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sst1010
Visitor II
April 30, 2026
Solved

HSO on G431

  • April 30, 2026
  • 1 reply
  • 109 views

Hi,

I'm trying to setup HSO on the G431, I used the B-G431B-ESC1 board as a starting guide. I'm trying to use differential sensing with internal OP-AMPs and internal PGA. I have split the currents and phase voltages across ADC1 and ADC2 but I still cannot get the HSO option to show up with MC workbench. I'm using the latest version. I have attached my board JSON file, any guidance will be appreciated.

Thanks,

Ray

Best answer by Gael A

Hello sst1010,

When it comes to the Internal OPAMP topology, the HSO currently only supports the ThreeShunt_RawCurrents_Differential_ExternalGain_FilteredADCInput hardware variant. Apart from that, your ADC layout is correct.

1 reply

Gael A
Gael AAnswer
ST Employee
April 30, 2026

Hello sst1010,

When it comes to the Internal OPAMP topology, the HSO currently only supports the ThreeShunt_RawCurrents_Differential_ExternalGain_FilteredADCInput hardware variant. Apart from that, your ADC layout is correct.

If you agree with my answer, please consider accepting it by clicking on 'Accept as solution'.Hope this will help,Gaël A.
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