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Andrew Neil
Andrew Neil
Super User
March 10, 2018
Question

Difference between UM1974 & UM2179 - both ''Nucleo-144''

  • March 10, 2018
  • 12 replies
  • 4069 views
Posted on March 10, 2018 at 11:01

BothUM1974 & UM2179 have exactly the same title:

0690X0000060A2lQAE.png

0690X0000060A39QAE.png

0690X0000060A4lQAE.png

So how are we supposed to distinguish the two - without having to open both ?

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    12 replies

    Bogdan Golab
    Bogdan Golab
    Lead
    March 10, 2018
    Posted on March 10, 2018 at 16:43

    These documents refer to different set of nucle-144 boards.

    When you select a 144 pin boards here:

    http://www.st.com/en/evaluation-tools/stm32-mcu-nucleo.html?querycriteria=productId=LN1847

     

    you will see the particular version of the nucle0-144 document for particular board:

    http://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-tools/stm32-mcu-eval-tools/stm32-mcu-nucleo/nucleo-l4r5zi.html

     

    and

    http://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-tools/stm32-mcu-eval-tools/stm32-mcu-nucleo/nucleo-h743zi.html

     
    Tesla DeLorean
    Tesla DeLorean
    Guru
    March 10, 2018
    Posted on March 10, 2018 at 16:54

    I think Andrew's point is that it needs to be more obvious from the outside.

    The divergence has started with the availability of Ethernet, and now the L4(+) parts.

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    Bogdan Golab
    Bogdan Golab
    Lead
    March 10, 2018
    Posted on March 10, 2018 at 17:06

    I simply described how I use these documents.

    I started from selecting a board so it was not misleading to me as only one document is shown on the particular board page.

    Maybe the ST also assumed that we start from selecting a board.

    waclawek.jan
    waclawek.jan
    Super User
    March 12, 2018
    Posted on March 12, 2018 at 14:45

    IMO it's not the naming of documents flawed, but the naming of boards.

    They are different (or populated differently) thus they should have distinct names - and then the names of the documents would follow that.

    JW

    PS more mess

    https://community.st.com/0D50X00009XkaCWSAZ

    Andrew Neil
    Andrew NeilAuthor
    Super User
    March 12, 2018
    Posted on March 12, 2018 at 17:47

    Yes - presumably there is some key difference between the 'Nucleo 144' boards covered in one, and the 

    'Nucleo 144' boards covered in the other - so that should be reflected in both the board names and the corresponding document titles.

    Rather like there is  the 'Nucleo 64' seriews, and the 'Nucleo 64-P' series - each with its own appropriately-titled User Manual.

    (Although ISTR I couldn't find any clear definition of the difference between the 64 and 64-P,  without having to trawl through the 2 User Manuals - but that's another story.)

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