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January 24, 2025
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stm32H743zi pin configuration

  • January 24, 2025
  • 1 reply
  • 604 views

My hardware has the I2C pins (SDA and SCL) connected incorrectly, and I cannot change them because the hardware is already built. Is there any way I can fix this issue from the firmware side? Can I change the pins through software? hear attach my schematic photo . atck pin are incorrect and i can  not change it. please help me .

 

 

Rahu2710_0-1737701437236.pngRahu2710_1-1737701494796.png

 

    This topic has been closed for replies.
    Best answer by AScha.3

    >Can I change the pins through software?

    no.

    You can :

    a - take a cutter and wires , cross connect the 2 lines (if this is just one board for proto)

    b - make a new board, with correct connection (if thousands of them should be produced)

    c - write a software-I2C and use the pins, as they are .

    1 reply

    AScha.3Answer
    Super User
    January 24, 2025

    >Can I change the pins through software?

    no.

    You can :

    a - take a cutter and wires , cross connect the 2 lines (if this is just one board for proto)

    b - make a new board, with correct connection (if thousands of them should be produced)

    c - write a software-I2C and use the pins, as they are .