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frogsdaddy
Associate
June 25, 2025
Solved

Nucleo-G491RE and opamp1

  • June 25, 2025
  • 2 replies
  • 425 views

I am using Nucleo-G491RE. I am debugging through the built-in ST-Link using STM32CubeIDE 1.18.1. My design uses opamp1 in standalone mode, which assigns OPAMP1_VOUT to PA2 and OPAMP1_VINM to PA3. What configuration of solder bridges will bring these opamp signals to the Arduino or Morpho connectors?  I have studied the user manual (MB1367) section 6.7, but it is not clear to me.

Best answer by TDK

SB18/SB22 on

SB13/SB17/SB19/SB23 off

TDK_1-1750888648506.png

 

PA2/PA3 are then brought to the headers instead of the default PC4/PC5.

2 replies

TDK
TDKBest answer
Super User
June 25, 2025

SB18/SB22 on

SB13/SB17/SB19/SB23 off

TDK_1-1750888648506.png

 

PA2/PA3 are then brought to the headers instead of the default PC4/PC5.

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    Andrew Neil
    Andrew Neil
    Super User
    June 25, 2025

    It might be clearer to look at the schematics?

     

    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.
    F
    frogsdaddyAuthor
    Associate
    June 26, 2025
    Thank you. Where can I find the schematics? I have looked.
    TDK
    TDK
    Super User
    June 26, 2025

    On the product page under CAD Resources.

    https://www.st.com/en/evaluation-tools/nucleo-g491re.html#cad-resources

    https://www.st.com/resource/en/schematic_pack/mb1367-g491re-c05_schematic.pdf

     

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