MCSDK 6.4.0 6 steps still don't have current sensing

[jase]

Hi, from the update it looks like current sensing mode can now be enabled on 6 steps, but from the MC workbench it still looks disabled. attached to confirm it's the mc workbench 6.4.0 - see attached images

i selected EVSPIN32G4NH which has stspin32g4 + evspin32g4

[Fabrice LOUBEYRE]

Hi jase, i think you made reference to the release note of the MCSDK 6.4.0 where we added the following feature for 6step algorithm

• Added Software Current Sensing Monitoring mode supported for series STM32C0xx/F0xx/F3xx/G0xx/G4xx.

This new feature is enabled only if the power or inverter board .json file supports the following "hwVariants" : "type": "SingleShunt_AmplifiedCurrents_noOffset" of the feature "CurrentSensing".

 

This is the list of board where this "hwVariants" is defined and where Current Sensing Monitoring could be enabled if connections allow it:

EVLDRIVE101-HPD, EVLPWD-FAN-PUMP, EVLSPIN32G0B1, EVLSPIN32G0B2, EVSPIN32F0251S1, EVSPIN32F02Q1S1, EVSPIN32F0601S1, EVSPIN32F0602S1, EVSPIN32F06Q1S1, EVSPIN32F06Q2S1, EVSPIN32G02Q1S1, EVSPIN32G06Q1S1, EVSPIN32G06Q2S1, STEVAL-SPIN3202, STEVAL-SPIN3204, EVALSTDRIVE101, EVALSTDRIVE601, EVLDRIVE102H, EVLDRIVE102P, X-NUCLEO-IHM07M1., X-NUCLEO-IHM08M1, X-NUCLEO-IHM16M1, X-NUCLEO-IHM17M1

Please, note also that this Current Sensing Monitoring feature is not supported by FW side for STMF3xx family.

 

Best regards.

Fabrice

[Fabrice LOUBEYRE]

Sorry, you have surely noticed that the good sentence is:

Please, note also that this Current Sensing Monitoring feature is not supported by FW side for STMF4xx family.

Best regards.

Fabrice

[jase]

@Fabrice LOUBEYRE may i know why EVSPIN32G4NH (it is not STMF4xx family), FOC is enabled with current sensing on this board but not 6 steps, what is the hardware limitation?

[Fabrice LOUBEYRE]

Hi jase, my point is that the original description file EVSPIN32G4.json embedded into the MCSDK 6.4.0 WB does not contain the "SingleShunt_AmplifiedCurrents_noOffset" Hw variant of the "CurrentSensing" feature that manages this 6stap Current Sensing Monitoring feature.

However, the MCSDK 6.4.0 STMC Board Designer tool will allow you to create this "SingleShunt_AmplifiedCurrents_noOffset" HW variant for this board.

Some help can be found to set up this HW variant into this following document (chapter 3.1.2.2. Single-shunt, amplified currents without offset network hardware variant).

STM32MotorControl:Motor Control Boards Description - stm32mcu

Best Regards.

Fabrice