STM32 MCUs Motor control

Hi, I am using L476 controller with MCSDK 6.3.0  to control the BLDC motor, able to control the motor with Motor pilot application. However, i need to control the motor using serial communication IDEs like Realterm or Putty.I referred the document "Motor Control Protocol Suite" but didnt succeed in understanding and implementing the same. Please share some examples of the commands.I want to use command service only not the ASPEP. Looking forward for the support as soon as possible.

What is the P variant of STDRIVE102 and how does it vary from the STDRIVE102H?I can find datasheets for STDRIVE102H/STDRIVE102BH - with the BH variant having 3 Shunts(OpAmps) vs the standard H having 1 Shunt(OpAmp).The boards manager in ST Motor Control Workbench has the EVLDRIVE102P & EVLDRIVE102BP Evaluation Boards that point to the following (broken) links:https://www.st.com/en/product/EVLDRIVE102Phttps://www.st.com/resource/en/data_brief/EVLDRIVE102P.pdfI see Digikey and Mouser have stock of STDRIVE102P.

I am using Motor Pilot 6.4.1 Profiler and noticed that there is no "Start Hall Profiling" option available.Could you please confirm if this feature has been removed or if it is located elsewhere?Best regardsPelino 

I am currently working with the STM32 Motor Control SDK and would like to ask a question regarding the Placement Electrical Angle.Due to hardware limitations (single-shunt current sensing) and tool constraints, I am unable to use the Motor Profiler.In this situation, I would like to know:Is it possible to measure or determine the Placement Electrical Angle without using the Motor Profiler?

I am currently using the X‑NUCLEO‑IHM16M1 expansion board and noticed a discrepancy between the Motor Control Workbench and the official ST documentation regarding the rated current.In Motor Control Workbench, the Rated Current is shown as 2.1 A.On the official product page and data brief, it states Output current up to 1.5 A rmshttps://www.st.com/en/evaluation-tools/p-nucleo-ihm03.html Could you please clarify the following:What is the basis for the 2.1 A figure shown in Motor Control Workbench (e.g., RMS, peak, or internal limit)?Which current rating should be considered as the actual board limit for design purposes?Does the difference relate to the STSPIN830 driver’s internal specifications or to a configuration sett

Hi, the MotorControlWorkbench is generating the Feedforward control constants:M1_CONSTANT1_QM1_CONSTANT1_DM1_CONSTANT2_QDHow are the calculated, are there any documentation or formula for it?The Feedforward seems to be relevant for my project because I see current ripple aligned with my DC bus voltage ripple. But in practice there is no improvement, if I activate the FeedForward control. Also the bus voltage is measured with 1 ms and a filter with 6 values is applied. Are there any tips for my application if I have a bus voltage ripple period of 10 ms (3 Phase, 50 Hz)? Thanks for Help Sebastian 

Hi!I’m working on a motor controller design that utilizes an stm32f4 and a magnetic angular position sensor which communicates via spi.My design currently performs current sensing; I use channel4 of timer1 to trigger ADC reads near the center of my center-aligned UVW PWM period.This works great so far, but now I’m trying to think through how/when to schedule SPI reads of my angular sensor. I can straightforwardly perform an spi read when the ADC conversion completes, as part of my inner torque control loop. Is this reasonable to do? Is there a better way? It seems like the best time to touch off such a read is at the same time as when I trigger my ADCs. But I can’t quite figure out how I might do this.Thanks!

Hi all!I am using the IHM08M1 power board for a BLDC/PMSM motor application, and I have a doubt regarding the L6398 gate driver input logic.My question is:If I use PWM to control the high-side MOSFET and a GPIO to control the low-side MOSFET, is this approach correct when working with the L6398 gate driver?I am asking because I am currently using complementary PWM mode on my microcontroller. In complementary mode, the signals are inverted (PWM and its opposite), so HIN and LIN cannot receive the same logic level. Because of this, the L6398 truth table does not match, since the driver expects:HIN = HIGH, LIN = HIGH → High-side ONHIN = LOW, LIN = LOW → Low-side ONWith complementary PWM, this is impossible because the two signals are always opposite.So I am considering using:PWM → HIN (high-side)GPIO → LIN (low-side)I would like to know whether this method is

Hallo,i try to run an B-G473E-ZEST1S with STEVAL-LVLP01A. I generate code with the default setting from MCSDK 6.4.1., STM32CubeMX 6.16.1, STM32 FW V1.6.1 (Recommended)I changed nothing on the board hardware or MCSDK settings, i choose the 2 boards and generate code, but after startup I end always in an "<signal handler called at 0xffffffe9>".The error occours after MX_NVIC_Init(); without MX_NVIC_Init(); the code is running, so it has something to do with the interrupts, but I don't get it.Does anyone know what could be the cause of this error? Has anyone successfully used this board with the MCSDK 6.4.1?Thank you!

I am using Nucleo L476RG for controlling BLDC motor. In the FOC control, i need to change the motor ID in the code. What is the procedure to change motor ID??

Hi,I wonder how the motor control unit should behave if a speed ramp is programmed right after a torque ramp?Following code snippet shows this setup:// Set Torque/Iq limit MC_ProgramTorqueRampMotor1(iqLimit, 0); // Programm speed ramp MC_ProgramSpeedRampMotor1(speed, 500); // Start motor MC_StartMotor1();Do I understand correctly that this code should lead to the following behavior?the motor starts in speed modeif the load driven by the motor increases the speed will decreaseif the load increases further the motor will run with decreasing speed until it reaches the torque/iq limit set by  the MC_ProgramTorqueRampMotor1() functionthe motor will stop and deliver a constant torque - the torque programmed with MC_ProgramTorqueRampMotor1() Best regardsB0bbyR4y

Hi everyone,I’m currently working on a project using the ST B-G431B-ESC1 discovery kit to drive a 24V 250W BLDC hub motor. I'm using the SimpleFOC library for control and have added a small heatsink to the board to manage temperatures.The issue is that after running for a short period, I keep losing MOSFETs; they just randomly burn out. The motor wasn't even under heavy load when it happened, but I was trying to tune the PID, so there was some jerking.What could be causing this? Is it likely an overvoltage spike, an overcurrent issue, or something else entirely? How can I find the root cause, and is this board truly capable of driving a 250W–350W motor continuously, even with enough cooling?

Hello, I am driving a motor using the STEVAL-SPIN3201. The code is generated via the mc workbench.When I test the programm, the motor behaves like that:The motor starts up slowly according to the start up procedure I chose in the workbench.Then suddenly the motor moves with fullspeed for some seconds.After this the motor slowes down to the desired speed. Now I am able to change this speed via the motor pilot. When I change the Kp and Ki value, I can reduce the duration of the "full speed periode". However, it is still there. Can you explain what is happening and why the motor moves to full speed for a short time? Thanks a lot for your help!Florian

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

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

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.

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

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

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

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!