EVSPIN32G4 3 ph motor driver-- How to get motor speed on the GPIO to match with measured quantity in the motor pilot?

[Sanchari]

I am working on a 3ph motor control with EVSPIN32G4. I want to know how to measure motor speed through GPIO (To match with the measured quantities in motor pilot). Where can i find the details of that?

[STuser2]

The motor speed can be calculated by measuring the hall signal using oscilloscope at the connector. 

[GMA · Accepted solution]

Hello @Sanchari,

If you require an output signal proportional to the motor speed, use the DAC debug feature.

You can select the required data by replacing MC_REG_I_ALPHA_MEAS with MC_REG_STOPLL_ROT_SPEED (defined in the register_interface.h file), for example.

/**
  * @brief  Hardware and software initialization of the DAC object.
  * @param  pHandle pointer on related component instance.
  */
__weak void DAC_Init(DAC_Handle_t *pHandle)
{
#ifdef NULL_PTR_CHECK_DAC_UI
...
    /* Enable DAC Channel1 */
    /* By default send Ialpha motor 1 */
    (void)HF_GetPtrReg((MC_REG_I_ALPHA_MEAS + 0x1U), (void *)&pHandle->ptrDataCh[DAC_CH1]); //cstat !MISRAC2012-Rule-11.5
    LL_DAC_Enable(DAC1, LL_DAC_CHANNEL_1);
...

}

[Sanchari]

Is there any documentation on the debug features and how to use them?

Also, foc algorithm supports what all features, how to know them?

[GMA]

Hello @Sanchari,

Refer to the documentation available through Workbench tool > About > Documentations > Documentation. Motor control features descriptions are available in the User manual tab.
Debug features are not described in the current documentation.

[Sanchari]

Thanks for the documentation details.

I have another question related to motor profiler.

As per the user guide, its saying that motor profiler will open either through workbench icon or from motor profiler option in motor pilot GUI. When I am trying to open the profiler through Pilot, i am getting below error message.

Please guide me what i should do now?

[GMA]

Hello @Sanchari,

You have to select a Port (Motor Profiler tool connection interface part of Motor Profiler documentation or you can use Pilot Discover Board button)