STM32 MCUs Motor control

"Hello.We are currently developing a medical device in Korea using the STSPIN32G4.During an EMI pre-scan, we confirmed that noise is being generated in the 188MHz band from within the chip.We have seen posts on forums from others who are experiencing similar issues.We would appreciate your advice on how to resolve this.Thank you." 

Hello,I'm using an EVSPIN32G4 with a Bodine BLDC motor (Hall-less).  I used the motor profiler to get all the need motor settings and have compiled firmware.  It spools up nicely but I can't get it to 6000RPM.  The motor profiler says that the motor is capable of 6000 RPM.  All of my settings appear to be correct.I'm using a 48VDC supply capable of 12A.  The motor cable says 6000 RPM, 7.8A, 48VDC.This is a 2 pole pair motor.  It seems that every change I make to try and resolve this tends to break something.Does anyone have suggestions?

Hi all,I'm in the process of configuring my STM32H723ZG to work with the IHM08M1 motor driver shield.Currently I am trying to configure and validate the signals from the ADCs however I am having some issues with this. One ADC I'm trying to validate is the DC voltage bus reading. This circuit simply places the input through a voltage divider with some protection, going straight to the ADC after. I've tried configuring these ADCs in a few different ways, single channel, DMA, etc. however none of them produce the expected results. What I'm currently seeing is that with the stm and shield disconnected, I can read the correct stepped down voltage on the shield side by probing with a multimeter (~0.5V depending on input voltage). When the stm is disconnected to the shield the ADC reads a floating ~1.64 volts. With the two connected the ADC seems to still be reading 'garbage' values, probing with a multimeter reads ~1.75 volts. The last bit of information I have is that by grabbing

Can any one help me with this. I am facing the below error.

Hai All,  New to MCSDK Tool – 446 + IHM08M1 Interface.Generated the code using MCSDK 6.4.1 and analysing it.Attached is the video of my motor control configuration – Basic Hall Effect Sensor based 6 step commutation using Switch and ADC Speed Control.Unable to see any control routine in my main closed loop – where the switch press and the speed control ADC is called.Kindly help me out, how to proceed.

Hi everybody,This is the configuration of my setup:MC Motor Control Workbench v6.4.1LL library24V, 2 pole pairs, 5A, BLDC motor.Observer + PLL (Sensorless)Max speed 16000 rpmCustom board with STM32G491Control mode: speedCurrent measurement topology: 3 shuntI am testing motor control and tuning PID constants. When I apply some braking torque to the output shaft, sometimes the motor starts rotating in the opposite direction at full speed, and it stays there.I have experienced the same with v6.3.2It doesn't seem to be related to control constants.It looks like it has happened before in this forum (link) and it doesn't look like it was fixed.The plot with the reference and actual speed is attached.Has anybody experienced this before?Edit: 17/10/2025: add the missing attachment, board description, control mode and current measurement topology

Hey Guys,I’m facing an issue with motor operation using the STEVAL-ESC002V1 solution. Despite setting MC_set_speed(MAX_SPEED), the motor doesn’t reach full speed and runs unevenly with vibrations. It only rotates at a low speed instead of the expected maximum. I’ve attached my workspace configuration for reference. Kindly help me identify and resolve this issue to achieve smooth and stable motor operation. int main(void){ /* MCU Configuration----------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init(); /* Configure the system clock */SystemClock_Config(); /* Initialize all configured peripherals */MX_GPIO_Init();#if (defined(POTENTIOMETER)||defined(CURRENT_SENSE_ADC)||defined(VBUS_SENSE_ADC)||defined(TEMP_SENSE_ADC))MX_ADC_Init();#endif#if defined(ST_PWM_INTERFACE)MX_IF_TIMx_Init();#endifMX_LF_TIMx_Init();MX_HF_TIMx_Init();MX_ZC_TIMx_Init();#if defined(UART_COMM)MX_UART_Init();#endif MC_SixStep_I

Hi there,I was trying to generate a STSPING4 project with MCSDK 5.Y.4.All the config and pin checks are successful.However, there is an error in the attached picture; also, the full LOG is attached.Seems some paths are incorrect, but I don't know how to fix them.Maybe I need to install something more? Or need to copy some folder somewhere?Thank you very much.

I have a few screenshots from a slide deck about the STSPIN32F0,but I can’t find the original presentation.It looks like it’s about PCB layout guidelines.Does anyone know where to get the full slide?       

Has anyone been able to implement the MCP in python or C code?  I've been trying to figure it out in Python for a while now.  It's really disappointing ST doesn't provide a .c/.h file for this protocol as I've wasted a ton of time trying to re-implement what Motor Pilot does.  This is really low quality support from ST to say "go read the documentation and re-implement this complex protocol". Here's a link to a post I made previously with some other good links and info:https://community.st.com/t5/stm32-mcus-motor-control/aspep-mcp-protocol-implementation/m-p/727572#M10997

Hi everyone,I'm new to STM32 and I'm using Debian Linux with the STM32CubeIDE.I'm trying to use a NUCLEO-G431RB with the X-NUCLEO-IHM07M1 expansion board, using the legacy X-CUBE-SPN7 (apparently the X-Cube-MCSDK is Windows-only...)I've run into a pin conflict: the expansion board expects the PWM signals on the Arduino standard pins, but on the G431RB those pins are physically connected to separate timers (TIM2, TIM3, TIM8, etc.).My understanding is that the 6-step libraries (and motor control in general) seem to prefer using a single advanced timer (like TIM1) for synchronization.Does this timer conflict make sense? As a last-case scenario, I thought of just connecting both boards using jumper wires (mapping TIM1 outputs to the IHM07M1 inputs) instead of mounting them on top of each other. Is there a known workaround for this?Thanks!

Hi,I am using a EVSPIN32G02Q1S1 with LIN motor (BL23E33-01D-04RO) running in sensor-less only with 6-step moving 1 time with 1 turn and stops. I cannot connect Motor Pilot to the board for some reason (using the boards built in USART output to a RS232/TTL converter).I have tried this before with a EVPSPIN32F0601S1 and the LIN motor running at 50VDC and reset the motor parameter from 24VDC to 50VDC to match the minimum of the Inverter board both sensor, sensor-less and FOC and 6 Step with the same result but using the Motor Pilot, it kept coming back with Over Current no matter what I changed. My supply is 50VDC and runs up to 7 amps, and the current monitor I have connected in line says I am only pulling 0.5 amps when the over current occurs.So, my question is this.Does the Motor Work Bench change the parameters of the system settings to match the inverter and motor pair or is that up to me to do?Any help on this would be great. Thanks in advance.Charles 

Hi,Using STM32F429VET trying to achieve FOC with single shunt resistor over 3phase bldc motor.I am using TIM1 and corresponding CC2, CC3, CC4 as PWM channels. CC1 is used to trigger ADC in regular mode reading current over shunt resistor in S1 and S2. The PCLK2 is at 96MHz, ADC divided by 4. That all seems not to be enough.I am struggling to achieve precise and yet fast enough reading. The final PWM frequency is 20kHz in center aligned mode. The motor has to move in 1/100 duty but that seems to be unable to achieve because of timing windows to read ADC. Dead time is at overall 500ns, given that the overall 25uS I have in center aligned mode, all time is crucial.I am already doing all the magic stuff like using DMA to trigger ADC reading based on CC1, DMA to do TIM CCx updates upon Update events (shadowing CCx).I heard about FOC control from MC Workbench but am I supposed to do incredible stuff to create my own board and inverter through declarations to get it? This seems ridicoulous wh

Hi there,As the title suggests, I am working on a new project for my DIY board.I already created a new inverter board with the board designer. (See the inverter config in the attachment)I also configured a motor like below:However, after I merge the inverter and the motor by creating a new project, there are some errors shown:Question:1. Can I find some information for the LOG? If yes, where is it?2. Why can't I select the FOC or six-step algorithm? Is there some wrong configuration?3. What's the problem with the current sensing?Thanks for your help! 

Hello ST Community,I am developing a product for residential pump control based on AC Induction Motor (ACIM). I am using the STM32 Motor Control SDK and have been studying the example on the wiki page: STM32MotorControl: SDK_AC_induction_motor.This software example is a good starting point. However, for hardware, it references the use of three separate evaluation boards (e.g., STM32 Nucleo, X-NUCLEO-IHM, and a power board). For a real product, this approach is too large and expensive. I am looking for a dedicated, consolidated hardware reference design for this application. Specifically, I need a complete schematic that integrates the STM32 MCU, the 3-phase inverter (with gate driver or STSPIN), current sensing, and power supply onto a single board.Does ST provide such a dedicated, consolidated reference design for a sensorless FOC ACIM driver? If so, what is the design name or document number?Are there any existing reference designs (even for PMSM) that I can use as a foundationa

1. In the B-G431B-ESC1 development board, there is a component labeled U5 (ST890DTR) in the circuit. Could you please explain the exact purpose or function of this component in the board’s design?2. If the U5 (ST890DTR) component is removed from the B-G431B-ESC1 development board, what types of issues or malfunctions could occur? Would the impact be considered minor, major, or critical to the board’s operation?

Hi friends. Help me figure this out.Am I missing something, or is my board faulty? MCSDK 6.4.1Motor 12n14p  In 6-step mode, the motor operates correctly, and the phase signal waveform also appears normal.  But in FOC mode, something strange happens; the motor is practically impossible to spin. In the profiler, it usually starts on the first try, and the program allows you to save the motor parameters, but the motor spins noisily, and profiling a second time in the same session is impossible; the motor won't start. A default project created with the motor parameters from the profiler also fails to reliably start the motor in the Pilot program.Shouldn't the signal in FOC mode look like a sine wave?

I'm using Motor Control Workbench 5.4.4.20160 to build up code for motor control. There is a issue that In some specific situations, the dead zone will disappear, which can be seen in figures bellow. I give a constant d-axis current and force positioning the hEIAngle. If the hEIAngle is 0, the dead zone looks normal. But if the hEIAngle is set to 20479, then the dead zone disappear. Moreover, I run a continuous angle ramp and recorded the measurement results of the oscilloscope in the attached video. I have checked the register BDTR, it seems every bit is normal. Could you help me out for this issue?Thank you for your kindly guidance.

We are using MCSDK 6.4.0 in Position Mode with a 3-Phase Motor with quadrature Encoder (only A+B phases, no Z Pin).How can the motor phases be swapped at runtime in Software (U,V,W -> V,U,W), e.g. when the motor is connector is wired in the opposite direction (but the motor encoder is wired correctly)?I know that i can set up the PWM Outputs in MC Workbench (as well as swap encoder pins), but i need a solution that can configure this at runtime without rebuilding the Project. I could not find a function for that (just feeding an inverted Position to MCI_ExecPositionCommand() does not take into account that the motor encoder is wired for an opposite direction as the motor phases).If this is currently not possible, can you add this feature in a future release?

In Motor Control Workbench's Current Sensing tab.  It shows the default Shunt resistors at .005Ω.  The boards that were shipped to me have .01Ω.Is this by design?  What do I need to change in the Current Sensing tab to work properly with my hardware.  

Hi there,I am newbie to motor control, and I am studing how to use the excellent tool named MCSDK6.Below is my work follows(MCU is STSPIN32G4):1. open MCSDK6 and select my custom board and motor, generate the project;2. open cubeMx configurate the others PINs, then generate the project;3. write some app code;4. i find the motor config is something wrong, so I open MCSDK6, change the config and generate the project again;5. then I found the config in step2 is lost.Is anything I did wrong? I think if the config could keep is better.Thanks for you help.

Hello everyone,I'd first like to mention that this project is being developed with support from ST Brasil, which has provided important components to aid in this development.I'm working on firmware for motor control and, being new to this area, I'm looking for guidance on the best way to implement a specific part of the logic. 1. Summary and Context Here is a summary of the hardware and MCU configuration:Hardware: 3 low-side shunts. The signal from the Phase U shunt resistor is shared, acting as a common input for two of the MCU's integrated op-amps.MCU Config:1.1. Timer 1: Configured for Center-Aligned Mode 1. * CH1/CH1N, CH2/CH2N, CH3/CH3N are complementary PWM outputs. * CH4 is used to generate a capture-compare interrupt.1.2. ARR Value: The ARR (Auto-Reload Register) value is 1000.1.3. Interrupt Trigger: Timer 1 CH4 is set to generate a capture-compare interrupt when the CNT (counter) reaches 900.1.4. Modulation Index: For modulation index purposes, the maximum value for

Hello Expert, I am working on an STM32F303VET6 project using the MCSDK. I want to configure TIM16 to generate a 10 ms periodic interrupt . However, I noticed that on this MCU, TIM16 shares its NVIC vector with TIM1 (TIM1_UP_TIM16_IRQHandler), which is already used by MCSDK for motor control.Could you please advise:Can I safely use TIM16 for my 10 ms task while TIM1 is used by MCSDK?If yes, what is the recommended way to handle the shared interrupt? Are there any potential conflicts or timing issues I should be aware of?If the solution could be illustrated with an example, it would make me so happy. In MCSDK- 6.41 , #define TIMx_UP_M1_IRQHandler TIM1_UP_TIM16_IRQHandlervoid TIMx_UP_M1_IRQHandler(void){/* USER CODE BEGIN TIMx_UP_M1_IRQn 0 *//* USER CODE END TIMx_UP_M1_IRQn 0 */LL_TIM_ClearFlag_UPDATE(TIM1);R3_2_TIMx_UP_IRQHandler(&PWM_Handle_M1);TSK_DualDriveFIFOUpdate(M1);/* USER CODE BEGIN TIMx_UP_M1_IRQn 1 *//* USER CODE END TIMx_UP_M1_IRQn 1 */}

I have been working with sensorless BLDC motor control using NUCLEO-U575ZI-Q + NUCLEO-IHM08M1. When I work with Motor Control Workbench I see this warning "IWConnect: BEMFSensingADC BEMF_V is not connected to any matching input (ADC[0-9]*)_IN(?!N)"  Can anyone explain this?  Is there any physical wiring needed? 

Are the X-NUCLEO-IHM08M1 motor driver board and the NUCLEO-H533RE development board compatible?I noticed "STM32 Development Boards Portfolio", but I’d like to confirm compatibility before proceeding X-NUCLEO-IHM08M1 | Product - STMicroelectronicsNUCLEO-H533RE | Product - STMicroelectronicsThank you