STM32 MCUs Motor control

I recently purchased the FOC motor development kit, and am learning to use it to control BLDC motors.  Disclaimer: I am totally new to STM32 hardware, but I have experience developing with both Arduino and esp32 in C/C++.  Any good sources for getting started with this hardware to run BLDC motors would be much appreciated.MCSDK 6.2.1Control Board: B-G473E-ZEST1SPower Board: STEval-LVLP01Motor: MOONS BLDC R57BLB50L2Problem: I am able to run my motor in Hall Sensor Speed sense mode, but am unable to run in any sensorless mode.  I am able to generate code with Workbench, compile and upload with cubeIDE.  I am able to connect with ST Motor Pilot using the MC_FOC_SDK GUI.  Hitting start/stop changes status from IDLE to RUN, but I get no motion from the motor.I am thinking the problem may be in the current feedback.  I get erratic speed feedback (in the ranges of +-20k rpm).  I have tried selecting both the internal and external op-amps in MC Workbench with

I am now trying to use MCSDK 6.2, as, while getting anything to work at all was much more straightforward in 5.4.8, that one gives me, on code generation, weird java xml parsing errors (from MCSDK-installed XMLs).In MCSDK5, a profiled motor, once saved, would turn up in the WorkBench as a selectable motor for a new project.That's not the case in 6.2. So I saw the "import motor" button - but it dismisses the previously saved profiled motor .json file (with Profiler of 6.2) as wrong format.According to what I can glean from here:https://wiki.st.com/stm32mcu/wiki/STM32MotorControl:STM32_MC_Motor_Pilot_-_Start-up_guide This is how it should have worked, except I did not perform a Hall test, as I have no hall sensors.Apparently not.The saved .json from the 6.2 Profiler looks like this:  { "BEmfConstant": 1.4652035236358643, "compatibility": [ "FOC", "sixStep" ], "description": "maxon PMSM motor", "friction": 6.5, "hardwareFamily": "MOTOR", "id": "maxon_with_ihm16m1#2

I have STM- STEVAL- CTM011V1A motor control unit, i found firmware package for the control from the STM source.. but for the configuration file called “STEVAL-CTM01xV1 1shunt_FOC.stmcx�? is missing in this folder.. here i will attach the document and required files and software, someone can please troubleshoot the issue

The wiki documentation of the PhaseVoltageGeneration property minDeadTime says that if this property doesn't apply to a driver it has to be set to null.As we are using a driver that already provides automatic dead time generation (and which cannot be disabled), I disabled this feature by setting it to "null", however the Board Manager complained with following error message: Incorrect type. Expected "number".The correct way to disable this seems to be to set the value to "0" and not "null" as specified in the documentation.I recommend fixing the documentation accordingly.

Hey Everyone! I have a pretty ambitious project I have in mind. I will be making a robot using stm32f4. The stm32f4 will be controlling the arms, meaning all motor control will be on the stm32f4(most likely run freertos). So the first goal is to have a fully functional moving robot. The next goal is to integrate a lidar using a raspberry pi 4/5 or Jetson nano (I'm leaning towards the pi 5 since there are more libraries for it). So if the lidar sees an object, it will notify the stm32 to move left/right or whatever direction the lidar picked up.  So my goal is, what would be the best communication protocol between the pi/nano and stm32. Two, is there any kinematics libraries already built for the stm32 that could make this easier for me? 

 hello st community,I am experiencing issues while trying to operate the BR2804 1700Kv BLDC motor with the IHM07M1 motor controller and nucleo G071RB board. we are just using the software like cube mx , cube ide to genarate code . while using g071rb  with IHM07M1 the motor only rotates for a short duration (2 or 3 seconds) before encountering startup failure or speed feedback issues. what will be the issue , can anyone help me with this ,

I am making a BLDC motor controller using STM32G030C8t6. This microcontroller has a hall sensor sensing capability known as ‘Hall Sensor Mode / XOR Mode’. This generates an interrupt when any one of the three channels toggle. We are taking the timer period between this interrupts.This period value is used for the calculation of SVPWM (Space Vector Pulse Width Modulation). Using this value, we are calculating the angle within sector. While debugging, we found that the motor vibrates slightly during the motor startup, So we are getting improper period values. The blue line is the period value, and green is how it should have looked according to motor speed. As in this image, due to vibrations during the initial stage, we get multiple interrupts, this messing up the period values.This is the part of code where we are measuring the period value.// Function to measure the period of a hall sensor signal void getMotorPostion(){ // Check if it's the first capture if (0U == Motor.FirstCap) {

I tried searching for documentation to help me Calculate Current from set reference current in dpp unit.Can anyone kindly give simplified explanation on how to convert current from dpp to Ampere (DC) ?For the purpose of calculation..Or share a good document source.Also help me estimate Torque output from any of the current unit when Kt or Ke is known.Thanks 

I am experiencing issues while trying to operate the BR2804 1700Kv BLDC motor with the IHM07M1 motor controller and either the L476RG or G071RB board. we are just using the software like cube mx , cube ide to genarate code . while using L476RG , all pin are matched with IHM07M1 but even after changing some values in mc workbench , the motor only rotates for a short duration (2 or 3 seconds) before encountering startup failure or speed feedback issues. Additionally, the motor sometimes produces a struggling noise during the startup process.

We are working on a custom inverter board based on a B-G431B-ESC1.As we want to have the option to choose between Single-Shunt and Three-Shunt variant for current sensing, I implemented both features as hwVariants, according to the documentation.See the following snippet: { "name": "CurrentSensing", "type": "CurrentSensing", "tRise": 45, "hwVariants": [ { "type": "ThreeShunt_AmplifiedCurrents", "help": "DRV8323RS internal current amplifier is used", "signals": { "CURRENT_AMPL_U": [ { "name": "PA1", "help": "", "cost": 0 } ], "CURRENT_AMPL_V": [ { "name": "PA7", "help": "", "cost": 0 } ], "CURRENT_AMPL_W": [ { "name": "PB0", "help": "", "cost": 0 } ] }, "shuntResistor": 0.001, "amplifyingNetworkImax": 40, "amplifyingNetworkVm": 3.3, "amplifyingNetworkPrating": 1.4, "offsetNetworkAttenuation": 0.571, "opAmpGain": 16, "polarizationOffset": 2.057 }, { "type": "SingleShunt_AmplifiedCurrents", "help": "DRV8323RS internal current amplifier is used", "

Hi Community,I just start desiging a AC induction motor driver with motor control workbench 5.Y.4.But I have some problem about it. I can not generate code. I had try many ways but always same result. Its finished with "Comleted with errors" message. I am using https://wiki.st.com/stm32mcu/wiki/STM32MotorControl:SDK_AC_induction_motor link. I am sharing screenshot and log file.  Thanks for your all helps  

Hello guys, I'm looking to control an AC Servo motor with STM32f407- Discovery kit. There are a lot of resources for DC motor, but i couldnt find many for AC Servo. Can anyone suggest on how to approach or share me some resources? Thanks in advance.

Hello, I am using a G030C8T6 MCU with mcsdk version 6.2.1 and the latest version of cubemx to create a motor program, but with the G0 chip library version 1.6.2 and 1.6.1, it creates the bus voltage sampling incorrectly, and it is only correct if I am using version 1.6.0.@cedric H

When disabling Bus Voltage Sensing and Temperature Sensing in MC WB 6.2.0 the MC Application results in HardFault. After some debugging I found that the last release of the MCSDK has made a minor change to RCM_ReadOngoingConv(). This means that when RCM_handle_array[i] is null, it is still used as an input parameter to a function that tries to access its data member which causes a Memory Fault. I have attached a bug report document explaining the error. Furthermore I have also attached a PrtSc of the debug window and a file containging the STWB6 project (OBS: the project uses a modified STEVAL-SPIN3201 board with changed current sensing network)Hope this bug will correctedBest Regards Nikolaj T. L. 

Hi, I have an electric assist power steering column I have been working on building a control module for. It uses a 630w IPMSM motor with hall sensors and has a supply voltage of 12-14V DC. I have managed to get the motor to run with a G431-ESC1 and use an arduino to monitor steering sensor outputs and send a pwm to the esc. It does work but the motor is not producing enough torque for adequate steering assist. I assume this is because the G431-ESC1 is really not powerful enough to run a motor of this size. Can anyone recommend a product in the stm32 range that might be suitable. At this point I’m looking at the STEVAL-CTM009V1 but wondering if there’s something closer to what I require.Thanks, Tony

Hi there,I want to use a usart port to control EVSPIN32G4 board,start,stop,set motor speed,etc, where can i find those protocol or code，X-CUBE-MCSDK_5.Y.4 version.Thanks。 

Hi.. We are trying to control a 3-phase asynchronous motor. At first, I used Nucleo STM32G431RB MCU and STEVAL-IHM023V3 board to realize this project, as well as available sample code from ST Motor Control Workbench, version 5.Y.0 (ACIM-NUCLEOG431RB-IHM023V3-LSO_FOC) I have generated the code and the motor has run successfully. But this action only worked in "speed mode", while in torque mode the ST Motor Pilot V0.9.7 "speed feedback" always returns when I start the motor. Anyway, our company team made a board similar to IHM023V3 and added some things to it. then I uploaded the same code to the new board and it returned me the same error "speed feedback" . however, the power shown in the st motor pilot is about 800W, which is the case in the previous experiment, when the motor is unloaded, it consumes a maximum of 100W. You can see it in the video below.I tried to find a difference with the new board and IHM023V3, but I couldn't find all the elements are the same IGBT,Driver(L6390

Can you explain to me the difference between the features object inside the motorDrives object, compared to the standalone features object? Most object inside motorDrives make sense as a Feature of the motor drive itself, but not all.We're using the B-G431B-ESC1 board JSON for reference.For example the TemperatureSensing feature, what would happen if I put this into the standalone features object instead?Or vice versa, with the ElectronicSpeedControl feature, why is this in the standalone features object even though it is directly related to the motorDrives functionality?I cannot make sense of the logic behind this right now.

I'm having trouble understanding what the instruction below wants me to do..... It says: "Solder R47". -On which board?-Solder it where?-What value is the resistor?    

Hi, I have been working with the B-G431-ESC1 for some time.I profiled my motor with ST Profiler and loaded the .JSON file on Workbench and generated the code.My final goal is to be able to control the speed of my motor by sending a PWM signal to the motorcontroller, which more or less already works. But i have two problems at the moment:What could be the reason why my BLDC motor, which is in the RUN state (i.e. running without any problems), goes to the IDLE state after a certain time without any command being given? On ST Motor Pilot, I don't have any errors displayed that could guide me to the potential cause.how to choose the good sensorless startup parameters for our motor startup?  thank you for your suggestions. 

We're implementing our own inverter board based on a G431 controller. I'm currently going through all the required parts and I'm wondering how I am supposed to know the pins I can use for certain features.Example: motorDrives, feature: CurrentSensing type ThreeShunt_AmplifiedCurrents requires the signals CURRENT_AMPL_U, CURRENT_AMPL_V and CURRENT_AMPL_W.How do I know which pins of the MCU I can use for that? As these signals require the ADC periphery. Will the Board Manager check if I'm specifying valid pins? What about Alternate Function routing for design flexibility?What is the general approach for setting up a custom board in this regard? 

Hi Team,If anyone has, could you please share the application note for the Motor control Applications for NUCLEO-G431RB and X-NUCLEO-IHM16M1.If anyone has the block diagram of the FOC also, Please share 

Motor control workbench Version: 6.2.0STM32CubeMX Version: 6.10.0STM32CubeIDE Version: 1.14.0Controler: NUCLEO64-STMG431RBDriver: IMH07M1Motor: rs2205: very simmilar spec to Bullrunning motor (7PP, 0.1ohm, 0.01mh, etc....) Hi. I created a FOC app with my controller+driver+motor above.. When I try to start it, the motor spins up just fine, but I get a "speed feedback" error.-This is a profiled motor-The only changes I made to the application was to disable driver protection feature  HW setup:   Motor config:  Error: 

Hi,I don't understand the calculation for Auto Calculate Torque/Flux Kp & Ki in Motor Control WorkBench (Version: 6.0.0)Could you send me the calculation formula because I can't find the same results. (I looked in your different documents and I can't find this equation). I want to change these Kp/Ki because I have problems with some trajectories (overvoltage comes from PI Torque/Flux).Best regardsInformations :Motor brushless with EncoderMotor Control WorkBench : Version: 6.0.0MCU :STM32G431CBControl Board : B-G431B-ESC1Power Board : B-G431B-ESC1Algorithm: FOCControl Mode : Position ControlSpeed Sensor Mode : Quadrature EncoderAuto Calculate Torque/Flux Kp & Ki

Hello, I need help the product I mentioned EVSPIN32G4 I've been trying for a long time to find the pins on the board to control GPIO signals instead of SPI InterfaceI need to find these pins on the board:I/O control terminalGND Ground wireF/R Forward and reverseEN Start StopBK Brake ControlSV Analog inputPG Speed pulse signal outputALARM Alarm output+5V Speed regulation voltage output STSPIN32G4, this is the chip of the board found in EVSPIN32G4This is the link for the EVSPIN32G4: https://www.st.com/en/evaluation-tools/evspin32g4.htmlAnd that of the STSPIN32G4: https://www.st.com/en/motor-drivers/stspin32g4.html I use external microcontroller with firmware to control the motor driver its for cnc axes movement applicationRegarding the I/O control terminal I mentioned, I don't see that there are exactly the same as in the list I mentioned above, just maybe someone can help me find these pins according to the Block Diagram of the STSPIN32G4 Thanks for help!