STM32 MCUs Motor control

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Hi, i've made a project called "propeller arm". This project is composed of a dc motor(controlled by a mosfet) and an IMU(MPU6050). I've used a complementary filter to measure the tilt angle and this works fine. For the throttle control i've used a library PID found on internet and works fine. When i turn on the motor the MPU become "crazy" and doesn't communicate with my mcu and im see on my oscilloscope the value of SDA(HIGH still) and SCL(LOW still). That situation is very strange and i don't know why.Some times this time happens even with the engine not powered. I've just buy a new MPU but that problem persist in both sensor.Thank's all for the replys. Best Regards Antonio.

STM32G4 + STDRIVE101 + STL7DN6LF3.Sensored and FOC Control.Never goes below a certain RPM; is it possible to go at slow speed or superslow speed using FOC?At startup the motor goes smooth if without load, instead, with load goes jerky.If you manage to block the motor the torque will rise and rise, when it unblocks goes very fast, trying to regain the missed spins.

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Hello,I have had a look over the B-G431B-ESC1 Layout Files and found that the High Side FETs are connected to V+ with a single Via.The brown layer is V+, the large red pad is where the FET Drain is connected.I can only see the single via i marked. The production files state the same.This via can only carry about 1A of current, so this is definitely a design flaw.Can you please check if there is a error in the design files I downloaded or if I am right.@Laurent Ca...​ 

I am currently using a x-nucleo-ihmo2a1 stacked on a stm32f401re and controlling one stepper motor. There is a set param function I am playing around with to change certain values the user sets in the code such as max and minx speed. I did the following in putty; "M1.SETPARAM.MIN_SPEED.20000" assuming this would ignore a command of running at a speed of 10000 and jump to the new min speed which is 20000. It doesn't seem to work and produces a grinding noise and moves in a slow rough manner. If I set the min speed to say 21000 or 19000 this issue doesn't occur, but there is also the second issue of a speed below the set min speed being accepted and used completely ignoring the set min speed. Any suggestions ??

Hi, I'm trying to use MotorControl Workbench for 6-step current driving motor control on EVSPIN32G4 (no speed control).Is it possible ? (I only managed to select six-step driving using custom extra.wb_def file but did not manage to have a project compiling for 6-step current driving).- Is the tool supposed to manage 6-step motor control ?- Is there another solution to manage it ? Maybe with STSW-PTOOL2V1 ?Our current plan would be to port STSW-PTOOL2V1 for EVSPIN32G4. Does anyone have another idea ?

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(Environment)MC_SDK 5.Y.3 + STM32CubeMX 6.3.0 with HAL + IAR EWARM 8.5​(What I found)In page 12, document UM2392, the current controller PI gains aredesigned as follows:​=========================================...​The transfer function of block "A" are expressed as:(12) A = Vbus-dc / 65536...​=========================================Then PI gains can be obtained from this A value together with the other parameters (L, R, B and cut-off frequency of PI controller). I verified the SDK-generated PI gains(in "drive_parameters.h") are exactly the same of what I calculated from the equations.​I found, however, circle limitation and space vector implementation tell a slightly different value for A.(a) In circle limitation, maximum voltage are limited to 32767(=max of 16bit-integer), which corresponds to the radius of the inscribed circle of space vector hexagon.(b) From (a), maximum modulation voltage in space vector PWM becomes (2/sqrt(3) * 32767), which corresponds to the vertex of space ve

hi i'm using a F401RE and a hmi016m1, using a brushless odrive motor, i'm using sdk notor control, i set motor type bull ranning, i left everything default the rest, but when i go to give the motor.start, the motor doesn't moves but makes a strange noise! what can i change?

i am using Nucleo-f401re and nucleo-IHM16M1 motor driver board to drive gimbal motor . i generate the code from motor control workbench tools.i have done a program with stm32 cube ide but the motor does not spin.i done with motor workbench tool it shows startup failure.

I want to detect zero crossing.I am able to read back emf with the pins provided on the board.I want to detect zero crossing using the bemf reading.I don't understand how to do it and what is the purpose of GPIO_bemf. 

I need to convert a project from SDK 5.4.4 motor code to 5.Y.4.My motor project started out on a Nucleo board with a 64-pin STM32G431 with an 8V driver board but my product became a 48-pin STM32G431 with a 5V driver. Because of this my *.stmx and *.ico projects have not stayed up to date. My CubeIDE project and source code IS my project and is in Bitbucket.Now I am having a technical issue with the motor control that indicates I need more resolution in the speed feedback. The source code affecting this is in the Luenberger Observer and sliding mode PLL which are not available in the 5.4.4 source code (my project files) but is in the 5.Y.4 source code. As a starting point I took my old *.ico file and "generated" new code to compare to my existing projects. The code generated did not finish compiling without error.Does anyone have some suggestions on what I might do?If this is not doable I'll need to lookat other means to improve speed resolution in my existing code project.If I could ge

I'm working on using an STM32F446RE board to control two brushless motors using a SimonK ESC (https://www.amazon.com/dp/B07NMJRJKJ?psc=1&ref=ppx_yo2_dt_b_product_details) (sorry I don't know how to shorten the link) now normally these types of products are on drone etc and are written to with some sort of radio receiver. I was wondering how I go about writing to this ESC to control a brushless motor with STM32F446RE

I am not sure that I am using the proper motor. Because, according to the setting in motor section, it should be PMSM and be controlled with FOC algorithm. Since I only know that this motor is BLDC, I dont know that if my motor is supported by this algorithm for controlling or not. I searched net and found out PMSM is a little different with BLDC.I will appreciate any helps. thank you

Hello,I am working on a motor control project. The position feedback is given by a motor resolver.The issue is that I cannot find the option for a resolver in the Motor Control Workbench, only Hall sensors or Encoder. Is there any way to go past this restriction for this use case, either through hardware or software ?Any assistance is much appreciated.Thank you

I've been trying to develop a C++ application which uses the C based MC SDK (would really be nice if STM would provide a supported wrapper). I'm getting:arm-none-eabi-g++ -o "nucleo_demo_y4.elf" @"objects.list" -mcpu=cortex-m4 -T"C:\Users\dustin\repos\wheel\nucleo_demo_y4\STM32CubeIDE\STM32F302R8TX_FLASH.ld" --specs=nosys.specs -Wl,-Map="nucleo_demo_y4.map" -Wl,--cref -Wl,--gc-sections -static --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -Wl,--start-group -lc -lm -lstdc++ -lsupc++ -Wl,--end-group c:\st\stm32cubeide_1.8.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.9-2020-q2-update.win32_2.0.0.202105311346\tools\arm-none-eabi\bin\ld.exe: ./Application/User/wheel_ctrl.o: in function `Wheel::WheelCtrl::GetParam(Driver::CANDataPacket*)': C:/Users/dustin/repos/wheel/nucleo_demo_y4/STM32CubeIDE/Debug/../Application/User/wheel_ctrl.cpp:62: undefined reference to `RI_GetRegCommandParser(MCP_Handle_t*, unsigned short)' collect2.exe: error: ld

(Environment)MC_SDK 5.Y.3 + STM32CubeMX 6.3.0 with HAL + IAR EWARM 8.5(Hardware)custom board based on F446RE + custom power board + Low Voltage BLDC motor with Encoder(Control Mode)Speed Control​(What I found)(1) speed calculation is not reliable[ ENC_CalcAvrgMecSpeedUnit() in encoder_speed_pos_fdbk.c ] Encoder direction and UP(overflow/underflow) count are used to calculate the delta.This algorithm lead, however, to an incorrect result in the following case:During speed loop (1msec), assume encoder direction has been up-counting so farThat is, speed is (+) and delta is (+) However, just when ENC_CalcAvrgMecSpeedUnit() is called, encoder direction could be changed to down-counting(+)delta and down-counting results in incorrectly adding encoder pulse numberThis case can happen when the motor is hunting around zero speed, including encoder alignment.=============================================================if ( directionSample == LL_TIM_COUNTERDIRECTION_DOWN ) {  /* enc

Dear MCSDK team,We met a difficulty using Hall sensors as our primary speed and position sensor.When setting a mechanical speed higher than UINT16_MAX / nb_pair_poles / 2 the value of hMaxReliableElSpeedUnit is overflowing in the Hall_Init function. It is a u16 and its value is set to max mechanical speed * nb _pair_pole * 2. This was creating a tricky bug on our application : our speed value was "saturating" at a value around 1600RPM because the hall mininmal period (MinPeriod variable) is set according to hMaxReliableElSpeedUnit. We will fix this on our side but it would be nice if you could integrate a fix in future releases.Best regards,Antoine

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Hello All,I am using STSPIN32F0 controller to run a BLDC motor at 1400 RPM. I am using ST Motor Control Workbench and IAR IDE for my project.Motor Design Specs:Rated Voltage: 36VRated Current: 10AmpRated RPM: 1400 RPMMy Motor Starts without any issuesTill the Motor is loaded up to 2 Amps, it works perfectly wellIf More than 2 Amp is loaded, the Motor fails to RUN and a SPEED FEEDBACK ERROR or OVER VOLTAGE ERROR is generated.What can be the problem? Need your support as soon as possible.Thank youRitul Shah