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Is it possible to run dual motors on H7(M4 core)?

PQ
Associate II

There are two motors, a large motor (Motor1)driven by discrete gate drivers and mosfets, and a small motor (Motor2)driven by the integrated driver L6230.

For performance reasons, Motor1 needs a 3 sample resistor scheme (R3_2, ADC1+ADC2), so what current detection schemes can Motor2 have? Does it have to use ADC3 which is not used by motor1, but there seems to be no “r3_1_h7xx_pwm_curr_fdbk.h” in the MCSDK, does it mean that single ADC current sampling is not supported?

 

I'm trying to customize a inverter with H755&Dual motors by STMC board Designer. With basic features loaded, the workbenck failed to generate files like: mc_task.c\stm32h7xx_mc_it.c\mc_parameters.c...

Any suggestion?

 

1 ACCEPTED SOLUTION

Accepted Solutions
GMA
ST Employee

Hello @PQ,

As mentioned in Release Note documentation available through "Workbench tool>About>Documentations>Release Notes": Dual Drive is "Supported on STM32G4XX, STM32F3XX and STM32F4XX MCUs only".

A documentation update will be done to add this comment in "Known Limitations - Dual Drive" chapter.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA

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2 REPLIES 2
GMA
ST Employee

Hello @PQ,

As mentioned in Release Note documentation available through "Workbench tool>About>Documentations>Release Notes": Dual Drive is "Supported on STM32G4XX, STM32F3XX and STM32F4XX MCUs only".

A documentation update will be done to add this comment in "Known Limitations - Dual Drive" chapter.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA
PQ
Associate II

OK, but if I still want to run dual motors on H7, what's the most convenient work flow and work around?  One of my ideas is to use the G474 and the MCSDK to do the whole auto-generation of the dual motor project and then modify it for the H7. It seems like the current sampling scheme is a bit incompatible, would it be better to sample the ICS way?