STM32 MCUs Motor control

Hi, I got the following warning after generating the code for evspin32g4:Description Resource Path Location Typearray subscript 1 is above array bounds of 'PWMC_Handle_t *[1]' {aka 'struct PWMC_Handle *[1]'} [-Warray-bounds] mc_tasks.c /xxx/Application/User line 831 C/C++ ProblemCode line on 831 is:CodeReturn |= PWMC_IsFaultOccurred(pwmcHandle[bMotor]); /* check for fault. It return MC_OVER_CURR or MC_NO_FAULTSVersions applications:motorcontrol workbench: 6.2.1STM32CubeMX: 6.11.0STM32CubeIDE: 1.15.0I did not added only code yet. Only thing I did yet is converting the code from c to c++. If I convert back the warning is still there after building. Could someone help me please with this warning? 

MCSDK 6.2.0 introduced erronous conversions from float_t to int16_t in:MCI_ExecTorqueRamp_FMCI_ExecSpeedRamp_FMCI_SetCurrentReferences_FThe bug persist in MCSDK 6.2.1. MCI_ExecTorqueRamp_F is implemented mc_interface.c.ftl /** * @brief Programs a motor torque ramp * * pHandle Pointer on the component instance to work on. * FinalTorque is the value of motor torque reference at the end of * the ramp. This value represents actually the $I_q$ current expressed in * Ampere. * Here the formula for conversion from current in Ampere to digit: * I(s16) = [i(Amp) * 65536 * Rshunt * Aop] / Vdd_micro. * hDurationms the duration of the ramp expressed in milliseconds. It * is possible to set 0 to perform an instantaneous change in the * value. * * This command is executed immediately if the target motor's state machine is in * the #RUN state. Otherwise, it is buffered and its execution is delayed until This * state is reached. * * Users can check the status of the comman

Hello,I am using MC Workbench v. 6.2.1. The function "__weak bool MCI_StartWithPolarizationMotor(MCI_Handle_t* pHandle)" is supposed to return true on success. But it is currently returning false. This function is located in "mc_interface.c" at line 422. Function is used in "void MCP_ReceivedPacket(MCP_Handle_t *pHandle)", which is located in "mcp.c" at line 223.This function calls the "StartWithPolarizationMotor" when MCP sends the command "START_MOTOR" and "START_STOP". In the case of "START_MOTOR" it expects a false return to be successful. But in the case of "START_STOP" it expects a true to be returned if successful. Since this is a weak function, i have replaced it in my own code. Just thought you should know so you can fix it in the next update. Best RegardsOle 

I need a stand alone library for acim open loop, or a working example, like acim example for stm8.Example in  workbench is very complicated for me 

Hi,if i want to use PWM out for my motor driver inverter complement of each other.Can i configure , HRTIM1_CHB1 for High & HRTIM1_CHB2 will be its complement Low.For motor driver as i need total 6 pwm channels.So in short HRTIM1_CHB1 for High & HRTIM1_CHB2 are complement of each otherAlso rest of the timers like HRTIM1_CHA1, HRTIM1_CHA2,   As these i am considering for my motor driver 3 phase bridge  Please advice 

Hello, in the code I generated using MC workbench 5 or 6, there is something wrong with the part of the code that calculates the phase current value.You can easily find it by searching in the generated codePHandle->PhaseAOffset >>= 3;PHandle->PhaseBOffset >>= 3;PHandle->PhaseCOffset >>= 3;I feel that the 3 here is wrong, it should be 4Because NB_CONVERSIONS is 16, that is, the PhaseAOffset, B, and C obtained by adding and summing the values measured 16 times. This can be seen from the following codeif ( pHandle->PolarizationCounter < NB_CONVERSIONS ){pHandle->PhaseAOffset += *pHandle->pParams_str->ADCDataReg1[pHandle->CalibSector];pHandle->PhaseBOffset += *pHandle->pParams_str->ADCDataReg2[pHandle->CalibSector];PHandle->PolarizationCounter++;}Thanks.

What's the maximum/minimum electrical parameters for the motors that can be used with the MCSDK?Especially the important parameters like winding inductance and resistance values.We're trying to get a motor to run that has a Stator Resistance of 0.011Ohms and an inductance of 8.1µH@1000Hz (manufacturer datasheet), so the values in the motor json are "rs": 0.011 and "ls": 0.0081.

Hello everyone, I ran into a problem when re-generating a project in a СubeMX.If I make some updates in the peripheral settings and generate a project in the mx cube, my build goes through without errors and warnings. But if I load this project into the microcontroller, it refuses to work and even debug does not work, I assume that it is a hardware fault.I use the latest versions of softwareWith first generation and loading everything works fine, but with repeated generation the project breaks.How can I solve this problem? I’m tired of creating new projects every time.The microcontroller is completely inoperative; communication through the motor; the pilot does not work as can be seen in the picture.and when debugging, if I click Resume, the debugging turns off  

Hi all!I'm currently developing my own motor control board and have encountered a problem with running the FOC algorithmI can’t understand how the motor should start correctly in sensorless mode. At the moment, when first starting, the program periodically accelerates and slows down the motor, and after several such attempts it abruptly stops it. After this, a large jump in current occurs, which leads to a drop in voltage and my three-phase driver goes into protected.If I check the motor in a profiler and set a small rated current of 2-3A, 12V.Then the motor starts and spins continuously.Can anyone help me understand this startup? Why is this needed and how to turn it off so that the engine immediately starts to gain speed without this check.At the moment I am a student at a technical university, I have only recently started working in this direction, forgive me if I am not competent somewhere.

Using a 2804 gimbal motor, and the specifications provided by the vendor are as follows.The parameters tested using the Motor Profiler tool are as follows.  The encoder uses MT6701, in ABZ mode, with 4000 CPR (pulse count and phase difference are normal upon testing).Workbench Settings1. The motor parameters are as follows (neither vendor data nor test data could resolve the issue, and increasing the torque was also ineffective).2. The motor sensor configuration is as follows (auxiliary sensors not activated).3. The parameters for the current sensor are as follows (after testing, the current readings are correct).4. The PI (Proportional-Integral) parameters are as follows (using system default settings).5. The I/O port settings are as follows (after testing, the voltage output, data reading from various sensors, and communication interfaces are all functioning normally).Phenomenon1. I can use Motor Profiler to run the motor.2. Switched

I would like to implement a feature，During motor operation，Increasing loads，By controlling the rotational speed，so that when the bus current reaches a given value, it does not increase any further，What should I do?

Where to download ST Motor Control Workbench?

I plan to start using the MC SDK, and I was ready to get a Nucleo-G474RE with a IHM16M1.But when looking at the motor profiler utility, I noticed that the combination is not supported. There is support for the IHM16M1 and the STM32G474 processor in the STM32G474E-EVAL, but not for the combination I'd like to use.II also checked in the firmware directory, but there is no hex file for my desired combination.Is there a way to build the firmware for the profiler? If not, any plan to support the combination? I really would like to avoid buying a different Nucleo board, as I wanted to use the opportunity to learn more about the STM32G4 family

Hi all. Today our custom design board just arrive and we begin to test. Our custom board controllinng via STM32F103RBT6 product and programmed through the Stlink programmer using Stlink Utility software. We have a problem about connection using COM port with pc.The issue is we cannot connect pc to 103rb chip using CP2102 (usb-ttl) converter module. After a few different module replacement we decided to attach oscilloscope to the RX and Tx pins of the MCU. After that we saw the usb-ttl module send 4 different byte to the 103RB , but 103RB doesnt respond any of this commands when we click to connect button on the workbench>monitor  tool. This seems wrong because all parts are soldered by pcb company and we also check the track of this signal. Also we tried couple of times with different generated codes but all acted same. So i decided to ask the reason behind of this.I will attach all code files including some oscilloscope screen shots and part of the circuit diagram. Motor

I set up x-cube-mcsdk least ver.6.2.1 workbench with a combination of nucleo-h745zi(motor control board) and x-nucleo-ihm08m1(motor inverter board).The pin configuration is the default setting.Where should I connect x-nucleo-ihm08 to nucleo-h745zi?

hi,    I set the charge boot capacitor time with 100ms and the duty with 50%. the picture is below， and I captured the waveform by the scope. low side (green,16V from drive circuit),high side (red, 3.3V from MCU). the low side boot time is 125us. why is not 100ms?    

I have a custom motor controlled with the b-g431b-esc1 that I have been able to run in position control mode without overcurrent protection. As soon as I activate overcurrent protection the motor goes in the fault state when I click the "start" of the motor pilot. The motor does not perform even alignement. I tried to change the following lines of code of `mc_parameters.c` file:```const R3_2_Params_t R3_2_ParamsM1 ={ ..... /* DAC settings --------------------------------------------------------------*/.DAC_OCP_Threshold = 4083,.DAC_OVP_Threshold = 23830, };```moving the `DAC_OCP_Threshold` to 4483 and the motor does not go in overcurrent anymore. I think that 4083 is generated from the MC_Workbench from the 45A limit of the board, but using the 4483 exceed the 4096 that should be the 12-bit DAC limit.The motor is powered with a supply limited to 5A. For this reason I think 45A current on the shunt resistors is hard to be reached. Am I missing something?Let me know,b

Hello,I would try to use  the IHM14A1 shield  and  for now i only have a nucleo F2 series . it seemed in the document that this nucleo is not supported , can somebody tell me if it can't works  or maybe with some modifications on the example code. thanks jerome

i use the p-nucleo-ihm006 board to run open-loop mode, it runs well in low speed; but when run in high speed, the motor not run and shake.would you give advice for run high speed in open-loop mode. 

Hi everybody,I was looking at the documentation for the MCSDK6 (great work btw), in particular to the Motor Control Protocol Suite section.Everything is well documented, however, I was wondering if is there any DLL available in order to facilitate the communication between a PC application and the microcontroller.Thank you,Andrea.

Hi everyone,I am currently working on controlling a stepper motor using a PWM signal. I want to dynamically update the speed of the motor using different ARR and CCR1 values. Controlling the stepper works fine until an uncertain amount of time when the PWM signal appears to disappear completely. I have read that something like enabling the preload register should help but this still doesn't fix my problem. Here is my code so far: #include "main.h" #define C #define F_CLK 24000000 uint16_t arr_from_freq(uint16_t freq){ return F_CLK/(freq*(TIM2->PSC+1)) - 1; } int main(void){ EPL_SystemClock_Config(); // Enable the GPIOA and TIM2 peripherals RCC->AHBENR |= RCC_AHBENR_GPIOAEN; RCC->APB1ENR |= RCC_APB1ENR_TIM2EN; // Set the mode of the GPIOA pin 5 to alternate function mode 2 GPIOA->MODER |= GPIO_MODER_MODER5_1; GPIOA->OSPEEDR |= GPIO_OSPEEDER_OSPEEDR5; GPIOA->AFR[0] |= 0b0010 << 20; // Disable the timer before setting the prescaler

Hello. I am just starting in the world of motor control with ST parts and SW, so please be patient with me.I have checked different motor control boards for BLDC, and some related documentation, and I found special interesting the AN5423.https://www.st.com/content/ccc/resource/technical/document/application_note/group1/f4/ad/38/39/04/99/46/11/DM00666970/files/DM00666970.pdf/jcr:content/translations/en.DM00666970.pdfIn the application note, it is mentioned the benefits of using inline-phase current-sensing instead of low-side or high-side current-sensing.I have checked some BLDC motor control boards that I have interested in using (X-NUCLEO-IHM16M1, X-NUCLEO-IHM07M1, STEVAL-LVLP01,  and several more...) and I noticed that they are designed to use low-side current sensing (1 or 3 shunt resistors).I would like to know:1) Why do most of the boards use low-side current sensing?    What are the technical and cost related reasons for that?    How that affect

Hello,   I bought two EVLSPIN32G4-ACT motor control evaluation boards and tried to setup CAN-FD communication between them.   Then I came to know it doesn't have a CAN transceiver IC(U3) populated on board. Image attached for your reference.   Can anyone tell if someone faced the issue similar regarding this. ST Team please provide help and support through the hardware and CAN-FD functionality with this evaluation board.   Regards Yash B

Hi All.​​Does anyone know about a simple sample code to drive bldc motor with sinusoidal control? ​I only want to know the way how to setting PWM and update the PWM output.​MCSDK’s output sample code is hard to use and understand, it take time. ​Something like the device peripheral sample code will suffice.

b-g431b-esc1 will be used to control the motor. The algorithm that dictates the speed will be ran on RaspberryPi 4. Since 3 'b-g431b-esc1' will be used, the easiest connection would be done with simple usb to micro-usb cable. These are the codes that have been used for communication. However, I am not able to confirm wether the correct information is being received by b-g431b-esc1.CubeIDE code:uint8_t rx_buff[10]; HAL_UART_Receive(&huart2, rx_buff, 10, 5000);if (*rx_buff == 10){         HAL_GPIO_WritePin(GPIOC, GPIO_PIN_6, GPIO_PIN_SET);} Python code (a computer is being used for communication at this point):from serial import Serialser = Serial("COM3", 115200)while 1:      ser.write(b'10) "COM3" is correct, and baud rate is correct. Since using huart transmit function, all the sent information from b-g431b-esc1 is seen on Putty.  All pins were checked and are chosen correctly. Main question is: Ho