About grisharevzin

grisharevzin · 2025-01-10

MCSDK 6.3.1, FOC with STOPLL, EVSPIN32G4, this motor.We're using a custom board based on EVSPIN32G4 as a drone ESC in a traditional sensorless configuration. Naturally, in our application the motor starts up to a low RPM under idle load and then afte...

grisharevzin · 2024-09-25

Hello everyone,I have a motor control project that I'm testing out using Motor Pilot. If I generate it with FreeRTOS support, Motor Pilot can't connect to the board (the board sends a probably malformed ASPEP_RESP and then it's always a timeout).I ha...

grisharevzin · 2024-08-17

Hi.I'm driving a PMSM with FOC (Workbench file attached for reference) with MCSDK 6.3.0 in torque mode.Main parameters:1400 Hz electrical frequency max -- therefore 16 kHz PWM100 Hz mechanical frequency max~0.03 mH line-to-line inductance~9 V/Hz Kv 0...

grisharevzin · 2024-08-14

Hi everyone!I'm evaluating STSPIN32G4 for driving a small 6 kRPM 28-pole PMSM (up to about 30A load current - it's driving a propeller, 0.06 mH inductance, about 160 kV). Generally the performance is quite good, but I have noticed frequent STOPLL fau...

grisharevzin · 2024-11-14

Nope, sorry. It's either FreeRTOS or MCP. My intuition tells me it should be easy enough to debug but I didn't go this way.

grisharevzin · 2024-09-25

Hi @LHOUE,I've regenerated and recompiled everything with 6.3.1, same issue (void ASPEP_HWReset(ASPEP_Handle_t *pHandle) is always getting called if I'm trying to connect with Motor Pilot).

grisharevzin · 2024-09-04

Following up on this -- it was a faulty motor with internal short circuits.Some noise on Iq/Id is expected, but the amplitude of it shouldn't be strongly related to the value of reference Iq/Id as was the case here. E. g. what I learned in relation t...

grisharevzin · 2024-09-04

Following up on this topic -- maybe this may be of help to someone later -- it turned out that these faults, in our case, have been caused by ADC input saturation, not by overmodulation. With our motor, we go significantly above the rated current for...

grisharevzin · 2024-08-17

Hi @GMA,Thanks for pointing in the right direction.Indeed, Trise and Tnoise are detailed in "Current sampling in three-shunt topology using two A/D converters" in the documentation, in cases 2 and 3.I was able to increase the max speed somewhat by ad...

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User Activity

STO/PLL - startup desync & false observer convergence?

MCSDK 6.3.0 + FreeRTOS Motor Pilot doen't connect (MCP: ASPEP BEACON TIMEOUT)

EVSPIN32G4 - Frequent Overcurrents

EVSPIN32G4 - current measurement burst noise at high RPM

Re: MCSDK 6.3.0 + FreeRTOS Motor Pilot doen't connect (MCP: ASPEP BEACON TIMEOUT)

Re: MCSDK 6.3.0 + FreeRTOS Motor Pilot doen't connect (MCP: ASPEP BEACON TIMEOUT)

Re: EVSPIN32G4 - Frequent Overcurrents

Re: EVSPIN32G4 - current measurement burst noise at high RPM

Re: EVSPIN32G4 - current measurement burst noise at high RPM