STM32 MCUs Motor control

Dear Experts,I need your help to figure out a problem in my MC configuration. I am using Nucleo-F401RE and a custom motor Driver board similar to STEVAL-IPM20B with 0.01R shunt resistor and opamp used it LM324. The current sense circuit in my custom board is similar to the circuit in schematics of the STEVAL-IPM20B board (the change is instead of 2.1K I have used 2.2K). The motor I have used is JK57BLF02.Sometime motor starts and sometime it doesn't starts.After reaches a certain RPM it starts Jerking.I have attached the screenshots of the configurations I have made.I have tested the setup with 6-step algorithm, its working perfect. Facing Jerk issue while implementing FOC algorithm.Thanks and RegardsYash 

Hello STM Community,We are developing a custom motor driver board based on the STSPIN32F0251 and are encountering challenges with consistently flashing firmware onto the device. Below, I’ve shared our schematic (STSPIN schematic on page 3) and the steps we’ve taken so far, along with the issues we’re facing. Any guidance or suggestions would be greatly appreciated.Board ModificationsThe following modifications were made to the PCB:Grounded the RES5 pin using a flywire.Corrected the V+ and V- connections on U2 by lifting the pins on the package and flywiring them to the appropriate nets.Flashing ProcessWe used an STLink on a NUCLEO-LR476RG to flash the motor control code attached as a zip file in this post. Here’s the step-by-step process we followed:Set S1 on the board to the UP position (tying BOOT0 high to boot from flash memory) and reset the STSPIN using the RESET button.Op

Hi everyone,I'm working with the B-G431B-ESC1 board and need help setting up overcurrent protection. I want to ensure safe operation and prevent damage to the hardware.Could anyone guide me on the best way to configure the current sensing and protection in MC Workbench?Any insights, step-by-step instructions, or shared experiences would be greatly appreciated!Thanks in advance! :rocket: 

Hi Everyone,Currently I am stuck at place where I want to do some changes in default assigned pin of motor SDK 6.3.2 but unable to do after Version 6.I was able to do it in MCSDK 5.x.x.. Versions.if you have any idea about changing pin mapping of ADC sensing pins as well as PWM pins then let me know.@GMA @Zied b..Thanks,

Hello Everybody, MCSDK:6.3.0CubeMX: 6.3.0Workbench : 6.3.0Cube IDE : 1.15.0Power Board : IHM08M1(Rshunt=0.01Ω)Control Board : NUCLEO-G431RBMotor : BLDC 26w 24v/8 pole pairs / rpm=4k / rated current=1.8A/hall sensorPart of the settings from Workbench :  a) Speed Sensing Selection : Observer +PLL(Sensorless)  b) Speed Sensing Config / Auxiliary Sensor - Speed Sensor Mode : Hall Sensor I have some questions about setting the Speed Sensor Mode to Observer + PLL (Sensorless) and using the Hall Sensor as an auxiliary to control SVPWM :1) My understanding is that at low speeds, the Hall Sensor is used to calculate and read θ_e and control the duty cycle. When the motor reaches medium to high speeds, Observer + PLL (Sensorless) takes over to calculate and read θ_e and control the duty cycle. Is this application or concept correct?2) When operating at low speeds, how should the relevant API be called in the program? And when the motor reaches medium to high speeds, how shoul

I'm testing a STEVAL-PTOOL1V1 board, and I loaded the STEVAL-PTOOL1V1_6S_SL sample project in Motor Control Workbench v6.3.2.  I generated the code (which used STM32CubeMX v 6.13.0) for STM32CubeIDE v1.11.5 toolchain, and the resulting code compiled and loaded on the board fine.  The board runs the motor OK, although not at high speeds, where it shuts down, presumably because I'm reaching a current limit.  The motor I'm using is not the one set in the sample project so I tried to change the parameters in MC Workbench and regenerate, but it doesn't seem to change how it operates.  I see some parameters scattered around various header files, but I can't find the power supply max application current (Apk). I would like to confirm the changes I make in MC Workbench are appearing in the generated code, but it doesn't seem to be and I don't know where to look.  I even did a diff on the entire project before and after a parameter change and didn't see any co

Hello Everybody,MCSDK:6.3.0CubeMX: 6.3.0Workbench : 6.3.0Motor Pilot : 1.2.9Power Board : IHM08M1(Rshunt=0.01Ω)Control Board : NUCLEO-G431RBMotor : BLDC 26w 24v/8 pole pairs / rpm=4k / rated current=1.8A/hall sensorI am currently testing torque control, and I am a bit confused about the hFinalTorque setting in the MC_ProgramTorqueRampMotor1 API.I would like to set the Target Torque to 0.02.According to the formula provided in the API:current(digit) = (0.02 * 65536 * 0.01Ω * 5.18) / 3.3 = 20.57 (rounded to 21)Should hFinalTorque be set to 21 or 210?Additionally, do I need to manually enable the timer and PWM? (I have already used the Workbench to generate code and CubeMX to generate the project.) 

Myself using STM32 G474RE board , please someone help me with step by step process with BLDC motor six step commutation control with code."I want to control BLDC motor in six step method using STM32G474RE (nucleo board)".Thank You !@Kenji1 

MC Workbench generates a 6 step_sensless code for the following board: Type: 6-Step / Voltage Mode Control: NUCLEO-G431RB Power: X-NUCLEO-IHM16M1Motor: GimBal GBM2804H-100T Code: pwmc-3pwm.c in middle-ware       Question: In each step, it looks like PWM-ch1 (High-side MOSFET)  and  Enable pin( Low-side MOSFET) turn on at the same step?  For example,in Case STEP_1, both "PWM_ch1(for U)"  and "pwm-en-U-pin" are set to high, why it will not cause short circuit?     /* pwmc-3pwm.c 6 steps DC brushless motor /*_weak void ThreePwm_LoadNextStep( PWMC_ThreePwm_Handle_t * pHandle, int16_t Direction )*/ /* 372-442*/ /* standard configuration */ else { if (pHandle->DemagCounter >= pHandle->_Super.DemagCounterThreshold ) { pHandle->FastDemagUpdated = true; ThreePwm_ResetOCPolarity(pHandle); LL_TIM_GenerateEvent_COM( TIMx ); } switch ( pHandle->_Super.NextStep ) { case STEP_1: { LL_TIM_O

Using MC Workbench to generate an ST Motor Control application and selecting the EVSPIN32G4 as the inverter, it includes the STM32G431VBTx LQFP100 (100 pin edition). This can be seen when opening CubeMX (screenshot included).The EVSPIN32G4 comes with the STSPIN32G4 in the package type "VFQFPN 9X9X1.0 64" using STM32G431VBx3 as according to its datasheet. Hence it is the wrong package type (64 pins vs 100 pins) and more pins are exposed for use than actually available on the inverter board.If I try to create a project directly in CubeMX using STM32G431VBx3, only STM32G431VBT3 shows up (LQFP 100 package), which is indeed what the MC Workbench is selected with EVSPIN32G4. So it is not possible to create a project using STM32G431VBx3 with 64 pin package at all. [VERSION]: 6.3.2 (latest version for all tools)[TOOL]: MC WB[DETAILS]: See above.[EXPECTED BEHAVIOR]: Correct package type used for EVSPIN32G4 (VFQFPN 9X9X1.0 64)[HOW TO REPRODUCE]: See above.

I am using STEVAL-ESC001v1 and a2212/10t 1400kv motor. While giving it supply and reference signal, the measured speed keep on increasing and the actual speed of motor as well. Also, motor_state stucked at START but motor still running. Please help. 

I am using STEVAL ESC 001V1 and enabled Field weakening with FOC, but motor is not running, it is starting, stopped, starting stopped and soon. I also seperately tried setting Id = -ve value but its not working. Please help.

Motor Control Wiki: STM32 Motor Control Knowledge Database - stm32mcuMC Frequently asked questions (FAQ) for version MCSDK5.x:Frequently asked questions (FAQ) - stm32mcu   The documentation of the Board descriptions format is now available on the Motor Control Wiki:   Wiki Link Documentation embedded in the MCSDK:The MCSDK documentation (MCP & ASPEP, Api, etc...) is provided in the package. The fastest way to find it is through the Motor Control Workbench: - Open Motor Control Workbench- Click top right on "About" button- Click on "Documentations" -> "Documentation"- Click on "User Manual" As it is HTML documentation you can also enter this link in your browser: (replace _your_install_folder_): file:///C:/_your_install_folder_/MC_SDK_x.y.z/Documentation/html/index.htmlWe wish to always improve our documentation, The best reviews and critics always come from the people that read it, so we would like to use this post to collect your thoughts and

Created a new thread from STDRIVE101 PWM Output Jitter Inquiry here because it is a question about a completely different device.Dear Peter,Thank you for your explanation. That clarifies the behavior of the STDRIVE101.I have two follow-up questions:Does the STSPIN32G4 behave the same way regarding jitter?Does the STSPIN32G4 use an internal clock?I appreciate your insights.Best regards,Aji

Hello Everybody,MCSDK:6.3.0CubeMX: 6.3.0Workbench : 6.3.0Motor Pilot : 1.2.9Power Board : IHM08M1Control Board : NUCLEO-G431RBMotor : GBM2804H-100TI am currently testing FOC-OpenLoop-Voltage. I am using Motor Pilot for tuning and measuring SVPWM (at OUT1~OUT3) and BEMF (at D6, D8, D10) with an oscilloscope. However, both waveforms appear as square waves. Could this be related to the specific motor model I am using?

    When I increase the speed of the stepper motor, it sometimes changes direction on its own before touching the limit switch. The limit switch is attached to the horizontal shaft and moves with it. When it remains stationary, the system works fine, but at higher speeds, the motor occasionally changes direction unexpectedly. What could be the cause of this, and how can I fix it?

hi,When I want to generate the code, it says that the STM32CubeMX version is not supported. Even though I downloaded the latest version, it still gives the same problem.  How can I solve this problem?Thank you

I am using the __weak void MC_ProgramTorqueRampMotor1( int16_t hFinalTorque, uint16_t hDurationms ) function, but i have small doubt on it, hope i get some answer. I am using throttle to use this function but the problem i feel is when the throttle is 0 - 5% i am using MC_StopMotor1(); function and when throttle increases to some > 10% i useif(IDLE == MC_GetSTMStateMotor1()){(void)MC_StartMotor1(); /* Start Motor */}MC_ProgramTorqueRampMotor1(g_qdreference_s.q ,0);and throttle can frequently change between minimum and maximum the function stop and start motor are frequently called and i feel there is a kind of sound that happens. Instead of Stopmotor i tried using MC_ProgramTorqueRampMotor1(0 ,0); that is make iq=0; but i feel there is noise which is happening using this function, this noise will not happen if i use StopMotor(). How do i proceed? 

I am using TIM4 as a quadrature encoder counter, works fine. It is using the Channel 1 and 2 inputs on PB6 and PB7.Now I would like to add a compare output to create a pulse at a particular position. It seems I have to use channel 1 or channel 2 as there are only CCR1 and CCR2 compare registers. I would like to set a different pin port D12 for the output signal, I have also done this without problem.When I set bit 0 to value 1 in CCER, my output becomes available on D12, great. But it also drives on PB6 therefore corrupting one of my encoder inputs.Looking at the Alternate function mapping I can only set the AF for a pin to be "TIM4_CH1", I cannot specify input or output separately on different pins.Am I missing something here or is it simply not possible to combine encoder mode with a hardware output? I have a compare interrupt and could create an output that way but it is obviously not as good as an output directly from the timer.       

There are two motors, a large motor （Motor1）driven by discrete gate drivers and mosfets, and a small motor （Motor2）driven by the integrated driver L6230.For performance reasons, Motor1 needs a 3 sample resistor scheme (R3_2, ADC1+ADC2), so what current detection schemes can Motor2 have? Does it have to use ADC3 which is not used by motor1, but there seems to be no “r3_1_h7xx_pwm_curr_fdbk.h” in the MCSDK, does it mean that single ADC current sampling is not supported? I'm trying to customize a inverter with H755&Dual motors by STMC board Designer. With basic features loaded, the workbenck failed to generate files like: mc_task.c\stm32h7xx_mc_it.c\mc_parameters.c...Any suggestion? 

Hello,I am experiencing an issue with my high-speed BLDC motor (47,000 RPM, 24V, 180W). Even when running the motor with no load, it is heating up more than expected, and it is drawing more current than the no-load current specified in the motor's datasheet.I am using the IHM08M1 motor driver along with the Nucleo F401RE to drive the motor. Could anyone help me understand why the motor is behaving this way? What could be causing the excess current draw and overheating, even when no load is applied?I would appreciate any guidance or suggestions on how to resolve this issue.Thank you! 

Hello,I started development on the EVSPIN32G4 development board. After generating the project in MC Workbench, the resulting CubeMX project shows up with a STM32G431VBTx MCU. This is a LQFP100 package, but the STSPIN32G4 is only a 64pin device. I am running into problems trying to add more functions to it. So far I added two GPIO's, one input and one output that work fine, but some functions only exist on pins that are not on the physical device.Please advise how I can work around this and possible solutions to develop on this device.Thank you

Hello all,I’m using NUCLEO F302R8 and IHM08M1 for motor control. While the motor runs, it gradually heats up to around 85°C and draws more current than its rated value in no-load conditions.while using the IHM07M1, the motor's heating seems normal, but the board temperature rises significantly.What could be causing this issue?

Hi,I'm trying to drive a Maxon 574741 BLDC motor with hall sensors, using your STEVAL-SPIN3204 evaluation board. I have installed MC Workbench, STM32CubeMX and the STM32CubeIDE. I'm rather new to motor control and the parameter setup for my motor in MC Workbench is a bit tricky.I finally am able to run the motor with Motor Pilot and the motor is running quiet and with ease, but I cannot seem to control the speed nor the direction of the motor!There is a potentiometer on the SPIN3204 board but I'm not sure what to do with it. If I activate it in the MC Workbench and then try to adjust it while running the motor, it will cause the motor to change direction in a microsecond and then I get an over voltage error. Even the smallest adjustment on the potentiometer will result in the above.The RPM meter in Motor Pilot shows an RPM value that might be true, but I cannot change it. The "handle" below the meter, "Speed Reference", is moving of its own and if I try to change it manually nothing ha

Hello,I have a custom motor control board and have so far been using MCW 5.Y.4This is my Amplifying Network using internal Op-amp gain of 4x and I just have external resistors R1, and R2. The resistors R4 and R5 are internal as you well know:Now I am migrating to MCWB 6.3.2 and am starting configuration from Inverter Board EVLSPIN32G4-ACT as I had done before.However, in Current Sensing, I noticed that:1.) Channel W is connected to OPAMP2, but I believe that doesn't change anything since my board has same resistor network for all three op amps and I understand that channel V will be inferred from the two other channels2.) Internal PGA Gain of 4 (600mV) is not an option, even though this MCU has that as an option and previous firmware allowed that as you can see form the screenshot. Is this just a bug in the system, and can I simply change it manually in the code? I designed our board based on a gain of 4 so I really need that to be the case.3.) There are no inputs for the external netw