STM32 MCUs Motor control

Hi ST team,I am using STM32G474RE+IHM08M1 NUCLEO board with FOC library with HALL feedback.Please find the ST Motor Pilot software tool snapshot after interfacing. for your reference. We have profiled the motor using motor profiler software and used the same motor profiler output to configure the project using ST motor control workbench. Observation:Image2, I have a problem with producing initial Torq on motor coils, as seen from the image attached below I found Torq reference is set to 8A but measured value ranged from +1A to -1A, which is way below the reference value. When I turn the wheel(external force), wheel is automatically picking the reference Torq at that point. I have tried tweaking the Iq and  These are my questions: 1. What are the common causes of the Startup torq issues in a motor controllers(HALL +FOC)?2. How to tune Iq and Id loops to find the right parameters of Kp and KI? 3. What should be the order of turning of Iq and Id loops? A

Does stm32g4 HRTIM support generate phase shift full bridge PWM with Peak current mode control, including peripherals HRTIM ,DAC,CMPx ?

Hello,I am using a EVSPIN32G4-DUAL board to drive a 48V BLDC motor and using an encoder for speed feedback.After a week of troubleshooting I was able to determine why my motor project could not achieve speeds above 700 RPM. The board has RC lowpass filters on the encoder / Hall sensor lines. The capacitor is oversized (1nF) and gives a lowpass cutoff frequency of about 16kHz. For comparison, my encoder with 2500 pulses per revolution spinning at 700 RPM yields about 29kHz. So at and above 700 RPM the encoder signal was becoming attenuated by the filter and could not be detected by the microcontroller.I was able to solve this by removing the 1nF capacitors and replacing them with 12pF.For example, the STEVAL-CTM015A1 uses 1.8K resistors and 10pF capacitors for the same purpose. So, it would be helpful if someone at ST could update the documentation or software to provide a warning when using this board and encoders at high speeds.

Downloaded the STM32Cube Motor Control SDK and installed the app which came up as ``Motor Pilot 6.3.2`.I connected the STM32 MCU board (B-G473E-ZEST1S) via USB to my desktop.When I launch the program it looks like this:It shows that there is ``No Connection`` to the board and the only option is for a UART on com3 or com4. When I try com3 and press Connect, the program closes.Any help would be greatly appreciated!BarryTedco Electric   

1) There is no availability of the X-NUCLEO-IHM09M1 at Mouser or Digikey. Both vendors do, however, have stock of the X-NUCLEO-IHM09M2. Has the M1 been discontinued? Please let me know if there is any difference between the M1 and the M2.2) If it turns out that the M2 replaces the M1, does SB26 still need to be removed? It’s going to be very difficult to remove SB26 without damaging the board due to its tiny size and awkward location.3) I also need the specs and part number on the 34 pin ribbon cable that interfaces the B-G473E-ZEST1S controller board to the STEVAL-IPM30B evaluation board.

 Hi,When I want to generate the code, it says that the STM32CubeMX version is not supported.Also in the STM32CubeIDE Pinout & Configuration page I don't see "X-CUBE-MCSDK" in the "Middleware and Software Packs" tab.How can I solve this problem?Motor Control Workbench in: C:\Program Files (x86)\STMicroelectronics\MC_SDK_6.3.2STM32CubeMX in: C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeMX(It was installed in the locations it automatically selected during installation. Both are installed for "all users".)OS: Windows 10 ProOS language: Turkish 

I am working on a BLDC motor control project using ST MCSDK Workbench 5.4.7. The motor has 15 pole pairs.When I configure the system to use a quadrature encoder, I can rotate the motor and successfully control its speed in both directions using the Workbench. However, when I switch to Hall effect sensors (HALL _H1, HALL_ H2, HALL_ H3), I can still rotate the motor in both clockwise and counterclockwise directions, but speed control does not work. The motor spins at a constant speed, and changing the speed setpoint in the Workbench has no effect. Kindly help me in this. 1.What would be causing the speed control to fail when using hall sensor?2.Are there specific settings or configurations in MCSDK workbench for Hall sensors that might be affecting speed regulation? 

How to Generate a 3-Phase SPWM Signal Using Only TIM1 on STM32G031K8 or STM32G071RBT6?   I’m trying to generate a 120-degree phase-shifted 3-phase SPWM signal using only TIM1 on either an STM32G031K8 or STM32G071RBT6. My goal is to drive an FSBB30CH60C IPM module with complementary SPWM signals to control a 3-phase asynchronous motor, similar to a VFD (Variable Frequency Drive).   Has anyone done this before? Any tips, example code, or best practices would be greatly appreciated!    

Hello guys,I have just started using STEVAL SPIN3202 v3 board for controlling 8 pole BLDC motor with 3 hall sensors in FOC mode,I am using MCSDK v 5.4.8, STM32CubeMx version 6.4.0, and cube IDE version 1.12.1,I just want to know if there is any example project based on this board which i can follow along,I have been trying to generate project but always getting different errors,user manual does not provided error debugging,please help what i am missing.

Edit by ST Moderator: This post has been translated from Chinese to comply with the ST Community Terms and Conditions (§10.2).  

Good day,First, a bit about my hardware:Motor:4 pole pairs24VMax speed: 3080 rpmInverter board:B-G431B-ESC1External power supply via power adapterEncoder:490-AMT10E2-V set to 640 PPRNow to my problem:When I start the motor in sensorless mode, everything works as expected.However, as soon as I use the encoder, it stops working — the motor just twitches briefly. In Motor Pilot, it briefly switches to "alignment" but immediately falls back to "idle."In the plot, I’m monitoring the ENCODER_EL_ANGLE, which moves smoothly between -180 and +180 degrees without any noticeable jumps if i turn it by hand.I also tried setting the encoder as an auxiliary sensor just to observe it while the motor is running, but even then, the motor doesn't work — same behavior as described above.I’ve read the encoder data using my own code, and it works even at higher speeds.Changing the encoder direction or adjusting the alignment current and time didn’t help either.Does anyone have any idea what could be wrong?T

Dear All,I hope this email finds you well! I would like to understand the implications mentioned in AN5166 regarding MCU replacement. Specifically, when using STM32 MC SDK to generate a *.ioc file and redefining the MCU, the Motor Control in the Middleware menu has already been lost. Additionally, during the code generation process from the *.ioc file, the related files are deleted, causing compilation failure.Furthermore, as part of the process, I attempted to switch from a 64-pin MCU to a 48-pin MCU within the same series, as guided by AN5166. However, the generation process encountered anomalies. Notable observations include the disappearance of Middleware features such as Motor Control and the deletion of essential files leading to compilation failures. This issue raises concerns about the compatibility and stability of Middleware during such transitions.Could you please clarify this issue and provide any strategies or recommendations to address it?Thank you for your insights and s

I used a custom development board, chip model STM32G474 to develop functions related to dual motor control, but when producing the cubemx project, the tip: Unable to generate ioc file due to: Negative index not allowed: -1...Version info:MC Workbench: 6.3.0WB_to_Mx: 6.2.3.template-24-04-17STM32CubeMX: 6.10.0MC Firmware Library: 6.3.0-Full Project attachment (.stwb6) and control board configuration file (.json) in attachment, suffix changed to TXT due to upload restrictions 

Hi, Is the Phases Voltage Sensing already supported for STM32H7 MCU's?[PN]: STM32H755ZIT3[VERSION]: MCSDK 6.3.2[TOOL]: MC Workbench + Board Designer[DETAILS]:I've noticed that with a custom board I created that there's a small error under the Project Hw & Info tab saying that the Phases VoltageSensing is not supported for the selected MCU. I also see this coming into the connectAlgo.log file: ERROR - Inverter Board: Following feature not supported by MCU: PhaseVoltageSensingERROR - Inverter Board: Following feature not supported by MCU: PhaseVoltageSensing This error seems to disable the HSO mode for theSpeed Sensing Selection although the feature is available on the inverter board:[EXPECTED BEHAVIOR]: When the feature PhasesVoltageSensing is configured for an inverter board/MCU the HSO should become available for Speed Sensing Selection in the MC Workbench .[HOW TO REPRODUCE]: Configure an inverter with STM32H755ZIx MCU and add the PhasesVol

Hello, I've recently been doing motor control projects and I came across MCSDK 6, For a few days I've been racking my brains trying to adapt my custom board to the software, but I'm having doubts about calculating the "Offset resistor". How can I get to this value? Can I stipulate it?

Hello,I recorded plots using the real time scope of the MC Control Pilot, and I noticed that the generated file does not include all the points. There is a gap between 2 sample points and its recurring in every plot. TIMESTAMPS I_Q_MEAS I_D_MEAS I_Q_REF I_D_REF2209385 3.68703 0.129801 3.58856 02209386 3.62549 0.202535 3.58856 02209438 2.23236 -0.421855 2.05668 02209439 2.24019 -0.527039 2.26929 02209440 1.95821 -0.649007 2.26929 0 There is at least 50 stamps which were lost.What could be the issue?I am on the latest MC Contol Pilot Version 1.2.12Thank you  

Greetings,I would like to know what modifications are needed to increase the output peak current of STEVAL-ESC001V1 board from 30A to 100A. I understand that upgrading to higher-power MOSFETs is necessary—are there any specific MOSFET recommendations for this? Additionally, what other design changes would be required to support this increase?Furthermore, I am interested in implementing the Dshort protocol. Does the current firmware support Dshort or Multishot protocols?Looking forward to your kind insights.Thanks!Rahul mandal

The only api that i found related to angle in observer + pll (sensorless) mode is MC_GetElAngledppMotor1 ...Can i do something with this thing ..?@GMA  

Hello, I was reading the RCM Regular Conversion Manager. It states that it is forbidden to add new injected channel on ADCs using current sensing. However, they do give an option to use regular conversion. But in my case, I need to read a sensor at the  same time of the current sensing. Since we have two ADCs used for current sensing since I am using STEVAL-PTOOL4A, is it possible to add this channel as injected one on both ADCs ? and what is the issue in adding it to one of the ADC as injected channel? I don't get what could be the issue? Thank you.

Hi, We are trying to develop a ESC for Drones of smaller size i.e. with low payload... Currently we are using motors of T Motor Make F2004 1700KV model, Ideally we should be achieving motor speeds up to 20000 RPM , We were looking into two of STM reference design to start the development i.e. BG431BESC1 and STEVAL-ESC001-V1, Can you please help decide which would be platform suited for this kind of application... We already have BG431BESC1 with us is that suitable to go ahead with the same. Thanks and RegardsSijeo Philip

Hi, [PN]: STEVAL-CTM009V1 with F446RE[VERSION]: 6.3.2[TOOL]: MC SDK[DETAILS]: just can't get the engine to turn[EXPECTED BEHAVIOR]:the engine turns[HOW TO REPRODUCE]: see below...First:There is a bug in RevUp—see the picture below. When changing the torque current values, the input value is automatically reset to 0.Second:I identified the motor parameters using the IHM08M1 board and configured the machine accordingly.The machine successfully rotated!Third (CTM009V1 Hardware):I have concerns regarding the current measurement using the ICS. I suspect that they are either not measuring correctly or that there is an underlying issue.One aspect that frustrates me is that a data stream is not displayed unless MotorPilot is started.I would like to send a current through a test-cable to verify whether the ICs are functioning correctly.But if I don't start the Motor-Pilot I don't see any data stream -.-Fourth:Next, I attempted to generate an open-loop current, but unfortunately, I fai

 I'm trying to design an inverter with an STM32G441CB, but it's not an available option in STMC Board Designer. Is there a workaround by using another MCU in the G4 family? ThanksAndrew

Hello,I am trying to use PC15 as GPIO input on the STEVAL-PTOOL4A. I configured it using CubeMX with pull-down resistor however the pin status is not changing in the software. I am sure my switch works well (checked on oscilloscope) and the LSE is disabled. Just I generated the code using MC Workbench and configured the PC15 as input mode. Normally it should be configured for DIR signal as per the datasheet. In addition, I have found that the J13-5 (which normally should be connected to PC15) is always at 3.3VIs there any additional configuration that should be made?Thank you for your support 

I started working successfully with MC_SDK 6.3.2. I am doing position control application with BLDC motor. In "ST Motor Pilot v1.2.12-PositionControlApp" I want to set "Terget Position" value to values ​​bigger than the set max value. From which file can I do this? And I want to change the variable type from "radian" to pulse etc.

I want to confirm if the below 3 commands 1,2,3 can be given sequentially or any delay required between them. These 3 commands i am giving when a key is pressed. if(IDLE == MC_GetSTMStateMotor1()) { g_qdreference_s.q = 1000; MC_SetCurrentReferenceMotor1(g_qdreference_s); - command 1 MC_ProgramTorqueRampMotor1(g_qdreference_s.q ,1000); - command 2 (void)MC_StartMotor1(); - command 3 }