v1.01+


  • administrators



  • Excellent job, T3P3Tony, thanks!

    On a sidenote, since the new forum was launched, I haven't been receiving email notifications about new posts in threads I'm watching like this one. Might be worth checking if this feature is working properly.

    All the best,
    SnowCrash



  • @snowcrash DId you set up the new notifications in the new software? That is something that did not transition from the old forum software, and has to be set up separately. I find the new notifications (with the new forum software) much more reliable than with the old.


  • administrators

    @snowcrash check your profile settings.



  • @johnocfii said in DuetWifi & PanelDue 10-Pin Ribbon Cable Hookup Clarification:

    @snowcrash DId you set up the new notifications in the new software? That is something that did not transition from the old forum software, and has to be set up separately. I find the new notifications (with the new forum software) much more reliable than with the old.

    @t3p3tony said in DuetWifi & PanelDue 10-Pin Ribbon Cable Hookup Clarification:

    @snowcrash check your profile settings.

    Thanks JohnOCFII & T3P3Tony!

    You were both right - the settings needed updating 🙂



  • @t3p3tony said in DuetWifi & PanelDue 10-Pin Ribbon Cable Hookup Clarification:

    @t3p3tony and now its fixed:

    I'm not sure this is the correct place to post this comment, but it's related to previous posts so here goes.

    Having done a lot of work in the past couple of weeks with this excellent pinout diagram, it occurred to me to suggest a tweak that I know would be very helpful to me and hopefully to others as well.

    The connectors on the board are of course keyed, however, the diagram doesn't reflect the keying direction. This means that when making a new cable for one of the connectors, I first refer to the diagram for the order of wires and then need to look at the actual board to check in which direction the connector is keyed.

    On the other hand, had the diagram also included the keying direction of each connector, it would make things much simpler as there wouldn't be a need to check the actual board when making new cables.



  • @snowcrash I had to open my enclosure today for the very same reason! So having the connector keys indicated on the diagram would be nice.


  • administrators

    Thanks for the recommendation. On my to-do list!


 

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