STM32 MCUs Motor control

Hello,I am using IHM02A1 expansion board (on top of L073RZ), which has two L6470 connected in a daisy chain configuration. I cannot receive any data from the devices. What do you think the reason can be ?Below is the bus status of a reset and get param for register ACC (0x5) since its default value is not 0: 

I have a BLDC fuel lift pump that I would like to power using the B-G431B-ESC1 board.I have gone through the issues as described with the Y version of the µC, and can test the system using the motor profiler.This program is able to spin up my device very nicely, I never experienced such fluent running of the motor. This is a reference for us: we test a lot of different drivers on this motor.But, yes, the next step is play, which fails, the system does not seam to be able to take control over the motor. It starts to spin and then you feel/hear the controller loose the rotor rotations and just go up in frequency.With the MotorControl Workbench I have another problem: this test locks out on current, where I put in the right current for all components, I have the idea the original current limit is not adapted. Where do I control this?How can I grab the parameters that made the MotorProfiler application able to control the motor and use th

Hi ST CommunityI am using a default MotorControl setup with the B-G431B-ESC1 board and a BLDC motor with hall sensors. The project is generated using MC Workbench with default values. I am having a hard time to decipher the value provided by the function MC_GetPhaseCurrentAmplitudeMotor1. I am familiar with the conversion from the format S16A to Amps, but still get wrong readings. The amplifying network gain setup is also default with values matching the resistors on the board. The overall network gain is hence 9.14. When converting the value to Amps, I get values far from what I can read from the power supply. When setting up the motor (using values inherited from motor profiler) the nominal current is set to 3.29A. With this settings I can almost not run the motor with a "high" load (0.5+ Nm). I need to increase this value to 10A+ in order to archive a torque of ie. 2Nm. which on the power supply is requiring far less than 10A. This

Hello Friends and ST engineer.I am controlling BLDC motor using STSW-SPIN3204 firmware with Hall Sensor. But some functions I do not understand, please explain more detail for me.HAL_TIM_OC_DelayElapsedCallback: what is this function for? why we use output compare in input capture with hall sensor.MC_TIMx_SixStep_CommutationEvent(): @brief: Capture the counter value for which the hall sensors status changed and set the delay at which the HF_TIMx will change according to the new hall status value and hence new step.I do not understand this function for what? please tell more detail for meIf you have the detail document, please giveThank you so much.Best regards.

I've been developing motor control code on a Nucleo-64 G431 board (64-pin) but the target product will use a 48-pin G431. I'm trying to wrap my head around how I migrate my project from 64-pin to 48-pin.Unfortunately, the existing project is implemented using the STM32CubeIDE V1.2, which I understand may make the transition more difficult.Any and all insights appreciated!

Is there anyone here could show me how to find the break function or instruct me how to apply break the motor please? I'm using G431B ESC1. As from the Release Notes for X-Cube-MCSDK, there are couple of ways to use break in FOC: Dissipative DC link brake resistor handling;Motor phases short-circuiting (with optional hardware over-current protection disabling);However I can't find any docs or descriptions for these.I ticked on the Dissipative break option in the Motor work bench and then update codes, but I have not seen any changes on the updated .ioc file and codes neither. And I can't find the any of functions relate to break.Cheers, Phan.

Dear STM team, Here we have using STM32f405RG MCU, for the e-bike motor controller applications. The programmer is STLink v3. Now we face some stuck in the stage, what happens in the IDE, once am using debug mode it's going to hold in stack point place. bellow attached the image.could you please support.Kindly let me know what we do.and also kindly share the base layer code of BLDC Motor control(Trapazodial or Sinusoidal) Awaiting for your reply.

Hi everyone,I have a hobbyist drone motor with the following phase voltage plot. Can anyone recommend the preferred method of controlling this motor? Is (sensored) trapezoidal or sinusoidal control sufficient? Or do we have to use FOC control?Thank you very much!

I need a position & speed controller for a brushless DC motor with hall sensor and quadrature encoder over Ethercat (slave).Any suggestions of Nucleo board/Controller/Ethercat adaptor for prototyping purposes please?

Hi everybody.When i open "SDK5x - STEVAL-SPIN3201 - BullRunning.ioc" file (that is pre-compiled example FOC motor control firmware provided by ST), "can't add: motorcontrol files not found" fault message appears on my screen. I already copied Motor Control SDK library file into CubeMx reposity directory. But it didn't work.

Hi,for a project I would like to design a dual BLDC drive based on STM32G4 microcontrollers with FOC algorithm for both BLDC motors.In a first view STM32G431 with 64 pins and two STSPIN830 and 3 shunt current measurement seem to fulfill the project requirements. Unfortuneatly with the MCSDK I am not able to setup a configuration for the control software with the microcontroller STM32G431.a) What is the technical background that MCSDK is not able to setup a dual drive with STM32G431 for FOC?b) Which microcontroller should I consider instead? STM32G474 with 64 pins or 80 pins?c) Is it possible to use the internal Op-Amps for 3 shunt current measurement (with PGA) in the dual drive configuration?d) Can I configure a proejct with STM32G474 (128 pins) in MCSDK and run the project on a microcontroller with less pins?Best regards, Jochen

Hi,STM32 is working very well with the Windows application ST Motor Control Workbench Monitor. I want a interface document or manual for the serial communication which is happening between the STM32 and Control bench application. So that I can use the same communication protocol for master controller to interface with the BLDC driver controller instead of PC application.Regards,Nishanth M

Hi, NUCLEO-F303REX-NUCLEO-IHM07M1Maxon motor 496653 with 5.8:1 gear ratioMotor Profiler 5.4.4MotorControl Workbench 5.4.4STM32CubeMX 5.5STM32CubeIDE 1.4.0I have created a motor profile using the motor profiler and confirmed the hardware is working correctly. I have then attempted to create a position control project using the AN5464 as a guide. I have got to a stage where the motor doesn't rotate at all. I have tried to debug the code and I have realised that it gets stuck at the "while(MC_GetAlignmentStatusMotor1()!=TC_ALIGNMENT_COMPLETED){}" line of code. I have attached a PDF showing the value returned by the function. I have then tried to connect to the board via the monitor in the motor control workbench and it shows FOC duration and Software error as soon as the MC_StartMotor1() function is called. Does anyone know what's going on? Thanks in advanceKind Regards

Motor Profiler and P-NUCLEO-IHM03 does not work (time out every time).GBM2804H-100T Motor Specifications:Configuration: 12N14PMax Rotation Speed: 2180Test Current: 0.0099AMax Current: 5AWhich settings for Motor Profiler works with the P-NUCLEO-IHM03 ?

Hi,I have been struggling to run my motor at low speeds and I suspect the Hall Sensors are the limiting factor. In UM1052 I found the following line on page 36. "For speed regulation, there is absolutely no need to have a sampling time lower than the refresh rate of the speed info fed back by the external sensors; this becomes especially true when hall sensors are used while driving the motor at low speeds."I have a 2 pole pair motor, and I would like to drive it as low as 15RPM using Hall Sensor. Is this feasible? How would I determine the execution rate of the speed regulator?

Hi,I have a problem with STM Motor Control, I got Nucleo F446 and G431 and IHM08M1 motor driver with Maxon EC90 and T-Motor, with Hall sensor encoder. The problem is, when I set the torque it is hold to certain load. If motor load is greather than motor can carry, the controller reduces PWM duty, and the current and torque drops to almost zero. Is this normal behavior? Another problem is holding motor in torque control loop. I need to set a torque not only to move a motor, but to hold it in place (aka stationary joint), but when torque is set to only match load, motor instead of holding in place, with constant force it jumps back and forward. Switchig beetwenn phases. I managed to design a fix to the first issue inside the PWM_Curr_Feedback, but it is not the solution i want. I still did not solved second problem. Is this designed behavior of Motor Control?

We would like to use an STM32G4 to (sinusoidally) control 6 high-current BLDC motors, each with 3 digital Hall effect sensors, and each using 3x PWM Mode for control (in addition to monitoring the voltage across 1 or 3 shunt resistors on each motor for current sensing - we plan to use a DRV8323S driver and 3 CSD88584Q5DC dual MOSFETs for each motor). The G4 reference manual (RM0440) section 27.3.29, Interfacing with Hall sensors, suggests the use of an “interfacing timer�? to read the 3 Hall sensors, and an additional advanced-control timer (triggered by the interfacing timer) to generate 3 PWM signals to drive each motor. Thus, 12 timers, with 3 channels each, appear to be needed to drive 6 motors using STM32G4s. We are considering 2 possible solutions for this situation:A) We are using an STM32G474VE for a related board and are considering using the same MCU for this board if possible. In order to use a single STM32G474VE to control our 6 motors, we would need to use

i am confused how to write a code to drive the stepper motor selecting the 2 timers with interrupt method. By setting one timer = 100khz, and another timer = 3khz. i need to display one pulse after 33 counts each on my oscilloscope. can you please help me with it. I have displayed some code below. can you please say me the mistakes i have done and what i need to add to it to work. void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){ if (htim->Instance == htim2.Instance)           //100KHZ { pulse_count =__HAL_TIM_GET_COUNTER(&htim2); if(pulse_count == 33)     { HAL_GPIO_WritePin(GPIOA, dir_Pin, GPIO_PIN_SET);             //pin PA3  for(int i=1; i<=300; i++)  {  HAL_GPIO_WritePin(GPIOA,

I've got 2 units of B-G431B-ESC1 version Y batch B04 and been struggling for 2 weeks already. Tried all the hacks on https://community.st.com/s/question/0D53W00000HwV8RSAV but they are still not working properly. The latest and best tried so far was following @JA.1 (Community Member)​: Motor spin a little at the startup (beep sound), when I feed input PWM signal --> motor ramping up spin in about 2 seconds and then stops. Tried different PWM duty cycles but still the same. I've also commented out the esc functions and only used simple motor control functions (MC_ProgramSpeedRampMotor1(150, 3000);MC_StartMotor1();HAL_Delay(10000); ) --> the motor ramp up and stop almost th

I've tried numerous boards, with different motors and power supplies.I just can't seem to get it to work, neither using motor profiler or motor control workbench (using the example code).After reaching out to some other people that had the same problem, I was told that this is a problem using cards from batch "B04". Cards from batch B03 are supposed to work (still waiting for delivery).The datasheet states "LQFP48" package on the processor, but it absolutely looks like it's UFQFPN48 on my cards. Could this be the reason it doesn't work?

Hi guys,I am working on Motor Control and I need to set up Combined PWM and ADC trigger syncronize together.Last situation is PWMs working and ADC is trigered so when the ADC is triggered ,interrupt event is running in HAL_ADCEx_InjectedConvCpltCallback that I put in it Led Toggle what I see is trigger event is not runnning in every pwm period.Trigger event is running 1 time and no interrupt 2 times and again running interrupt.If I am gonna tell it in different way --> run wait wait run wait wait run ... Like that ,I am not sure drawing right but probably enough.Also HAL_TIM_TriggerCallback doesn't work._____-----_-----_______-----_-----_______-----_-----________-----_-----_______-----_-----___ PWM 1____-------_-------____-------_-------____-------_-------_____-------_-------____-------_-------___ PWM 2___--------_--------___--------_--------___--------_--------___--------_--------___--------_-------___ PWM 3-------------________________________

Hi,I am doing project on stepper motor using stm32f103 controller and I need to drive my motor using modbus.So i need to calculate acceleration , deacceleration and speed, distance and time and frequency of my motor using trapezoidal motion profile . But i am confused how to do it . can anyone help me with it please.Thank you

Hi EveryoneWhile generating the code, I get the following error and finally I get a "complated with errors" warning.It did not give such an error before. I faced such a problem the next day when I turned on my computer and created a new project.I deleted Cubemx and MCSDK and reinstalled the problem didn't fix.When I compile the code, it doesn't give an error.The code actually works properly when I run my driver card in shunt resistance mode.But I want to test with ICS current sensor and ICS does not run the motor properly in current sensor mode. I had used this sensor before and there was no problem.I installed and tried programs on another PC and it came out with no problem.I'm adding the log files of each.Thank you for your support in advance.RespectivelyShunt Mode - No ErrorICS Mode - No ErrorICS Mode - Complated w

I don't know what these numbers represent.

Hello!I am using a 2 pole 3 hall sensor BLDC motor. I am able to get it to spin at desired RPM using hall fbk as primary sensor. Unfortunately, sometimes the motor won't start: with STMStudio i discovered that if HALL 1 (one of the three hall sensor) is 1, I get instant Speed Feedback on the GUI and the motor won't even try to spin. Sometimes it does the same with HALL 2 and 3 but rarely. If at least two Hall Sensors are "1", the motor starts without problem. The thing is that it should be 100% sure that the motor starts. What can I do?I thought maybe there was a possibility to do a Sensorless(Obs+PLL) start (so in theory I can't have a Speed Feedback error) and then switch mid-run to Hall Sensor. Is it possible without modifying the MC framework?Any other idea?Thanks!P.S.: not the main problem but, for get the motor working I had to switch U and W phases, otherwise it won't start, just shake and abs