Skip to main content
freppa
Associate II
Jan 17, 2018 3:07 PM UTC
Solved

NUCLEO - F303RE Alternate function mapping

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.
    waclawek.jan
    waclawek.janBest answer
    Super User
    Jan 17, 2018 3:21 PM UTC
    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
    Jan 17, 2018 3:21 PM UTC
    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
    Jan 17, 2018 4:40 PM UTC
    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
    Jan 17, 2018 3:42 PM UTC
    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

    Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
    freppa
    freppaAuthor
    Associate II
    Jan 17, 2018 4:49 PM UTC
    Posted on January 17, 2018 at 16:49

    yes, thanks, had forgotten to check the datasheet

    Bogdan Golab
    Lead
    Jan 17, 2018 5:54 PM UTC
    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