STM32 MCUs Motor control

Hello,I am trying to get started with the EVSPIN32G4-DUAL but where can I find the Firmware or an example project for the Motor Control Workbench?Thank you!Quirin

I am working on a project to drive a door using a PMSM motor in position control mode. I am trying to add an emergency brake function. In an emergency, when the operator pushes a button, motor should brake and then return to its starting position without harming anyone.I know there is PWMC_TurnOnLowSides() function (https://community.st.com/t5/stm32-mcus-motor-control/how-can-i-stop-the-motor-urgently/m-p/597309#M8287 ). But it is just stopping the motor, not braking. I have tried this function.As far as I know, there is no such API in position control mode.If I am wrong, is there an API to brake the motor in an emergency? Can anyone help me? Do you have any advice for me?Any information you provide will be welcomed.   Project:ST MCW Ver             : 6.3.2STM32CubeIDE Ver : 1.18.1Driving algorithm      : FOCControl board            : Nucleo-G474REPower board        &

Hi, I am trying to run a 400W Servo Motor using FOC on my EVSPIN32F0602S1. But I am getting the following Overcurrent Error, no matter what I change in the current profile. The Motor gives a sudden jerk and stops with the error. Please provide a solution for the same.

I am developing a PMSM motor controller using STM32F103C8T6. I want to check the variables on live expression while I am running the motor. But as soon as I increase the current draw of motor, the values on the live expression starts to show random values or blank fields. and in the console, it prints "Target is not responding, retrying...". Why might this be happening?I am having this issue on a custom PCB that I have built. I have made a similar PCB with bigger form factor and this issue is slightly lower in that PCB. What could be the causes of this issue? and what precautions should be taken to prevent this?

Dear STM Community,I am currently developing an elevator door control application using the EVSPIN32F0251S1 board with a PMSM/BLDC motor, and I am looking to implement an automatic calibration routine to adapt to varying door sizes at different installation sites.Since elevator doors can differ in width, the number of motor rotations required to fully open or close the door will not be consistent across all installations. Currently, this calibration is done manually by counting motor rotations, which is not scalable or efficient. I would like to ask if there is a recommended method or best practice for implementing auto-calibration of door travel using the Motor Control SDK or STM32 ecosystem. Ideally, the system should automatically detect the open and close limits during installation, store that data in non-volatile memory, and use it for normal operation.Does the STM32 Motor Control Workbench or firmware provide any built-in support for such functionality, or would this logic need t

Hi, I'm developing a FOC board based on STM32G431RBT6 and I wanted to test the board in open loop before attempting to FOC.While testing for current sensing, I'm getting a lot of noise which messes up the measurement.I tried disconnecting the motor to be sure that the source of the noise is not the SMPS on the board, there is little to no noise on the ADCs without the motor.It looks like this when running the motor in open loop with very low RPM. With increased RPM, the noise becomes more prominent since the motor is not under any load and drawing less current at the same power, and it becomes impossible even to see the shape of the sine wave.And there's that weird spikes at the bottom of the sine which I don't have any clue about.I'm using internal opamps with PGA set to 16 in as differential low side current sensing amps. ADC is triggered at every overflow event through OC4REF.What's the possible causes for this problem and how to solve?

Hello everyone,I am working on a BLDC motor and have implemented Field-Oriented Control (FOC) on an STM32f103c86  microcontroller. For rotor angle estimation, I am using a Luenberger State Observer and calculating the rotor angle using a Lookup Table (LUT).Issue:I am not getting the expected rotor angle waveform.The estimated angle does not match the expected smooth transition.The waveform appears distorted or has unexpected behavior.Details of My Implementation:MCU: STM32F103 (or mention your exact MCU)FOC Control Method: Using SVPWMAngle Calculation: Using LUTObserver Type: Luenberger State ObserverTroubleshooting Steps I Tried:Verified that the LUT is correctly implemented and outputs expected values.Checked the observer gains and adjusted them, but the waveform still seems off.Ensured proper scaling and filtering of estimated values.Has anyone faced a similar issue? Any suggestions on what could be causing the incorrect rotor angle waveform?Thanks in advance!Waveform must be s

The respective stwb6 file is attached below

Hi all,I'm working with an STM32-based motor control setup ( The EVSPIN32F0251S1 board is a 3-phase complete inverter based on the STSPIN32F0251 controller), and I have a physical PMSM motor that I want to use with FOC (Field Oriented Control).I need help figuring out the following motor parameters:Parameters I want to find:Stator resistance (Rs in Ohms) Stator inductance (Ls in mH) Back-EMF constant (in Vrms/kRPM or Vpeak/kRPM)Maximum mechanical RPM What I have: Physical motor only and basic data (no datasheet)PMSM motor Volt -24Current -4.3 ampPower -105WRPM - 500 Hz- 83.3 HzPole Pair -10Torque -2.0 NmCan measure with multimeter, oscilloscope, etc.Using STM32 Nucleo-F446RE board Planning to use STM32 Motor Control Workbench & SDKMy questions: What is the best method to measure Rs and Ls accurately with basic lab equipment?How can I measure or estimate the BEMF constant?Is there a reliable way to determine the maximum safe RPM if the motor model is unknown?Can the STM32 MC Workben

EnvironmentMC Workbench: v6.3.2WB_to_Mx plug‑in: v6.2.3.template‑24‑04‑17STM32CubeMX: v6.14.1Target MCU: STM32L476RGT3 (LQFP64) – STM32L4 familyToolchain: STM32CubeIDE, HAL drivers, STM32 FW v1.18.1Issue summaryWhen a project uses a custom inverter with the Six‑Step algorithm and TIM1 selected for PWM generation, the files produced by WB_to_Mx are incomplete:Expected Result in generated filesM1_PWM_TIMER_SELECTION = PWM_TIM1 present in .stwb6TIM1 completely absent from .ioc.wbTIM1 channels (CH1/CH2/CH3 + complementary) mapped to PA8/PA9/PA10 and PB13/PB14/PB15No GPIO configuration for these pinsMcu.IP=TIM1 entry in .iocMissingMX_TIM1_Init() and associated HAL codeMissingOther peripherals (USART2, TIM3 for Hall, DMA, etc.)Generated correctlyFreeMarker also logs “evaluated to null or missing” errors while creating several header/source files, leaving key parameter macros undefined.Requested actionConfirm whether this TIM1 omission is a known bug in MC W

Hi.I am currently working on a custom board using the stspin32g4. This was derived from the evspin32g4 development board alone with the stm32 motor workbench. Uploading the motor workbench code to the evspin32g4, works and can tune the motor parameters through serial.Moving away from the development evspin32g4 to a custom board has become a tad tricky. I am able to possible flash the custom board's stspin32g4 microcontroller using the ST-link/V2 programmer/ debug tool. However, I couldn't get the serial uart port working. I can confirm the source code is exactly the same (Being uploaded) to the evspin32g4 (So I don't think it's a programming issue).At first, I tried confirming the UART is working correctly. I used the SFR in the stm32 IDE debug tab and modified the registers (When it is in debug mode) (Register USART1 --> RDR (Checking byte sent from the computer serial port application matches the hex value present) and (Register USART1 --> TDR (Writing a hex value and confirmin

Hello. I am doing stepper motor step control. I am using the "HAL_TIM_PWM_PulseFinishedCallback" function for this operation. Is there a more functional usage method than this? I can't get the max torque of the motor. Can you help me? Motor Driver "TB6600" / Step Motor "Nema17"

Hello,I am currently working with a custom board using an STGIB15CH60TS-LZ driver and an STM32H503RBT6 microcontroller.The motor is a 48V, 500W, 300 RPM brushless motor with three Hall effect sensors (120° mechanical angle, 300° electrical angle). It is used in an electric bike.I am using the FOC algorithm with:Single shunt resistor16k PWM generationHall sensors as the main sensorEverything works correctly, but I sometimes have an issue at startup and under load. Once the motor is running, the issue does not occur.The image shows the three Hall effect sensors during a failed startup. In this case, the issue comes from the C2 signal.I believe the problem is caused by small movements in the opposite direction of the expected motor rotation for the FOC algorithm. The motor controller returns a "speed feedback" error.I am looking for a solution to prevent this error in the FOC algorithm since the reverse movements are unavoidable.Thank you.

Hello, I'm working with the ST EVAL3201 motor controller board. I'd like to use an STM32 Discovery board to send commands to start and stop the motor. Is this feasible? If so, could you provide guidance on the necessary connections and communication protocols?

hi, I have been trying to run PMSM motors with B-G431B-ESC1, I follow the steps given in the user manual, 1. I profile the motor and save the parameters 2. use the motor control workbench to generate a project, and generate source code, 3. run it in Cube IDE to flash it on the development board. However, I am unable to run my motor with that source code. The motor doesn't even start. I also face inconsistency when running the motor with the same source code on different occasions. What could be the issue, and what should I do to resolve this issue? since the profiler is working, where can I get a profiler code based on which the profiling .hex file is created to debug the issue? Thank you, Madhav

Hello everyone,We constantly receive orders from our customers that they got some motors which their nominal speed, nominal voltage, and etc. are approximately similar to each other, but their Rs, Ls, Ke, and pole pairs may differ.They want us to design an inverter board in such a way that it can get these motors running, providing the capability to see if their motors are damaged or not, just by using a single board without the need to customize the firmware or the hardware for each motor. So, we need to somehow get pole pairs of the motor from the user, change it in the firmware and run the profiling process.For such purposes,What can we do by using ST motor control workbench?What are the related APIs to achieve this goal?Is this even possible?Thank you!

Hello,I got a error message during control project genaration"It is not possible to create a motor control project with the FOC algorithm using the selected hardware. No proper path for motor control signals was found for the following mandatory features: - Phase Voltage Generation - Current SensingFor more details, please, look at the following log file in your home directory: .st_workbench/connectAlgo.log", but it was unable to find connectAlgo.log in the folder \AppData\Local\STMicroelectronics\MC_SDK_6.3.2\Utilities\PC_Software\STMCWB\.

Hi We are using a custom STM32U5G7-based board to drive a BLDC motor using STSPIN230 with Hall sensor feedback. The Hall sensor inputs are handled through interrupts, and motor commutation is performed based on these events. The motor operates smoothly when the HCLK is configured to 80 MHz (HSI with PLL). However, when the HCLK is reduced to 8 MHz (HSI), the motor no longer rotates smoothly, despite the PWM timer frequency being maintained at 50 kHz in both cases. We would appreciate any insights into potential causes for this issue.  

Dear Community,////  For new members joining the discussion, please refer to our second reply, where we’ve shared more details about the modifications and testing done on our board.Thank you in advance for your interest and support!I’m currently developing with the STSPIN32G4, but I’m encountering some difficulties related to flashing and powering the chip.Below is a summary of my setup and the issues I’m facing: I'm using ST-Link V2 with the following connections:SWDIO, SWCLK, GND, and VCCI would like to use an external 3.3V power source to power the STSPIN32G4Case 1: Powered by ST-Link V2 (VCC connected)STM Programmer can connectFlashing the image succeeds, but:None of the GPIOs are activeUART has no outputMeasured VCC is only ~2.2VCase 2: Powered by external 3.3VUsing Arduino 3.3V output or regulated bench power supplySTM Programmer cannot connect and shows : "Error: while trying to connect"ST-Link is connected with only SWDIO, SWCLK, and GND (no VCC)Any insights or s

Is there a way I can control a motor using serial communication, with custom commands that I define myself

Hi, I'm using a B-G431B-ESC1 to control a drone motor. My motor draw around 300W at maximum power. I have done a FOC firmware with Motor Workbench and it works very good with the load (propeller). I use sensor less speed feedback.But when I remove the propeller and try to control the motor, it start to turn and after around one second, it do a very bad noise and stop with a speed feedback error. The read speed is around 7000rpm, but in fack it was around 250rpm.When I have the propeller the sensor less speed sensing is very precise.Do you have some ideas to help me ? Thanks :smiling_face_with_smiling_eyes: 

Split from https://community.st.com/t5/stm32-mcus-motor-control/use-of-b-g431b-esc1-to-implement-my-own-algorithm/td-p/794170 as that is answered, and this is a new question.I needed to confirm this before making use of it.In the same thread, I have seen that these boards, although an STM32G431 is programmed, also have an STM32F103 on the daughtboard:https://www.st.com/en/evaluation-tools/b-g431b-esc1.html#featured_resources-0What is its function on the board?

I have read about using these boards in conjunction with firmwares configured in Xcube-MC.However, is it possible to implement these field control strategies or similar in proprietary code?

I'm working on a Motor Control Project built with MCSDK(6.3.1).After initial creation of the CubeMX ioc File by the MC-Workbench, a lot of additional configuration were manually made using CubeMX (~30 additional pins and their config, additional timers, etc.).Then the Source Code was generated.But when i now need to change parameters/configuration in the MC-Workbench and re-generate the ioc File, all the previously manually added config is lost and must be redone again which is a lot of work and prone to errors which are hard to detect. Is this the intended workflow? Maybe i'm doing something wrong?The workflow shown here: https://www.st.com/content/st_com/en/ecosystems/stm32-motor-control-ecosystem.htmlshows a feedback cycle starting again at step 4 but i need to cycle to step 3 without loosing information in the ioc. In the meantime i use a clean ioc without modifications and look at the diff made by changes by the MC-Workbench.Then i manually apply the diff in the ioc to t

I am trying to control a 24V PMSM type motor using ST Motor Control Workbench version 6.3.1 with the FOC. I use the position control method as the control method. Tuning PID parameter is given in AN5464.Although i tried to tune the PID parameters manually in accordance with demonstration code given in AN5464, par. 5.8, motor starting to oscillate when i try to rotate motor in multi-turn (for example 4-turn, 8 * PI radian). So i am trying to use a software tool like STM32CubeMonitor in order to tune PID parameters.I have the following questions:Is there any application note/document which describes PID parameter tuning using STM32CubeMonitor? If yes, can you share with me?If the answer of first question is no, which variables/structure elements should be paid most attention in STM32CubeMonitor for a good PID tuning? For example, ENCODER_M1._super.hMecAngle. Dou you have any recommendation for me?If STM32CubeMonitor is not suitable for PID tuning, do you have any advice for me? For examp