STM32 MCUs Motor control

I have been trying to drive a 24V motor with sensorless FOC by using a NUCLEO-F303RE (as the MCU) and the BOOSTXL-DRV8323RS (as the gate driver with MOSFETs on board). For doing that, I'm trying to use ST's MC Workbench to generate code for the NUCLEO.I have tried many different parameters on the Workbench, specially for the start-up parameters, however, after programming the NUCLEO with the generated code, I'm always getting a Undervoltage Fault when I click on "Start Motor" and the motor just gives me a quick small rotation. What happens is that the motor draws a huge current which is then limited by the power supply which lowers its voltage (to maintain the current lower than the limit). The current limit is at around 5-10A which should be enough. I have tried increase the limit, and although the motor rotated more than usual, it quickly started to smell like burning.Additionally, I'm using all the default values of the DRV8323RS registers.I have attached some parameters of my MC Wo

Hey everyone,I'm currently enrolled in Electronics and Power Engineering major, and I'm super excited about my project to create a PMSM Motor Driver, which I'd utilize STM32 PMSM FOC SDK with the ST MC Workbench. I'll be interfacing the STM32F446 as the controller with a custom-made inverter (Power Driver).Right now, I'm in the research phase to figure out the best Power Board components and parameters for my application. However, I've run into a little bump - when I open ST MC Workbench, it asks me to choose from defined power drivers. I actually want to use my own custom power driver that I'll build. Can anyone provide guidance on how I can use a custom power driver board with the ST MC Workbench? Also, are there any tips I should consider when choosing the components to work best with my STM board and/or ST MC Workbench?I'd really appreciate any help or advice you can offer.

Hello.I am testing using MCSDK 6.2.0 on EVSPIN32G4 board.And we made a custom board by reducing the size of EVSPIN32G4.The problem is that a "Over Current" error occurs on the custom board.I think it's an Artwork problem.Can you give me a guide or how to check the problem?Regards

Hello,I'm using the EVSPIN32G4 Eva board and MCSDK 6.2The motor is a low-induction 1pole pair 45000rpm 24Vdc Power 160WThe motor should work with a current up to 6AIn the motor profiler I cannot enter a value greater than 4A otherwise I have Overvoltage error during profilingDue to this limitation I cannot use the blower up to its maximumdo you have any clues?The overvoltage error occurs also in the motor pilot.when the motor is running, a sudden variation of the speed cause the Overvoltage errorLast but not the least, the motor is spinning but it becomes hot very quickly Thank you for your help Emanuele   [VERSION]: Version of MCSDK 6.2.0[TOOL]: MC PROFILER, MC PILOT + EVSPIN32G4 Evaluation board[DETAILS]:Overvoltage error[EXPECTED BEHAVIOR]: to control the speed of a BLDC blower[HOW TO REPRODUCE]:set motor nominal current, apply a moderate speed variation 

HiI have a smal motor (GL30) connected to a B-G431B-ESC1.I have profiled the motor and I can make a project using the 6-step algoritme.I need the motor to run in the range of 100-300rpm (almost no load), but from time to time the smooth motion are disturbed and the the rmp fluctuate, just for 0.5-1 sec. If I run slow (less than 150-200rpm) it stop, and I have to restart it.Why is that?I tried to generate the same code using the FOC algoritm, but the motor will not start it just make som noise.I would like to see if the motor worked more smooth in this mode.Is there any stuff missing on the board while it is not working? How do I turn on "on-the-fly-startup"? I wandered why you have not implemented the potmeter interface on the B-G431B-ESC1 board. Br Johnny

Hi,In my project, I'm trying to operate a simple stepper motor. I would appreciate help with a basic driver.the hardware I use:STM32F401RE Nucleo, HM02A1 Nucleo, L6470 stepper motor  Thanks!

I have a hard fault on startup of my near clone of a B-G431B-ESC1 pcb.Generated the code using the latest version of MC (6.2.0). Code runs and waits for a start command from Motor Pilot. It then tries to start with a short burst of high current which is not what I expect, then stops on the hard fault.I enabled the 3 fault handlers, mem, bus and usage, then try and run the code. It stops immediately  on UsageFault_Handler I find an unaligned error reported. looking further via msp reg, pushed stack etc.  I find an assembly line"str.w  r5, [r12, #22]"This looks like it is storing a word variable into a location with 22 bytes offset.Going to the C code I getFOCVars[bMotor].Vqd = NULL_qd; Vqd is defined in a structure FOCVars_t, where it is 22nd byte and the var is a structure of 2 int16_t so 4 bytes long.I put an int16_y dummy, just before the Vqd var in the typedef to push into a 4 byte alignment, then test, and it does not fault there but goes further on to another u

HiHow to synchronize ADC triggering at the peak of the up-down counter ?ADC1 is triggered using TIM1 trigger out event, and TIM1 has center counter mode as aligned mode3. Thank you in advance !

I have loaded the ElectronicSpeedControl_ESC-G4 example onto the B-G431-ESC1. When I start the profiler it changes the code to be whatever it wants. I put in the Max current=5 Apk in the gui to be safe. If I limit the current on the power supply to 10 A or so and then run the profiler, the power supply will current limit and the Over Voltage fault will occur on the profiler about half way through the cycle while the motor is spinning. If I raise the current limit up, it blows the B-G431-ESC1 with an impressive display of sparks. This is ST Motor Pilot V1.1.5 - profiler after installing into non default location so that it can connect with ST-Link.What am I getting wrong here?

I am moving to MCSDK 6.2.0 and want to test the motor profiler new feature. [VERSION]: MCSDK 6.2.0[TOOL]: Motor PROFILER v1.2.4EVALSTDRIVE101 + NUCLEO-F746ZG + Custom board for adapter[DETAILS]: Fail to do motor profiling[EXPECTED BEHAVIOR]:  Able to do motor profiling even with custom boardAttached is the project The resistorOffset is not defined for the EVALSTDRIVE101, so I first do the offset detection. Measured value is approximatly the know motor resistor and resistor offset is therefore negative. Then I start profiling the motor but stay stuck with the message to increase (or decrease) the max speed. I have tried different value without success. I know that this Power board is not listed in the table 2 (list of described boards containing resistorOffset parameter) in the motor profile page. And this board combo was not compatible with motor profiler in the past. But should I expect to work with MCSDK 6.2.0 ? When I am injected the motor kno

Hi,[VERSION]: MCSDK 6.2.0[TOOL]: SDK Application Code: - single PMSM Motor- FOC- Sensorless Cordic - on STM32 G4- on the fly startup enabled- flux weakening enabled- speed controller[DETAILS]:We have a fan application with large mechanical energy and a very small bus voltage capacitor. So it happens by decreasing the speed reference in a speed controlled PI controller that the overvoltage is happening. If we use less accurate PI parameters this also happens if the fan swings over at the final speed ramp. So, there is nothing surprising here because the motor acts as generator in "brake mode".The motor SDK has only one brake mode to avoid overvoltage and this is the extra brake resistance that could be activated at a specific bus voltage level. Is this correct observed?The best solution for my specific application would be to short the motor winding's at low side or high side or maybe in interchange to get a good head extraction and "pump" the rotary energy in the IGBT Block and the mot

I tried everyting from motor pilot to try and start motor, workbench, and nothing made it move. I had to self program an algorithm that made the motor spin. But since I don't have enough knowledge I would like to have some basic algorithm (6 step or FOC I don't care - I have all the sensors) to make it move.When I ran an example file that was meant for SPIN3204 it did compile it (with optimization) but nothing happened)

Hello all developers. I have a wish for you to start developing. simplefocmini (drv8313pwpr) with stm32cubeide I understand the basics of using a 3 phase timer. By creating a 120 degree difference, I can make the motor rotate but it is unstable.And I want to design my own motor drive circuit. I’m looking for a possible example. I’ve tried many methods.I’m using an embedded microcontroller. stm32h750vbt6 I don’t use neoclue, I only study from videos. That there was an easier way but my boss didn’t support it. So I had to try even harder to get the results I wanted. thankbest regards

Can anyone tell me how to do to make work a board STEVAL-SPIN3204?I've tried many version of Motor Control Workbench, build the exemple for SPIN3204, for STM32cubeIDE, and for Keil V5... But it never works!!!Is there anybody who success to make work a board STEVAL-SPIN3204?

Hello,I have a EVSPIN32F02Q1S1 and I am attempting to communicate between the EVSPIN32F02Q1S1 and another device over SPI (Jetson Nano running Linux/Ubuntu). I was looking into using spidev to communicate but I cannot seem to find any details or information on any of the datasheets of EVSPIN32F02Q1S1 regarding the SPI interface. I know the EVSPIN32F02Q1S1 has a STSPIN32F0251Q chip on it but on the datasheet for the STSPIN32F0251Q I cannot seem to find any info on the SPI interface. I was wondering if anyone else was having this problem? Am I looking in the wrong location?I looked under both the STSPIN32F0251Q and EVSPIN32F02Q1S1 pages

Hello, I have a problem with running code, generated by motor workbench:Guess it is not hardware problem, because i can run another project on it. Error in final launch sequence: Failed to execute MI command:load C:\\Users\\tomek\\OneDrive\\Dokumenty\\st_workbench\\pls\\STM32CubeIDE\\Debug\\pls.elf Error message from debugger back end:Error finishing flash operationFailed to execute MI command:load C:\\Users\\tomek\\OneDrive\\Dokumenty\\st_workbench\\pls\\STM32CubeIDE\\Debug\\pls.elf Error message from debugger back end:Error finishing flash operationFailed to execute MI command:load C:\\Users\\tomek\\OneDrive\\Dokumenty\\st_workbench\\pls\\STM32CubeIDE\\Debug\\pls.elf Error message from debugger back end:Error finishing flash operationError finishing flash operation  Please help me :)

I just listened to the New STM32 Motor Control SDK update webinar.  It was very good but I have a question that didn't get answered.  Can you recommend a set of eval hardware and software for this app:Motor: 3 phase BLDCVoltage: 12VDC (or lower) minimum to 42VDC (or higher) maximumCurrent: 10 amps continuous with peaks to 15 Amps for at least 10s of seconds.It is a battery powered application so energy efficiency is important as is low speed control down to 10-20 RPM.  Encoders are fine but an encoderless solution would be great.

Hi, I was trying to use Profiler in Motor Pilot to find motor settings for the evaluation board (ESPIN32F0602S1). However, I found out that the current version of Pilot (V1.2.4 from MC Workbench V6.2) didn’t support the evaluation board (ESPIN32F0602S1). MC Workbench showed the error message, "Motor Profiler is available only in 3 shunt current sensing. Motor profiler is not available for the mcu.". ESPIN32F0602S1 only has one shunt current sensing.Is there a way to use Profiler with ESPIN32F0602S1?Thanks,

I found the zest and hso can be used in Mcsdk6.2.Can I desig n a new board to test it? Eric Zhao

In your last webinar about the 6.2 release of the STM32 Motor Control SDK I asked about this and I got the next reply:No native support is planned for SPI encoders. However, we have many customers doing this very thing. The FOC Scheme needs position data once every PWM Period. Getting that data into the algorithm as close to the mid point in the PWM period would be the key. You can work back your timing from there to take propagation delay into account. You want to remove as much jitter as possibleCan you please elaborate a little more how to achieve this? I guess I have to select a quadrature encoder in order to generate the code, and then what functions should I override?”I´m successfully reading the encoder value with interrupts. Should I use a timer to  sync this readings? The maximum sample rate of this encoder is 18ksps so I think I can have fresh position data every PWM period.Relatedhttps://community.st.com/t5/stm32-mcus-motor-control/feature-request-spi-encoder/td-p/

I am using the sensorless + PLL control scheme which requieres to pass a ramp a start-up. Allthough the motor runs smooth a start-up failure always occures at the final speed of the ramp. I tryed lowering the final speed to avoid this failure, but it keeps occurring even with speeds as low as 600 rpm. This is quite annyoing and I would like to omit this ramp-up procedure at the start.

Hi Zied,After waiting patiently for MCSDK 6.2.0, I was overjoyed when it was finally released.However, I could not get the motor profiler to communicate with my board. It seems to require a proper firmware to be downloaded before it can run. It does not allow me to select the correct boards even after the uart connection is done (although it instructed to "try to configure the board"). see attached screen grab.[VERSION]: MCSDK 6.2.0[TOOL]: Motor PROFILER v1.2.4[DETAILS]: Not able to choose any control nor power board[EXPECTED BEHAVIOR]: I could usually be able to select the boards and enter into "Start Profile"I saw from other posting, your suggestion to download .hex into the board first and so I had tried to use  NUCLEO-F302R8#X-NUCLEO-IHM08M1 3Sh#(6.1.2).hex from the MCSDK 6.2.0 folder. Once connected, it shows the boards, but I want to use CTM009v1, not IHM08M1. So, that is a problem. See attached 2nd screen grab.Thirdly, I had also used the Workbench 6.2.0 to create a new pro

Hi, I have Nucleo L476RG with IHM04A1 shield. Also i have JK42HS34-0404 stepper motor. My question is how i can connect this and run? I read a lot of documentation, but i cant run it. Any help will be appreciated

Picture 1 SDK 6picture 2 SDK 5.4.8 Hello,I want to drive a BLDC motor via IHM16M1 with the newly purchased nucleo-stm32f103rb board. But the control cart is not here. Old version SDKs are also available as XML files(f103rb). SDK 6 introduced the .json extension. And it can't generate code in older SDK versions.Can anyone help me drive the motor? 

Hello   I am designing a controller that will drive a 3 phase BLDC 0.5kW motor. I choose STM32G474VET3 to generate the signaling with external gate driver and some beefy MOSFETs for that.   The MCU has advanced timer controller, and for my application i went with TIM20, ch1, ch2 and ch4. I see they can generate "PWM Generation CH CHN". How ever i dont see how to generate those with proper phase shift for a 3phase motor.   Can you please provide me some guide lines how to generate 3 phase pwm that is properly phase shifted. Which settings in the Cube i should look in to. If you have any app note i take a look it would be appreciated.    Thank you    Mirza