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freppa
Associate II
January 17, 2018
Solved

NUCLEO - F303RE Alternate function mapping

  • January 17, 2018
  • 5 replies
  • 1925 views
Posted on January 17, 2018 at 16:07

Where can I find the alternate function mapping for GPIO pins? 

Normally these can be found in User Manual for a given card, but I can't find it for the NUCLEO-F303RE.  

    This topic has been closed for replies.
    Best answer by waclawek.jan
    Posted on January 17, 2018 at 16:21

    You need to do it in two steps: first, in Nucleo's UM, you find the connector-to-pin mapping:

    0690X00000609P4QAI.png

    and then in the 'F303RE datasheet look up the pin-to-alternate function table.

    JW

    5 replies

    waclawek.jan
    waclawek.janBest answer
    Super User
    January 17, 2018
    Posted on January 17, 2018 at 16:21

    You need to do it in two steps: first, in Nucleo's UM, you find the connector-to-pin mapping:

    0690X00000609P4QAI.png

    and then in the 'F303RE datasheet look up the pin-to-alternate function table.

    JW

    Andrew Neil
    Super User
    January 17, 2018
    Posted on January 17, 2018 at 16:40

    This is what I meant (in the '2018 Wish List' post) about having this data in a 'manipulatable' format.

    I would try to find & link to it - but I don't think it's worth it with the current state of the forum.

    :(

     

    My usual approach is to first get the device UM 

    pin-to-alternate function table into Excel, then the board 

    connector-to-pin mapping into Excel, the use Excel's VLOOKUP (table look-up) feature to join the two together.

    (other spreadsheet programs are available)

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    Tesla DeLorean
    Guru
    January 17, 2018
    Posted on January 17, 2018 at 16:42

    >>

    Normally these can be found in User Manual for a given card, but I can't find it for the NUCLEO-F303RE.

    Data Sheet for the CHIP not the manual for the BOARD

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    freppa
    freppaAuthor
    Associate II
    January 17, 2018
    Posted on January 17, 2018 at 16:49

    yes, thanks, had forgotten to check the datasheet

    Bogdan Golab
    Lead
    January 17, 2018
    Posted on January 17, 2018 at 17:54

    Start the CubeMX, select for example PA10 as usart and press Ctr and left mouse botton - you will see alternate pin  - PB7 in this case