STM32 MCUs Motor control

I have a BLDC which works on 7.4V. and datesheet for B-G431B-ESC1 Discovery kit says it can support upto 6S.But what is the least voltage it can support?

Using the EVSPIN32F0251S1 board, I tried to use the example in the STSW-SPIN32F0251 library but I can't get 6 Steps commutation with Hall Effect sensors to build. Here are the steps that I have tried : Download libraryUnzip the fileGo Projects/EVALSTSPIN32F0H25-HallSensors/Applications/MotorControlOpen ioc file, and generete project for STM32Cube IDEOpen the cproject fileInclude Middlewares/ST/MC_6Step_LibInclude Drivers/BSP/*Following these steps, I tried to compile, modify includes headers but I still have issues of variables not being found.Any tips on how to correctly run the example from the library? Is there any paper explaining more in detail the software side of this board?Thanks,

I have registered and was trying to download X-CUBE-MCSDK-FUL. When I clicked on any of the versions (5.5.3, 5.5.2, 5.4.7) a pop-up window appears for me to type in various info. I was able to enter all requested info, except "application", which appears to be a drop down list but has no items I can select. Without making a selection, it would not let me proceed to download. Help?

I have problems with Bus Voltage Sensing on IHM042v1. I'm trying to get it to work with 2 motors, both using encoder. I moved ENC_Z/H3_B signal to pin PA6 and Bus Voltage Sensing to pin PB2(ADC2_IN2)/PB12(ADC4_IN3) (tried both) leaving ENC_A/H1_A on pin PA0. After these changes i have encoders working but I have problems with VBus sensing. My issue is that encoder signal (from pin PB5, encoder B/H2) is appearing on ADC pin so i can't read bus voltage when motor is moving. When motor is stationary i get proper voltage on ADC pins (~0.7V after divider which corresponds to ~12V bus). To confirm it is the issue with STM32 MC-SDK i created empty project in CubeMX with only ADC on those 2 pins active and it is working fine, I can read bus voltage on those pins and encoder signal on pin PB5 (without it leaking to ADC pins). I'm using library version 5.4.7. Can someone suggest where to look for possible bugs?

I am currently using the x-Nucleo-IHM07M1 (or P-NUCLEO-IHM001)development board to drive a brushless DC motor. I downloaded the en.X-CUBE-SPN7_v1.1.0 template program. I found that the program can reach up to 36000 rpm and then it can’t be improved, regardless of changing the PI.. Can this square wave template programs achieve uch a high speed? How to adjust, the following is my MC_Sixstep_param.h:

Hi..I am trying to drive an ACIM motor on a project with STEVAL-IHM023V3 using Nucleo STM32G431RB MCU, but in some cases when starting the motor, a phase explodes and Rshunt ,IGBT, driver ,(sometimes) Nucleo STM32G431RB are destroyed.I did some research on this problem and I came across two possibilities;1- According to the UM1823 documentation, in the Overcurrent protection part, the maximum allowable current of the shunt resistor is 7Arms when the voltage on the CP+ pin of the L6390 gate driver exceeds 0.53 V. According to BOM values, Rshunt=0.15 ohm 2W thereforeI shuntmax= (2W/Rsunt)^0.5 =3.651A<7A most likely the reason why Rshunt exploded and L6390 overcurrent protection not activated.2- I use the following function to start the engine;MC_ProgramSpeedRampMotor1((int16_t) USER_SPEED_VALUE,0);MC_StartMotor1();when user speed=1500rpmWhen I apply this, the motor cannot start under load and it draws excessive current and explodes everything..Can you help with this?project featu

Hi, I have few questions regarding ST motor control library and hardware/motor compatibility.I need to control two high speed / low inductance Maxon Motors (ECX SPEED 8 M Ø8 mm) using position control (encoder) . Is steval-ihm042v1 inverter board sufficient enough to control two low inductance motors with both very low and high speeds?Is it possible to use both encoder and hall sensors? I need position control but can't afford to allow motor to rotate once to find encoder index position.According to this thread HALL_EL_ANGLE & STOPLL_EL_ANGLE should superimpose. Is this the same with ENCODER_EL_ANGLE & STOPLL_EL_ANGLE ? If yes which parameter controls encoder electrical angle? Is it "Alignment Electrical Angle" in Start-up parameters? If no how to find out this value?Last question is about PID tuning. Using position control should i tune all three controllers (Torque/Speed/Position, in that order) or tuning Position is enough? Any guide/tips on tuning those? Should i tune them

Hi,as explained into the title, i am developing a firmware on this board which is stable. i have bought a new set of board and after flashed, the firmware becames unstable :unamused_face: Searching a reason why i have seen that the MCU revision is not the same: Y with my first board set on which the firmware is stable, X with the second set giving unstability. Please what is the problem ? what i need to adapt ?

(Environment)MC_SDK 5.Y.3 + STM32CubeMX 6.3.0 + IAR EWARM 8.5(Hardware)NUCLEO-F446RE + X-NUCLEO-IHM08M1 + Low Voltage BLDC motor​(What I found)By CubeMX, SysTick NVIC priority is configured as Priority Group=3bit+1bit, PreemptPriority=4, SubPriority=0At main(), HAL_Init() and SystemClock_Config() implement the above configuration, then I can read the same values for their registers.Right after the above code, however, MX_MotorControl_Init() calls HAL_SYSTICK_Config(), where SysTick priority is set to 15, PreemptPriority=7, SubPriority=1(Question)Is that a defect or am I doing something wrong in configuration & code generation?If a defect, is it good enough to add HAL_NVIC_SetPriority() for SysTick in MX_MotorContorl_Init()? Or removing NVIC_SetPriority() in SysTick_Config() would be better? SysTick initialization code looks a little messy.

I am using timer 4 in STM32G431 to read hall sensor input and trigger interrupt when high ..Above is my setting.void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim){ if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1) { _hallA = HAL_TIM_ReadCapturedValue(htim,TIM_CHANNEL_1);    if(_hallA != 0x00U) { TIM1->CCR2 = 40000; }    else    {      TIM1->CCR2 = 10000;   } }I check for if my hallA is equal to 1.The interrupt gets triggered and sets CCR2 value to 40000.but when i change my hallA value to 0,it does not change the value of CCR2(CRR2 has contant value of 40000,whether hallA is 1 or 0)I want to change the value of CCR2 ,depending upon the hallA value.I don't understand what setting is wrong?

I'm using the P-NUCLEO-IHM001 (Nucleo-F302R8 + X-NUCLEO-IHM07M1 + BR2804-1700KV-1) pack, with MCSDK-v5.Y.2 and CubeMX - v6.3.0 with default settings.The project loads into the MCU and the motor spins at some speed when pressing the user button on the Nucleo board - i.e. all is well. However, when interfaced with UART, and using the ST Motor Pilot, then the state machine goes into FAULT_OVER state with error message "FOC duration".What does this mean and why do I get this fault ?BTW, the behaviour of the motor when leading up the error is different every time the state machine is reset (i.e. after fault is acknowledged) and entering "Run" mode ( i.e. pressing the "Start" command). Sometimes it goes right back into fault and sometimes it ramps up the speed - seemingly going into FOC mode. I.e. the behaviour is not deterministic.

Hello,I finally have my 70W 6PP BLDC motor running after lots of digging around the forum.I am using hall sensors (with unknown placement offset) and configured the board hard and software-wise (remove jumpers JP9-11 and close JP5-7).Unfortunately I can not get the motor to run properly on slower speeds.When going below ~500rpm, the motor starts to stutter and make a loud "whistling" noise.I tried changing the electrical placement offset in 10° steps and it got a bit better, but not 100%.Edit: The reliability of the RPM gauge-graph is flipping between 200 and 800rpm when setting the speed to 500rpm.When running at 1000rpm it is between 980 and 1020 (which is completely acceptable of course).I know those information are vague - but does anyone know what might be the cause of this?Many thanks and best regardsChristoph

Hello, does anyone know the correct procedure to tune the PI parameters for the ST FOC motor control solution?My configuration:ST Motor Control Workbench v5.Y.3ST Motor Pilot V0.9.0 (or 5.Y.3 depending on where you read it)FW Package v1.26.1Not that is should matter, but I am using a Nucleo 446RE controller with the STDRIVE101 eval board with 48V supply.I am able to generate, build and load, I am using a BLDC with hall sensors. Everything works fine, I have some PI parameters where it runs ok.In the Motor pilot I see PI parameters for Speed, Torque, and Flux. I am interested in speed control for my application.I have noticed the altering the flux PI parameter and the speed PI parameters both effect the motor control.My questions is what is the correct procedure for tuning the parameters, again I am only interested in speed control. Do I tune flux first then speed, other way around, both at the same time, just one and not the other, etc...?Maybe someone know of an application note or yo

Hi, I use B-G431B-ESC1 board and Motor SDK 5.Y.3 and am trying to determine the phase current for my application. I am calling the functionI_Phase = MC_GetPhaseCurrentAmplitudeMotor1 ();but when the motor is running and the current is almost zero, the function returns a large value. About 2600 units. Could it have something to do with the polarization scheme. In the B-G431B-ESC1 board, the polarization voltage is 2.057V, which is more than 1.65V.I also noticed that 2.057V is 2553 units in a 12-bit ADC, although this may not be necessary and the problem lies elsewhere.In any case, I don't understand why I get a number around 2600 at almost zero real current.I have attached a link to a similar question, but there is no answer there.https://community.st.com/s/question/0D53W0000081i95SAA/calculation-of-the-motor-current-using-the-motor-control-sdk-function-mcgetphasecurrentamplitudemotor1

What I need to do is implement a command line interface over that serial port for factory configuration and settings controls. When I add printf() calls to the while loop in main I don't see my messages on the virtual COM port of my Discovery board. In my final board there won't be an embedded ST-Link so I will be using the physical serial port.

Dear Community,In order to test the STEVAL-SPIN3204 kit, I installed the software environment as below:Latest Java updatedLatest Keil MDK-ARM Latest IAR EWARM Latest STM32CubeMX Latest ST Motor Control SDK 5.4.7 Firmware Package Version STM32 FW V1.11.3 and recommended STM32 FW V1.11.2 I tried anything any combinaison but the problem remains: when I click to "Update" the project "6Steps_STEVAL-SPIN3204" through the "Project generation" screen as recommended, nothing happens after a long time and nothing is generated; I have to click "Cancel" to exit. Can you give me your opinion if something can be wrong in my procedure or your instructions please? I am sure that it is just a little thing blocking...(on the picture, the Firmware Package Version is now installed but the result is the same)Thank you in advance.Best Regards,Julien

Posted on October 24, 2014 at 14:38Hi Gigi, my application uses two insulated current sensors. In this configuration, STMCWB does not allow me to enter the maximum duty cycle (Control stage -> Analog inputs -> Phase current feedback -> Maximum modulation). The inverter MOSFET drivers use high side bootstrapping, which requires me to limit the maximum duty cycle, otherwise a stalled motor could cause insufficient high side gate voltage. As diode bootstrapping is the most common way to provide floating high side driver supply, almost all power stages will require duty cycle limitation. However, STMCWB grays out this field and forces it to 100%. I currently help myself by overwriting the setting manually in the right header file (e.g. #define MAX_MODULATION_95_PER_CENT), hoping this has the desired effect. It would be great if this value could be made changeable STMCWB in all configurations. Regards Frank

Hi, I am using NUCLEO-G431RB+X-NUCLEO-IHM16M1+MototControl Workbench 5.Y.3 to control a sensorless BLDC motor. The motor could maintain nice torque when rotation speed is above 10,000RPM~40,000RPM. However, when RPM was decreased to around 1000RPM, the motor will stop rotate when it touches a surface (i.e. any tiny friction could stop the motor) . Is it possible to maintain torque when the motor's rotation speed is pretty low (near 1000RPM?

According to my washing machine project, I filled in the application form correctly and in detail, but failed every time. Why?

Hi, NUCLEO-G431RB + X-NUCLEO-IHM07M1MCWB 5.Y.3 + STM32CubeIDE 1.7.0Maxon motor combination: 200142 + 166935 + 673026BLDC motors are supposed to be "silent" however this doesn't seem to be the case when I attempt to drive the motor with the combination above. I have noticed the amplitude of the sound increases as more torque is requested, I have then tried changing the torque PIDs and they seem to make a difference but not completely solve the issue. PID tuning helped to reduce noise from very loud to loud. The motor itself is fine! I have used the Maxon BLDC controller and it is completely silent with that. Thanks in advanceManpreet Singh

Hi all,I want to start ​using ST micro controller for motor controller application using FOC, encoder based.I want to know which STM32 evaluation board I can buy?Also please suggest me what are the other motor controller softwares I can download for free or I need to develop from beginning. Please help me, I want to start using ST.​

i would like to run 3 BLDC motors out of the STM32.  Are only TIM1 and TIM8 the only advanced timers available? is there any part that has 3? We use the comp output 3-phase PWMs with success driving 1 or 2 motors, but now we need to drive 3 and don't want to use 2 controllers.

In order to actuate a gripper prototype, I decided to buy a BLDC motor from Maxon (EC-32 flat), and an evaluation board to drive it (STEVAL-SPIN3204, then STEVAL-SPIN3202).After setting up the hardware connection with the STEVAL-SPIN3204, I manage to launch the example that was presented in MC workbench. The result was a motor not spinning, vibrating, and the program stopping after a few seconds. After a lot of time wasted in trying to get things working by twicking in the monitoring window, I decided to buy another board (STEVAL-SPIN3202) that was actually compatible with MC Workbench. Setting up the hardware again, and figuring out the jumpers thingys based on the obscure documentation of the board, and being able to finally create my own project on MCW, I try to hopfully launch the compiled bin on the board, but nothing. On top of that, impossible to even connect the board through UART to the monitoring window. So now, I am kindly asking for guidance on how to actually set up PROPER

MC WORKBENCH HAVE ACIM EXAMPLE USING STM32G4. I want to convert it into STSPIN32F0602

Dear ST MCSDK team,We are using MC SDK 5.Y.2 and have a conflict between our custom ADCs drivers and ASPEP protocol. Aspep init the UART that use DMA and conflict with our DMA usage with ADC.We can't find anywhere to disable ASPEP / MCP Protocol in the Motor Control Workbench ?We can't either find a place to change it's configuration (using MCP over STLNK).Are we missing something ?Best Regards,Antoine