STM32 MCUs Motor control

I am working with the following tool versions:MC Workbench: v5.4.8STM32 Firmware Package: v1.11.3STM32CubeMX: v5.6.1Since I don’t have the Bull Running C1700KV motor, I’m using a 900KV motor with a 6S battery. I’ve already run the profiler, obtained the motor results, and entered those parameters into MCSDK.My question is: Which additional parameters should I adjust to generate reliable firmware for this setup? 

Subject: Critical issue: Board damage during EEPROM emulation write with MCSDK (STEVAL-IHM045V1 + STM32F303)In Hello Experts,I am working with STEVAL-IHM045V1 power board and STM32F303 evaluation board, running MCSDK (FOC, PMSM, dual motor).Mcsdk 6.41Current control approachI am using ProgramTorqueRamp() instead of ProgramSpeedRamp() because speed mode causes audible noise and instability at low speeds.Motors run normally under wall control.Wall control uses 1-wire USART-based communication customized.User sets a PWM-like value from wall control, which I map to a torque reference. By calling  Mcacknowledge(); ProgramTorqueRamp(torque_ref, 4000);  startmotor(); in the while loopTarget - The user-selected pwm value must be stored using EEPROM emulation (Flash write).                   Example user can set any pwm, in Speed 1 pwm 25 , speed 2 pwm 45, speed 3, pwm 65 , speed 4 pwm 75, speed 5 pwm 100Critical problemWhen I attempt

I am using B-G473E-ZEST1S + STEVAL-LVLP01 + R57BLB50L2 in HSO configuration. Whenever I start the motor I can observe LED1 on STEVAL-LVLP01 is turning ON for few ms. Though motor is starting and running successfully. But I need to understand why I am getting Driver Fault from STDRIVE101 IC (TIM8_BRK2) at startup. Can I eliminate this with correct configuration? Attached MotorControl Workbench project and MotorPilot snapshot for reference.   

Hi all , System and Motor Parameters:Bus Voltage: 24VRated Current: 40APWM Frequency: 40kHzPhase Resistance (Rs): 0.1ΩPhase Inductance (Ls): 0.03mHBEMF Constant (Ke): 1.1 Vrms/kRPMMax Application Speed: 12000 RPMEstimator & PLL Parameters:Speed Estimator:G1 (C1): 552G2 (C2): 592PLL Kp: 500PLL Ki: 100I am currently using sensorless FOC control. When the motor reaches around 6000 RPM, I observe that the motor noise becomes noticeably sharp, and current feedback (monitored via oscilloscope) shows increasing oscillation. Eventually, it triggers an over-voltage (OV) protection error.Based on my understanding, I suspect the angle estimation error increases with speed, causing misalignment between the control and actual rotor position. This might lead to excessive back-EMF, resulting in bus voltage overshoot and an OV fault.I’ve tried adjusting G1/G2 and PLL Kp/Ki via Motor Pilot, but the issue persists.Additional Question:When I reduce Max Application Speed  from 1200

Good morning , I'm writing this post to request help , the main problem is two things the first and the main thing being the 1000W 3500 RPM 3 pole pair 48V motor not giving it rated torque of 2.5 Nm and only gives 0.8 N.m , this was confirmed as the motor works fine with a premade controller of the motor , further more the motor gets stuck and the torque reference goes to 19.99A however this does not happen with the premade controller , the motor works fine with the stm controller when no load is applied, the motor has been already profiled using the smt32 motor profiler, and motor barely gave any errors on the stm32 software however almost minimal torque, also as we are using a data acquistion system that is extremly accurate it measure 2A DC from the battery of 48V however the stm32 motor control software's torque reference showed 8.6 A , and the hall sensors are slight off , so at 370 RPM in the stm software its actually 500 and at 740 is 1000 and at 1110 its 1500 and soo on.the rea

I'm looking to upgrade one of my years-old BLDC 6 step designs which used STM32F401 and too many other components! I like the look of STSPIN32G4 and so purchased an EVSPIN32G4 development platform.It seems I have successfully worked through MC Workbench 6 Step Wizard, including adding my test motor, without error and one warning - pwm generation "Danger: there is no OCP nor Driver Protection enabled" - this despite there being everything required for this on the EVSPIN board but no option to enable it (can we add this to the wish list please).'Generate the Project' works, I've followed through with CubeMX and IDE, produced code and downloaded to EVSPIN32G4 - all good.ST Motor Pilot connects ok with board, clicking on 'Start', motor briefly kicks before Pilot reporting 'Speed Feedback' fault. Using 'Ack Faults' to clear the error, 'Start' again produces same effect consistently.In 'Advanced Configuration' I notice a 'Speed Kp' value of 2038.  Changing this to -2038, I can now run t

When i give varying PWM signal at high frequency under range, the motor sometimes produces noise and gets stuck (0 speed even though pwm signal is valid). What is the issue? I feel its due to PID tuning. Kindly share PID tuning method.Thanks 

Hi, I'm a circuit engineer in korea.I want to make really small BLDC FOC controller with STM32G491KE, because It has the smallest pin counts compare to other G491 family.For FOC Control, I have to use three TIM channel. For use external ociliator, I have to use TIM1_CH1_CH1N, TIM_CH2_CH2N, TIM8_CH1_CH1NIf I use TIM channel with that combination, Will FOC controller work well? Is there any differences with TIM1 and TIM8?I want to use 491KE Series for smallest FOC Controller. Thank you. 

Board: B-G431B-ESC1OS: Windows 11Attempting to use the Motor Pilot or Profiler but unable to connect. I know I am connected because ST-Link can read the MCU and I am able to program it. From previous posts it seems to be related to the version of MCSDK so I attempted to use 5.4.8, 6.2.1, 6.2.0, 6.1.0, and 6.3.1. Done the obvious restart computer, board, run as admin.Generated Firmware using the MC workbench, ensured Motor Profiler was checked in Application Configuration and uploaded to boardDouble checked to make sure UART was initializedAnother post said to set build configuration to release, didnt work Not sure how to diagnose from here  From the Motor Profiler (Any of them)[INFO] - UART worker: Successfully open port COM6 @ 115200[INFO] - : try to configure the board'From the Motor Profiler (Any of them)[ERROR] - : Failed to discover Board at 1843200 Bauds and 115200 Bauds[INFO] - : disconnect UART START[INFO] - : Disconnected from board[INFO] - : disconnect UAR

Hi       I hope you are well.Background: The SPI bus of MCU has 9 slave devices, with loads of 1pcs x C component, 2pcs x A component, and 6 pcs x B component. The SPI rate of component is 200kbps, the SPI rate of A component is 1Mbps, and the SPI rate of C component is 100kbps. The SPI waveform has ringing, and the SPI communication between C component and  A component sometimes reports errors.Request for support: Can you provide SPI multi device bus design materials to evaluate whether MCU can drive multiple SPI slave devices, whether the number of SPI slave devices is reasonable, and whether the capacitive load of slave devices is reasonable?

Hello everyone, I am using the STMicroelectronics IHM16M1 motor driver board with STM32 MC Workbench–generated six-step PWM firmware. Before connecting a real BLDC motor, I want to test the inverter stage using a purely resistive load to verify: PWM switching behavior Absence of shoot-through Proper high-side / low-side commutation I would like guidance on the correct way to connect a resistive load to this board. My specific questions are: Load connection Should I connect three equal resistors in star (Y) or delta (Δ) across the U, V, W motor outputs? Is one end of the star point left floating, or tied to DC-? Resistance & power rating What resistance value per phase is recommended for low-risk testing? What minimum power rating (W) should each resistor have to avoid overheating? DC bus considerations Is it safe to power the board with the rated DC bus voltage when using resistive loads, or should the voltage be reduced? Any recommendation on current

Hi there,My team has designed a dual motor control board, and I'm responsible for spinning the motors.I have already added the board to MCSDK6 and generated the project without error.However, when I add the code like MC_StartMotor1() after initialization, both the motors are static.I don't know the reason why the motor can't spin.Find the board file and the schematic in the attachments.Can someone help me double-check if I did something wrong?Thanks for your help. May you have a goooood day!

Hi there,I have a motor support both encoder signals(ABZ) and hall signals(ABC) output.But I checked the DEV Kit and the examples of MCSDK6. Most examples use only one of the position feedback sensors.And for the MCSDK6 project, I can only configure the encoder and hall signal as a timer input. However, I DIY board can only support TIMER for the encoder and GPIO for the hall.I am asking for help on how to configure the project so that I can use both the encoder and the hall sensor in the motor with my DIY board.(I found a document named "Generation and use of Hall correspondence Table.pdf" by ST in Chinese. But I can't understand some details in this file. Is there anything more that can help me to understand this?)Thank you for your help!  

Powerstep01 has a beautiful function to zero the position of the counter that works in conjunction of an external switch SW. It sets the slowest speed and direction of a movement automatically and waits until a rising edge is detected on from the switch input pin and finishes performing with hard stop and setting zero. The question is how to define the pin address to be monitored.Using Poonor library, is there another library that you recommend?Regards

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Hello,In a seperate post I received help allowing my B-G431-ESC1 to accept PWM input from an ESP32 to vary the speed of a 24V hoverboard motor with hall sensors using FOC.My goal now is to be able to vary the direction of the motor's rotation by varying the PWM.Given that the acceptable range of values is 1060us to 1860us, I had hoped to be able to do this by having values 1060us to 1460us correspond to rotation in one direction, and the values from 1460us to 1860us correspond to rotation in the opposite direction.I was unsure of any official documentation on bidirectional control, but i noticed that when using the motor pilot to manually set speeds, I was able to set the speed reference to be both positive and negative. I found a github with a guide on how to implement bidirectional control and after following the steps it mentioned, I found that when the motor driver was viewed on the motor pilot, the speed reference did indeed switch between positive and negative values with th

Hello;I want to create  Ac induction motor project. So I cannot find ACIM GUI or ACIM profile in MC Workbench any versions. Could you please give an answer for my questions1. Can i download ACIM GUI ?2. Can i find a acim profile  for mc workbench 3. How do i put Acim Selni Ahv 242 to my project Regards Motor Workbench  6.2.1Stm32cubemx 6.10.0Control board: NUCLEO-G431RBPower Board: STEVAL-IPM30B

I am experiencing a "Code Generation" failure in ST Motor Control Workbench, even after performing a clean installation. I have read similar posts and did suggests.To eliminate any "Turkish character", "Path length", or "User permission" issues, I created a brand new Administrator account named "stmdev" on my Windows 11 Home Single Language PC and set the system display language to English (US).My Setup & Steps:Created a root directory: C:\STInstalled STM32CubeMX, STM32CubeIDE, and ST MC Workbench directly into this directory (e.g., C:\ST\MX, C:\ST\IDE, C:\ST\MCSDK).Verified that standalone STM32CubeMX and STM32CubeIDE launch successfully first.Created a basic motor control project in MC Workbench.Upon clicking the "Generation" button, the process fails (CubeMX invocation issue).It seems MC Workbench cannot locate or properly trigger the CubeMX/IDE toolchain, even though they are all installed in the same root directory (C:\ST) and the environment is set to English.Could you p

STM32H755ZITxにX-NUCLEO-IHM07M1を2個接続し、FOC制御がしたいです。MC Workbenchを使用し、STM32H7シリーズからカスタムボードを作成し設定しました。しかしソースコードを生成しようとするとエラーが発生します。この問題を解消する方法はありますか。カスタムボード、MC Workbenchのプロジェクト、生成時のエラーのスクリーンショットをアップロードします。

Hi there! Apologies if this is not the right place to be asking this question, but I'm deep in the weeds writing my own motor controller from scratch, and have a question about timing:My setup uses the STSpin233 with three-shunt low-side current sensing, and an stm32f4 microcontroller. I am using freeRTOS, and have a single task dedicated to motor control. (I have no other tasks yet, but intend to have some other tasks for UI management and audio processing later).At the moment, the way I've structured things is:I have a timer that triggers simultaneous ADC reads of my three shunt resistors at the center of my center-aligned PWM waveformI have an ISR that fires when the ADC conversion is complete. Within this ISR, I release a semaphore. This is the only work done in the ISR.in my main while() loop, I pause to check for this semaphore. When it's released, I run my actual control loop (read from an angle sensor via SPI, FOC/SVM stuff, update PWM duties).I am running my PWM at 20kHz (so,

Hi - I have a new application where I'm trying to slave 1 axis to another axis. The application is an autonomous winch. The master axis drives the winch drum, the slave axis drives a level wind that makes sure the winch line is approaching the drum at a 90 degree angle as the winch line moves back and forth across the winch drum. The slave rotation rate needs to run at a fixed ratio to the master rotation rate, somewhere around 0.1X the master speed. When the line reaches the end of the drum, the slave needs to dwell (slave speed = 0) for a fraction of a rotation and then reverse direction at the same speed ratio. I can sense the line reaching the end of the drum very precisely with an external sensor. Both motors will be BLDC with encoders.I've been using the STEvalServo1 for a different application and have learned a lot. I have some questions about which eval board would be suitable for this application.There are 3 complications.1. In some situations, the master will be running in c

Hardware: EVLSERVO1 official motor evaluation boardIn the "ENC Calc Angle" function, there is a step to perform bitwise AND operation 0x7ffffff on TIM ->CNT, multiply it by the unsigned 32-bit maximum value divided by the polar logarithm. Its left value is a number of type uint32/t, which can cause data overflow. I don't quite understand how it converts pulse values into electrical angles. As shown in the following figure

Hi, I'm struggling with a runaway situation when I try to run my motor at high RPMs. Here is my setup: 48V power supply, 300A max. The motor has 21 pole pairs. I use the FOC algorithm to drive the motor, sensor-less speed sensing (no hall sensor). I drive the engine with a 20kHz PWM. I'm able to run the motor up to about 3100RPM. Then it suddenly jumps to maximum power, and I'm unable to control the motor anymore. Setting a new target RPM lower than 3100RPM still makes the motor spin at maximum speed. When I debugged the system, I see that when we experience the runaway, the FluxWeakening calculations fails, when the measured current is larger than the max current defined in the workbench project. I have defined max current to 300A. The workbench calculates the current conversion factor to 109 as integer, while the actual value should have been 109.22 (as a float). This value is based on the shunt resistor of 0.001ohms and gain of 5.5. However, I changed the current limit values to INT

Hello ST Team,I am working with the B-G431B-ESC1 board using STM32G431CBU6 and the STM32 Motor Control SDK.On the evaluation board, Motor Pilot communicates with the target MCU through the on-board ST-LINK (STM32F103) using SWD and VCP.My question is:Is it possible to use STM Motor Pilot to communicate directly over UART with the STM32G431 (for example via an external USB-to-TTL adapter), without using the on-board or external ST-LINK?