HSO option not available in Motor Control Workbench 6.4.1 with STM32G474RE and EVLDRIVE102BH

[vi007]

Hello,

I am using:

• Motor Control Workbench/X-CUBE-MCSDK 6.4.1
• STM32G474RETx, 170 MHz
• EVLDRIVE102BH
• FOC with three-shunt current sensing

• A2212 13T, seven pole pairs

I cannot find the High-Speed Observer, HSO, option in Motor Control Workbench.

HSO is not visible or selectable in Motor Control Workbench. The same result occurs with a one-pole-pair, 24 krpm HKP Y0H0-A11 motor. 

Could you confirm:

1. Is HSO publicly available in MCSDK 6.4.1?
2. Is EVLDRIVE102BH supported?
3. Which reference board should be selected?
4. Is a particular MCU, motor type, sensing topology, or project type required?
5. Is there a working HSO example project that I can import and run?
6. Where exactly should HSO appear in the Workbench user interface?

[GMA]

Hello ​@vi007,

As stated in the HSO startup guide available from MC Workbench > About > Documentation > Documentation, the High Sensitivity Observer (HSO) requires the phase-voltage-sensing hardware variant.
In MCSDK 6.4.1, the STEVAL-PTOOL4A inverter and the STEVAL-LVLP01 power board support the HSO feature.
In MCSDK 6.4.2, the STEVAL-CTM014A inverter, the EVLSPIN9P1-3PH, and the STDES-LVHP01_24V/_48V power boards support the HSO feature.
As stated in Release Note documentation available in MC Workbench > About > Documentation > Release Notes, HSO feature is only available for STM32G4xx series (STM32G4 and STSPIN32G4 mcus).
HSO appears in the Speed Sensor Mode selector.