In ST MotorControl Workbench 6.4.1, STM32G431CBUX fails on Internal OpAmps + External gain network configuration

[fanghaha]

I am using ST MotorControl Workbench 6.4.1 with the STM32G431CBUX** MCU for a motor control project. When configuring the current sensing module for Three Shunt Raw Currents topology with the option Internal OpAmps + External gain network, the code generation fails with an RCSConnect error.But when I choose the option  Internal OpAmps +  Internal PGA eveything is good.

I am looking to understand:
1. Is the Internal OpAmps + External gain network configuration officially unsupported for STM32G431CBUX in MC SDK 6.4.1?
2. Or is this a hardware resource limitation (e.g., insufficient internal op-amps, pin conflicts) specific to this MCU that blocks this configuration?

 

 

[GMA]

Hello @fanghaha,

I assume that you are using a custom board.
You must describe the required current sensing configuration as explained here.
Use the STMC Board Designer tool, available in the MC_SDK_x.x.x\Utilities\PC_Software directory, to add the configuration.