STM32 MCUs Motor control

Hi everyone, I’m using the X-NUCLEO-IHM08M1 with the g474re core and a BL23E33-01D-04RO motor (which reaches 4000 rpm).I want to use FOC and the motor’s internal encoder, so I’ve made the hardware modifications described in the IHM08M1 manual and those also required by MC Workbench before code generation. I have therefore set the main sensor to the encoder and the auxiliary sensor to the sensorless PLL+observer.In STM32CubeIDE, the motor runs smoothly and the speed is correct, but at low speeds (below 60 rpm) it freezes and sometimes lags... I have no reported firmware errors. I don't have any load connected to the motor (yet).What could be causing this? PID? I can provide screenshots of the signals you want; I’m using CubeMonitor. PWM: 16kHzSW dead time 850nsRegulator execution time: 63us (1 PWM) - three shuntGain: 5.18Bus voltage divider: 19.17Quadrature encoder:average FIFO depth = 16 Input capture filter duration = 0.75 usPID: autocalculate Kp & Ki for both current and speed re

Hello,I am working on a custom FOC Inverter Board.  I am trying to assign the pins for current sensing, but I keep getting warnings.  I am using an STM32G431CBT6 MCU, and I completed all the other pin assignments without issue.  Here is the Current Sensing information:"Three Shunt AmplifiedCurrents using External Op-Amps"CURRENT_AMPL_U -> Assigned to PB14 ADC1_IN5CURRENT_AMPL_V -> Assigned to PB12 ADC1_IN11CURRENT_AMPL_W -> Assigned to PB11 ADC12_IN14It looks OK in the board designer application with no warnings, but when I try to generate the project in Motor Control Workbench, it gives me the following errors: I cannot find any documentation on the list of warnings/errors.  How do I correct this?  Or can it be ignored?

Subject: MC Workbench 6.4.2 — Custom Power Board JSON: 'No algorithm available' and missing connection paths errorDear ST Motor Control Support Team,I am writing to request help with creating a custom power board JSON template for MC Workbench 6.4.2.I have a custom BLDC motor control board using the TI DRV8316CT 3-phase integrated FET driver connected to a NUCLEO-G431RB (STM32G431RB). I have created a custom power board JSON file and placed it in the boards/power/ folder, but when I select it in MC Workbench I get the following errors:1. "Mandatory Phase Voltage Generation feature is not defined or there are not connection paths between hardware signals and relative MCU resources for the feature."2. "Mandatory Current Sensing Feature for FOC/HSO algorithm is not defined or there are not connection paths between hardware signals and relative MCU resources for the feature."3. "No algorithm is available for this hardware configuration."My hardware configuration:- Control board: NUCLEO-G43

Good afternoon,I am working with the STSW-TTM005 example for a resolver-equipped motor and encountered an issue:Link: STSW-TTM005 | Product - STMicroelectronicsThe motor does not rotate, but instead oscillates between windings.In sensorless mode, the motor rotates correctly.During debugging, the resolver angle appears correct.I tried changing that setting:#define RESOLVER_ANGLE_OFFSET_DEGREE 185.0f // Angular offset in electrical degrees between the resolver and the rotor's magnetic flux, but it didn't workCould you please clarify which resolver-equipped motor was used to validate this solution? My setup is as follows:Control board: NUCLEO-G431RBDriver board: based on DRV8353Resolver board: STEVAL-TTM005AFirmware version: 5.4.8Motor specifications: PMSM with resolver, 20 poles, 24V DC, 67A peakI would appreciate guidance on whether my configuration is compatible and any recommended adjustments.Thank you for your support.Best regards, Anatoliy

Hi, I'm developing a board to control motors using FOC. For this, I will use the MC workbench tool to generate the code. However, when I describe the hardware in the shunt resistors section, there is no "in-line" option, only the low-side option, but my board only has them in-line and I can no longer modify it. What can I do in the code to be able to use the shunt resistors in this way?

Good evening, I am trying to use a P-NUCLEO-IHM03 pack.I have generated the project using the X-CUBE-MCSDK version 6.4.2 and STM32cubeMX version 6.17.0, built and flashed the project on the board. The problem is that as soon as I try to start the motor in ST motor pilot, I get a driver protection fault instantly, without any movements of the motor:I didn't touch any configuration and jumper of the board, but while I generate the project I get these warnings (I don't know if this coukd be the reason of the fault):Any help would be very much appreciated, Thanks. 

Hi everyone, I’m using MotorControl Workbench with X-NUCLEO-IHM08M1 and NUCLEO-G474RE and browsing through the user manual: file:///C:/Program%20Files%20(x86)/STMicroelectronics/MC_SDK_6.4.2/Documentation/html/pages.htmlIn my project (under the various headings in the left-hand section), there are a few settings that I don’t know how to configure, and I can’t find any explanation for them in the manual. I will list the parameters in question, grouping them by category.1) PWM Generation1a) What is PWM Idle state high side? And low?Should I set them according to what is written in the L6398? If it uses active high inputs for the upper side (HIN) and active low inputs for the lower side (LIN), I think I should set them that way, right?1b) How to set Charge boot capacitor duty and Charge boot capacitor time?I will refer to “AN5789 Considerations on bootstrap circuitry for gate drivers",but I ask you for advice on these two parameters (duty and time)2) Current Sensing2a)

Hi there,Im trying to get my STEVAL-PTOOL1V1 up and running with my motor, a Sofasco sDBS7025 with the following specs:3-phase BLDC7-12V DC operating voltage1.5A rated current11100 max RPM 4 pole 8 pins:PinFunction1V2W3U4HW5HU6HV75V08COMI have managed to get it operating by using the STEVAL-PTOOL1V1_6S_HL example project in the ST Motor Control SDK V 6.4.1 however I seem to have little control over the speed.I haven't been using the potentiometer feature of the STEVAL-PTOOL1V1 and instead been using the following functions:MC_ProgramSpeedRampMotor1(2000, 1000);MC_StartMotor1();and when wanting to change the speed, changing the 2000 for a different speed and rebuilding the project and programming to the board.However when I input a different speed e.g. 10000 there is no difference to the speed, observed by the current draw of the bench power supply remaining the same. I suspect I have setup the motor parameters incorrectly in the MC Workbench 6-step wizard but am not

hi, I created a project by the MCSDK, i tried running it as a C++ project, but im getting an error compilation that i cant solve:   ../../MCSDK_v6.4.2-Full/MotorControl/MCSDK/MCLib/Any/Inc/revup_ctrl.h: In function 'void RUC_Stop(RevUpCtrl_Handle_t*)': ../../Inc/mc_type.h:77:32: error: invalid conversion from 'void*' to 'RevUpCtrl_PhaseParams_t*' [-fpermissive] 77 | #define MC_NULL (void *)(0x0) | ^ | | | void*     it seems that there is a wrong casting issue. I tried to solve it in some fifferent wauys like: pHandle->pCurrentPhaseParams = (RevUpCtrl_PhaseParams_t*)(malloc(MC_NULL)); or pHandle->pCurrentPhaseParams = static_cast<RevUpCtrl_PhaseParams_t *>malloc(sizeof(MC_NULL));   but its not solving the issue. but when i tried to delete this line it keeps having the same error !!!!!! what could be the problem

Hi everyone! I am developing a custom inverter+control board and need to use motor pilot. Would someone please tell that apart from enabling UART TX and RX through Motor Control Workbench and wiring them, what additional hardware do I need for isolated connection to a PC?Thanks and Regards

Hello,I use the STM32 Motor Control Software Development Kit (MCSDK version 6.4.1). I created a new project with the STM32G474E-EVAL microcontroller board, the two IHM07M1 motor-drivers (power boards), the two modified X-NUCLEO-IHM09M1 adapter (connector) boards, and two gimbal 12V 3-Phase BLDC motors with encoder AS5048A. The project code was generated. By the way, I have not bought all the hardware yet. Our project is specific. For all microcontroller boards and their software, which I know, it is true that setting zero speed holds a motor's rotor in a fixed position. We need to accelerate two motors' rotors for 180 degrees and let them rotate by inertia for next 180 degrees. In this way, a rotor makes one full 360-degree circle path. It seems that the MCSDK Motor Pilot makes a rotor in a fixed position if the motor speed is set zero. Hence, we need to depower the motors while the rotors make the 180-degree path by their inertia. I doubt that the MCSDK Motor Pilot can completely

Hello,Here are a few things I need to clarify regarding the EVSPIN32G4 current measurement and the related MCSDK software:Referring to section 5.6.1, 5.6.2 and 5.6.3 of the UM2850, I believe that the topology using three standalone OpAmps presented in section 5.6.2 is not currently supported by MCSDK, is this correct?So, considering the 2 topologies presented in 5.6.1 and 5.6.3, is there a major disadvantage to go for the internal PGA solution compared to the first configuration which requires external feedback networks on the inverting side of the OpAmp?At the end of section 5.6.3, it is recommended to connect the inverting input of the PGAs to shunt resistors to perform differential current measurement in case of high current application, but I don't have the possibility to do it in MCSDK since only the "single ended" sensing type is available, what do you propose in this case?Thanks in advance and best regards.

Hello everyone, I am currently working on a fully isolated motor driver using an STM32G474RE. I need to interface the AMC1301differential output to the MCU in a way that ensures accurate measurements. What is the best approach to achieve this? Also in mc workbench app, MCU opamp -> ADC hardware variant for Current sense -> InternalOpamps -> Differential -> InternalPGA. Or I will make the diff to single like in other picture wich looks easier. Also looks same with design below.    

Hello,We are currently performing tests on stepper motor driver boards.We are using a NUCLEO-F401RE board, which works correctly with the X-NUCLEO-IHM14A1: the motor rotates normally using the interface provided by STSPIN Studio 2.0.However, while keeping the same NUCLEO-F401RE board and replacing the X-NUCLEO-IHM14A1 with an evaluation board based on the STSPIN948, we are unable to make the motor rotate. The motor produces a whistling and mechanical noise, but no rotation occurs.The following configurations have been applied       - J5 = 1       - J6 = 1       - J7 = 0In addition:       - Modifications to REFA and REFB have no effect on the motor behavior.       - Changing parameters in STSPIN Studio 2.0 does not seem to affect the board.       - Using an oscilloscope, we verified that the phase shift between signals A and B is correctly set to 90°.Could you please h

Hi All, For the project I am working on we are looking to standardize on the STM32H7A3 processor. I am current looking to setup a project in the ST Motor Control Workbench (v6.4.1) targeting the STM32H7A3.When selecting a board, there are only 2 H7 boards listed. Both boards contain processors that have a mix of M7 & M4 cores. The Workbench creates code for the M4 processor, whereas the STM32H7A3 has an M7 core.I have tried creating a custom board, but again the STM32H7A3 is not listed in the supported list of processors.Is there anyway to set up the ST Motor Control Workbench to generate code for the STM32H7A3?Or do I need to port code targeted at a different processor?If so, can someone suggest a supported processor that would be a good starting point for generating code that could be easily ported to the STM32H7A3?Does ST have documentation on how to generate code for a processor that is not directly supported by the ST Motor Control Workbench? Thanks for your time!&nb

The graphical representation shows an internal op-amp amplifying the signal entering the comparator's positive input.However, the STSPIN32G4 positive input comparator cannot be an op-amp output unfortunately and is limited to op-amp positive inputs - see Ref. Manual RM0440 ver 9 (Figure 168).This is misleading, because only non-amplified signals gets to the positive input of the comparator.   

Please provide a Linux version of MCSDK. ST already has CubeMX and CubeIDE for Linux and they also run on Java, so I guess it should not be a problem.Or even a better alternative, just provide source code for MCSDK examples in a git repository. It is very frustrating to obtain source code through CubeMX and always having to log in.

Hi,I’m experiencing a consistent issue with the STM32 Motor Control SDK:The first motor start attempt always fails with a MC_SPEED_FDBK faultAfter acknowledging the fault, the second (or further) start attempts work perfectly Observations:During the first start, there is no audible motor movementCurrent signals (I_q_ref / I_q_meas) look misaligned or not properly regulatedAfter the first failed attempt, signals stabilize and the motor starts normallyThe MC state is initially IDLEFault reported: 0x0020 (MC_SPEED_FDBK)Observations:During the first start, there is no audible motor movementCurrent signals (I_q_ref / I_q_meas) look misaligned or not properly regulatedAfter the first failed attempt, signals stabilize and the motor starts normallyThe MC state is initially IDLEFault reported: 0x0020 (MC_SPEED_FDBK)It seems like something is not fully initialized/calibrated on the first start, possibly:Current sensing / ADC offset calibration My Setup:SW in Release ModeTarget: Custom

EVLSpin32G0B1 bord Program &Tools.

Hello, I am using a B-G431-ESC1 board to power some BLDC motors. I have alrady used it succesfully to spin some 2 pole pairs BLDC using Hall sensors for speed control. I even managed to implement some code to stop the motor at every half rotation of the shaft. It worked flawlessly with this type of motor. Now, I tried connecting a different type of BLDC, still 2 pole pairs but thats all I know since I don't have the datasheet. The motor profiling part went as expected and it managed to calculate all the relevant properties of the motor. I saved it and implemented the Hall sensors as aux speed control for Hall profiling. The difference from the other type of motor is that this one has a 6-wire Hall connection. Using an oscilloscope, I found that the extra cable was likely for temperature, so I left it unconnected. However, I keep getting Pin not connected on the pin wher the same cable is plugged (the blue cable). Whether I put the blue cable on H1, H2 or H3, the board doesnt recognize

About EVSTSPIN32G4, I started the code generated by MotorControl Workbench 5. Y.3 normally.If you transplant the IIC configuration of the pre drive and enable PWM output, the VDS will report an error.After carefully reading the generated code, it is found that before PWM complementary output, the lower tube is opened for charging, and the output PWM pre drive or VDS protection is written. Is there a routine for STSPIN32G4 IIC to configure PWM output?