STM32 MCUs Motor control

Hi,While I'm creating custom inverter board for 3 Phase BLDC motor Rail application. I had configured all motor related parameter, while Current sensing section, I have chosen Three Shunt Raw Currents Differential External Gain.I'm getting this error.Pin connection Details:MCU Part No: STM32G4A1VET6Motor 3 Phase BLDC Details Part No: BG65x50 dcoreNominal voltage: 48VDC. Nominal Current: 3.75A.Nominal Speed:- 3560rpm.RegardsVinod C

Hi,i have a new EVLSERVO1 and a STLINK-V3SET ant try to program my MSDK 6.4.0 generated firmware but i am not able to connect to the bord.  I use the latest STMCubeProgrammer 2 20.0 and the latest stsw-link009 USB Driver.I updated the Firmware on the V3 to the latest version. And i tried both variants of the firmware.   The Software recognizes the V3 Hardware and reads the 3.3 Volt from the ELSERVO1 board.i tried to use a Win10 and a win 11 machine.  But I am not able to connect or to flash the Board.The 14 pin cable to the board seams to be ok. I am able to connect and flash other STM Boards with this setup like the STM32H745I-DISCO. Is there anything I have to set to achieve a connection?I also tried the UART1 connection with Tera Term without success.Do I have to send the Bootloader activation patterns 15?    From the Manual:Programming and debuggingThe EVLSERVO1 provides a J1 connector to program firmware on the STSPIN32G4

hi,I have set ICL configurations in the MC workbench, but the generated project doesn't include "inrush_current_limiter.h" , "inrush_current_limiter.c" and any related calls, just some ICL parameters macro. What is wrong?Environment:MC Workbench: 6.4.1CubeMX: 6.15.0CubeIDE: 1.19.0Firmware Package: 1.6.1   

Hi, I designed a custom inverter, based on G473VE, external amplifier and compare, use TIM8 to generate PWM wave, use IR2101S to drive MOSFET. When I try to profile the motor(based on HSO), I get the error: ERROR_DC_AC. I have upload the screenshot(90e0d582f6e2fb5d5043ff325aab241.png), stwb6 file(MCV1_HSO_PROFILE.rar) and schematic files(MC_V1.pdf). Could you help me please? Thanks a lot!I have tried frequency from 20hz to 100hz, and power from 2w to 5w. but no use... 

[PN]:NUCLEO-F746ZG, X-NUCLEO-IHM07M1[VERSION]:MC Workbench: 6.4.1 Build: 250722.154358STM32CubeMX: 6.15.0STM32Cube MCU Package for STM32F7: 1.17.3[TOOL]: MC Workbench[DETAILS]:The following error appears in the GUI when trying to generate the project.Unable to generate ioc file due to: Element type "define" must be followed by either attribute specifications, ">" or "/>"....[EXPECTED BEHAVIOR]:No such error should occur, the project should be generated. [HOW TO REPRODUCE]:Open the project in the attached zip file. Press "generate the project" and use the default settings (STM32CubeIDE etc). The error occurs.Here are the lines from the .log file generated (with my username / project name removed)2025-08-12 11:48:50,988 DEBUG [WB_to_MX.lambda$run_gui_mode$0] Arguments: [-mx_timeout, -1, -pack, assets/MotorControlPack/MotorControl.zip, -exp, templates/wb-defines_where_and_what.txt, -ftl, templates/wb_ioc_template.ftl, -xdm, C:\Users\[redacted]\.st_workbench\projects\p

Hello,I've useX-CUBE-MCSDK v6.4.1B-G473E-ZEST1S + STEVAL-LVLP01 + B-MOTOR-PMSMA1with the HSO.I can make it run with the GUI. But can't start the motor with API.In the legacy, I use MC_ProgramSpeedRampMotor1(100, 1000); for 600 rpm within 1000 ms.For HSO, I can't find the same API, but found that may need to use these:MC_SetAccelerationMotor1()MC_SetSpeedReferenceMotor1()The question is how to calculate the value passing to these API, I found it different from the legacy. Thank you.

2025-08-12 10：04：37,611 调试 [WB_to_MX.lambda$run_gui_mode$0] 参数：[-mx_timeout， -1， -pack， assets/MotorControlPack/MotorControl.zip， -exp， templates/wb-defines_where_and_what.txt， -ftl， templates/wb_ioc_template.ftl， -xdm， E：\STMotorControlWorkbench\64025081201\64025081201.wbdef， -ioc， E：\STMotorControlWorkbench\64025081201\64025081201.ioc]2025-08-12 10：04：37,613 调试 [ArgsValue.lambda$retrieve$2] CLI_ARG[ftl]： templates/wb_ioc_template.ftl2025-08-12 10：04：37,613 DEBUG [ArgsValue.lambda$retrieve$2] CLI_ARG[exp]： templates/wb-defines_where_and_what.txt2025-08-12 10：04：37,613 DEBUG [ArgsValue.lambda$retrieve$2] CLI_ARG[xdm]： E：\STMotorControlWorkbench\64025081201\64025081201.wbdef2025-08-12 10：04：37,614 DEBUG [ArgsValue.lambda$retrieve$2] CLI_ARG[ioc]： E：\STMotorControlWorkbench\64025081201\64025081201.ioc2025-08-12 10：04：37,614 DEBUG [ArgsValue.lambda$retrieve$2] CLI_ARG[pack]： assets/MotorControlPack/MotorControl.zip2025-08-12 10：04：37,614 DEBUG [ArgsValue.lambda$retrieve$2] CLI_ARG[mx_time

I am working with the EVSPIN32G06Q1S3 and the STLINK-V3SET, I have the two programmer/debugger boards mounted on top of each other. Then I have the UART connector connected to the EVSPIN32G06Q1S3 (J5) and the programmer/debugger boards (CN7). I have 230 VAC going into the EVSPIN board. The lights on both the STLINK and the EVSPIN turned on. Device manager recognizes the LINK, but I can't detect the EVSPIN in Motor Pilot or STM32CubeIDE. I've tried the "Discover Board" option in Motor pilot and manually changing the baud rate to each option with no results. I think it might be a firmware issue, but I'm not entirely sure. 

Hi,I have downloaded the firmware into the board and when I hit the start button on Motor Pilot, the motor starts up and runs perfectly with the correct slope, but it seems the motor goes past my set speed and then errors with a Over Current status.Any ideas would be appreciated.regards,Charles

I have manually migrated from MCSDK 6.2.0 to 6.4.0 for my micro STM32G431RBT6 from the example project as i have seen several changes in the source code and HAL drivers and i want to keep the project upto date for any future changes and can adapt easily, i have finished porting but I am confused with Regular conversion manager component, i am getting the ADC values only in the High frequency Task when PWM is ON, using the functions  RCM_ReadOngoingConv(); RCM_ExecNextConv(); But i want the values when PWM is OFF or motor is not running, can i use the above functionsin medium frequency task? If i use the function RCM_ExecRegularConv() used in previous versionsthe code is stuck. Please explain me the intention of above changes.  

[PN]: STSPIN32G4[VERSION]: 6.4.0[TOOL]: Motor Control Workbench[DETAILS]:In this design, the second motor does not work as the interrupts that invoke the FOC_HighFrequencyTask by setting the motor ID into the array FOC_array[] are not enabled (TSK_DualDriveFIFOUpdate() is never called). Motor 1 happens to work as it's ID is 0 and the array is 0 initialised. Also the task TSK_HighFrequencyTask is only invoked at the PWM rate, not twice the PWM rate as it should be called once per motor, ie twice the PWM rate..[EXPECTED BEHAVIOR]: The motor 2 current should be modulated but stays at 0 as the FOC_HighFrequencyTask(M2) is never called.[HOW TO REPRODUCE]: just start motor 2 from motor pilot  

 Why are the motor parameters of the compressor analyzed by Motor Pilot_6.4.0 so different from those described in the compressor specification?The attachments are a screenshot of the analysis results from Pilot and the compressor specification.If I have any misunderstandings, please help me to correct them. for example,Polot get:Ls 7.21mH, Inertia 108.8spec. of compressor:15.6mH , 230 

[PN]: EVLSERVO1[VERSION]: 6.4.0[TOOL]: MC Workbench[DETAILS]:Issue 1After enabling Flux Weakening, I can achieve higher motor speeds; however, under a constant load the speed sometimes swings dramatically. My observation suggests that the control firmware is repeatedly switching between flux-weakening and base-speed modes, creating abrupt transitions.Issue 2With both Flux Weakening and Over-Modulation enabled, attempting to increase the motor speed causes the controller to keep raising the Iq reference instead of decreasing the Id reference. This prevents further acceleration and results in an unrealistically high commanded Iq.[EXPECTED BEHAVIOR]:Ensure that the motor operates stably after flux-weakening is enabled—without unexpected speed oscillations—and that it functions correctly when both flux-weakening and over-modulation are activated simultaneously.[HOW TO REPRODUCE]:Generate the motor model with Motor Control Workbench and Motor Pilot. Next, use Workbench to create the control

Hello Everybody,I have a high-power BLDC motor with a rated power of 200W and a nominal voltage of 24V, resulting in a current draw of approximately 10A. I intend to use Motor Profiler to detect detailed motor parameters (e.g., B-EMF constant). Could you advise on which ST control board is suitable? I know there are many control boards like NUCLEO-G431RB. Given the high current, is the control board with the Three-Shunt current sensing inappropriate? If so, what alternative control board should I select? Thank you!

Hello ST Community,I am currently working on a motor control project using an STM32 microcontroller and STM32CubeIDE. I have noticed that the code size (firmware image size) is larger than expected, and I would like to reduce it as much as possible to fit within memory constraints and improve performance.Are there recommended methods or best practices to optimize the firmware code and reduce its size? At present, the firmware size is: 

hello,I am a student, and for my university project, we are using this stepper motor controller X-NUCLEO-IHM05A1, and I have the STM32NucleoF401RE Microcontroller board to send the command to the motor control. I see there is one middleware package for this motor controller called X-CUBE-SPN5. So, I try to search for this middleware package on STM32CubeIDE, but there is no option regarding it. Now I go to the ST website and I am looking for the .zip file, but there is nothing. I also try to find the proper use case, how can I install, and how can I use but is there any documentation available for that? So can you please provide me this package so I can control the motor easily for my university project, and if possible, so guidance on how i install this middleware package into STM32CubeIDE and how to use this middleware package function for controling the motor. I am waiting for your reply. Thanks in advanceDhruv@Peter BENSCH 

Hello ST Community,I am currently using the EVSPIN32F0251S1 inverter board to control a BLDC motor for an elevator door control application.When I run my BLDC motor in torque mode and set torque with this API  MC_ProgramTorqueRampMotor1_F() so my motor is rapidly rotating and reach maximum speed.For my application, I need to maintain a fixed speed (e.g., 1000 RPM) while delivering the maximum possible torque. I would like to know if it is possible to achieve this behavior using the current firmware and control APIs.If this is feasible, I would appreciate your guidance on how to properly configure the motor control to balance both speed and torque — specifically, how to apply torque while constraining the motor to operate at a specified speed limit.Thank you in advance for your support.

Dear ST motor control experts:      I am currently debugging a PMSM using MCSDK6.3.2, with the following components: MCU: STM32G473QET6, control board: B-G473E-ZEST1S, power board: STEVEL-LVLP01. However, the motor fails to start. Upon inspection, it was found that the issue is caused by the R3_GetMeasurements() function. After MCI_START == Mci[M1].DirectCommand, the PWM is initiated, and when sampling and saving data for current and voltage, many function addresses change. Specifically, in the function R3_GetMeasurements(), there is a line of code: PWMC_R3_Handle_t * pHandle = (PWMC_R3_Handle_t *)pHdl. Is there a problem here? Because performing a cast on a pointer may cause memory boundary errors. Is this the reason?I hope to receive a reply.Thanks!

HelloCan you teach me how to fix the build errors? Best Regards,Jerry

  [PN]: EVALSTDRIVE101, NUCLEO-G474RE[VERSION]: MCSDK 6.3.2[TOOL]: Motor Control Workbench, Motor Pilot[DETAILS] ：We are using the EVALSTDRIVE101 to drive a 250W, 1200RPM motor with Hall sensors. The Hall signals (H1, H2, H3) are filtered through the onboard RC low-pass filter before reaching the MCU on the NUCLEO-G474RE board.The control method uses 16kHz PWM to drive the UVW MOSFETs on the EVALSTDRIVE101.When measuring the signals with an oscilloscope:H1 shows minor jitter at high level.H2 and H3 show significant jitter around 16Hz when high.This noise seems to interfere with the motor commutation, resulting in audible "clicking" or "jerky" sounds and large speed fluctuations in the speed control loop during high-speed operation.Interestingly, when we bypass the onboard low-pass filter on the EVALSTDRIVE101 and use an external RC filter instead, the noise is significantly reduced. um2781-getting-started-with-the-evalstdrive101-stmicroelectronics.pdf   圖 4. EVALSTD

The board appears in Device Manager on my Windows 10 PC, and port/baud rate/parity settings match what is in Motor Pilot and STM32CubeProgrammer. Neither Motor Pilot nor STM32CubeProgrammer will connect to the board. I am using the latest drivers. What am I missing?

Dear Support team,I am currently working on a NucleoF302R8 and IHM07M1 driver to run a 24V PMSM motor (rated at 3600 RPM, no load).I'm using STM32 Motor Control Workbench version 6.4.0. Whenever I attempt torque control, I consistently encounter a speed feedback failure. I've tried lowering the C2 Leuenberger constant, but the issue persists. Interestingly, this problem doesn't occur in speed control mode—everything functions correctly when running in speed control.I would appreciate your assistance in understanding and resolving this issue.

As I am using this particular motor, "GL30 KV290", to test with the eval. board "B-G431B-ESC1". Although I was able to profile the motor using the profiler and eventually control it using motor pilot, I would like to properly assess how we can achieve PID control effectively for the speed of the motor, and how to tune RevUP parameters.(1) I profile the motor using the following information:     Magnetic Struct: SM-PMSM, Pole-Pairs: 7, Max. Speed: 3060rpm, Supply Voltage: 12V, Peak Current: 7.4ApkGL30 KV290 Gimbal Motor-Light 41g, Compact Φ34.5×15.7mmWith this link as the reference, pls check if i profiled the motor correctly?(2) Once I start to control the motor using motor pilot tool, I reach to this page as shown below:I only tested my motor with default auto calculated PID settings, and with speed adjustment the motor rotated at the set speed although not very constant. I don't really know to fine tune these settings to achieve proper PID speed control for the motor.

Question about Electrical Angle Synchronization in MCSDK v6.4.0Hi everyone,I'm using MCSDK v6.4.0 with an STM32G4, a 42BLF01 motor, and a high-quality incremental encoder with Z-index.My goal is to accurately correct the electrical angle on each Z-pulse to avoid long-term drift after 100 rounds.In previous SDK versions, there was a function called ENC_SetElAngle() which allowed setting the electrical angle directly.In MCSDK v6.4.0, however, this function no longer exists – and the corresponding enc_driver.h file is also missing.Main Question:Is there any official or recommended way in MCSDK v6.4.0 to directly set or correct the electrical angle at the Z-pulse – without using ENC_SetElAngle()?If not:What’s the recommended strategy for drift-free synchronization while the motor is running?Is MC_SetCtrlPositionAngle1() the intended method – even though it may cause stepping or jitter?Thanks for any insights

Hello and good day.When using my custom board, I am facing "The following has evaluated to null or missing" errors during code generation. I have tried a few variation of custom boards but I can't seem to solve the issue. FYI, this doesn't happen when generating code using ST evaluation boards.Is this an issue from my side?I am using the latest MCSDK v6.41 and STM32CubeMX 6.15.I have attached my project file for reference.Edit: I am using STMC Board Designer Version: 1.2.1 and I just uploaded the board design.