STM32 MCUs Motor control

Hi,We have been using the X-NUCLEO-IHM11M1 driver to drive a BLDC motor. We were trying to read encoder values from the motor. The driver experienced short circuits on two occasions despite receiving sufficient voltage i.e. 3.5V to operate the BLDC motor and the fault LED pin failed to glow. What might be the possible cause for this short ?

Hi,I am making a project using stm32cubeide for BLDC motor with Hall sensor.First project generated using timer2 made for Hall sensor reading with Combined Channel XOR ON / Hall Sensor Mode option, motor is working correctly, interrupting reading Hall sensor position and setting correct commutation for the motor.This option works fine.While making next project using XOR activation (in CubeIDE) also reading Hall sensors interrupt, motor won't work correctly, it uses much more power, the work is not stable.Why while using XOR activation the motor will not work when in fact it is made for reading Hall sensors?Please give me some short explanation for the difference between those options?

Hello,With STM32F411E-DISCO, I am trying to obtain the RPM value by receiving data from the hall sensor of the BLDC motor. For this, I activated XOR On / HALL EFFECT Mode and connected the pins of the hall sensors to the relevant places.HAL_TIMEx_HallSensor_Start(&htim2);hall_out =  (int32_t)htim2.Instance->CCR1However, the data varies too much. I cannot get a constant or meaningful output, it can be 4000 at one moment and 2 at another.There is also a digital output pin on the ESC that can output from hall sensors, but I have not been able to read data from it.Can you help me a little bit about this? I've scoured the internet almost completely but I can't find an example or anything that can help and I'm a rookie in this subject.

Hello. I am currently doing R&D work on controlling a 1 pole-pair, 12V BLDC motor. The controller I have chosen for my application is the B-G431-ESC1, and I am using Motor Control Workbench 6.2.1 to configure my controller. Currently, I am running into several issues with the motor and driver. I have several faults that show up: over current, start up failure, and under voltage (rarely). However, when I do manage to get the motor running, it spins inconsistently at low speeds, vibrating vigorously and sometimes spinning in the wrong direction as compared to the motor pilot. It does spin better at higher speeds, but the current consumption is much higher than the no load current specified by the manufacturer, and it still vibrates quite a bit. Also, I can't seem to get the motor to spin at its maximum speed (13900 RPM). The speed I was able to achieve was around 6700RPM. I tried spinning the motor in both sensored and sensorless configurations. Both have problems. Motor profile

Hi, I am using STEVAL-CTM010V1 to drive the compressor. I am using Workbench 5.4.7 for dual motor control. I am able to run the Drive2(Fan motor). when it is running, I am trying to run the compressor. Immediately, communication is getting disconnected. What could be the reason? Please Suggest.  Thanks&RegardsVijay    

Hi guys,I am reading the timer dithering mode in the stm32 manual however I can't understand it very well.From my manual, the timer dither is for increasing the PWM resolution.According to my understanding, I can give the following example:Example: Assume I am using STM32F103(72MHz), and I config the TIM1's ARR register to 99(100-1) with prescaler to 71(72-1). The 10KHz(72MHz / 72 / 100) ware will output at that config.Now I want to change my PWM frequency to 20Khz, what I need to do is just change ARR to 49(50-1).With the dithering enabled, either the ARR value will change as "99-87-75-62-49" step by step, or change as "99-99-99-99-49-99-99-99-49-99-49-99-49-49-49-99-49-49-49-49-49...";With the dithering disabled, the ARR register value will change from 99 to 49 immediately.Am I right?BTW, can I let the DC motor work more smoothly by timer dithering?

Hey,when I use the EVSPIN32G4 without speed measurement the motor rotates normally. But if I use the encoder for speed sensoring the motor just vibrates.Motor: 4221g048bxthEncoder: ie3-1024Does anybody know how I can solve this problem?

Sharing the snippets of code related to UART from code generated using motor profiler, motor pilot and stmcube ideuint16_t motor1Faults;uint16_t rxbuffer[5] = {0};uint16_t flag = 0; HAL_UART_Receive_IT(&huart2, (uint8_t*)rxbuffer, 5);while (1){if(flag == 1){MC_StartMotor1();}else{MC_StopMotor1();}} void setMotorSpeed(uint16_t target_speed){static uint16_t previous_speed = DEFAULT_TARGET_SPEED_RPM;static uint16_t duration = 0;const uint16_t slope = 3000;if (target_speed > MAX_APPLICATION_SPEED_RPM){HAL_UART_Transmit(&huart2, (uint8_t*)"Target speed exceeds the max", 29, 100);return;}else{if(target_speed < previous_speed){duration = (previous_speed - target_speed) / slope;duration = duration * 1000;}else{duration = (target_speed - previous_speed) / slope;duration = duration * 1000;}MC_ProgramSpeedRampMotor1_F(target_speed, duration);previous_speed = target_speed;}} void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){HAL_UART_Transmit(&huart2, (uint8_t

Hey everyone. First time user and absolute newbie on ESC's and e-skates.Bought a FLIPSKY mini ESC 4.20 and I am not able to connect it to my PC. Nothing happens when I plug the USB cable and nothing changes on my Device Manager too. Tried to install the Virtual COM ports driver but, again, nothing changed. Tried to manually add the drivers to the COM / LPT ports and it did accept this install but with an error message. Not sure where to go from here and also not sure this is the best place to look for troubleshooting but, in all honesty, I am lost........... :( Thanks guysMiguel R.

Hello, I looked over the internet and couldn't find the firmware, even tried older versions of mcsdk, no example board of ptool1v1. In 2022 similar post was made that was looking ptool1v1 firmware and answer was redirected to the page that doesn't exist anymore.

Hi,We are trying to drive our 4v BLDC motor using the X-NUCLEO-IHM11M1 with the ST Nucleo board. The logic we implemented is,DELAYTIME-10ms ,FREQUENCY - 20KHz,DUTYCYCLE-50%static void PhaseZeroClockwise(void){HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_1);HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_2);HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_2);HAL_TIMEx_PWMN_Stop(&htim1,TIM_CHANNEL_3) ;HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_3);HAL_Delay(DELAYTIME);}static void PhaseOneClockwise(void){HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_1);HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);HAL_TIMEx_PWMN_Stop(&htim1, TIM_CHANNEL_2);HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_2);HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_3);HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_3);HAL_Delay(DELAYTIME);}static void PhaseTwoClockwise(void){HAL_TIMEx_PWMN_Stop(&htim1, TIM_CHANNEL_1);HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_1);HAL_TIMEx_PWMN_Start(&a

Hi, can i control a motor with Algobuilder? or the software is only used to visualize the data? 

For implementing our own hardware, I'm using the Board description of a B-G431B-ESC1 as a template.The "motorDrives" object declares some properties, like "maxRatedCurrent", "minRatedVoltage", "maxRatedVoltage" and "resistorOffset".None of those are described in the Motor Control Boards Description documentation.What are those properties for?

I WAS BOUGHT STEVAL_ESC002V1 DEVELOPMENT  BOARD FROM ST. I DONT KNOW HOW TO USE IT.( HOW TO GIVE THE PWM INPUT VIA EXTERNAL).AND ALSO ITS NOT HAD ANY INYERNAL FIRMWARE. I AM ALREADY  DOWNLOAD  STSW FIRMWARE .ITS A BINARY FILE.HOW TO I LOADED & IS IT SUPPORT STM32CUBE IDE.BUT USER MANUAL SAID IAR WORKBENCH 8.2.2 NEEDED. PLS GIVE THE TECHNICAL SUPPORT. I WANT TO RUN THE DRONE MOTOR (A2212/13T 1000KV) USING THIS BOARD

Hi, I am looking to try the 6 step commutation for a BLDC motor. I am using MC Workbench 6.2.0 however when selecting 6-Step, the EVALSTDRIVE601, and a nucleo G431, the BEMF sensing isn't detected and the BEMF feedback pins aren't listed in the pinout?Any ideas? Thanks

Hello STM32 Community,I am currently working with the STM32 MotorControl Workbench framework, specifically using the EVSPIN32G4 demo board. For development, I'm utilizing the STM32CubeMX and STM32CubeIDE tools.My issue lies with debugging. I'm attempting to use printf statements for debugging purposes through the ITM (Instrumentation Trace Macrocell) debugger interface. However, this is not working as expected. The printf messages are not being displayed.I'm wondering if anyone can shed light on why this might be happening. Are there specific settings or configurations within STM32CubeMX or STM32CubeIDE that I need to adjust to enable ITM debugging correctly?Additionally, I'm open to suggestions for alternative methods to output debug messages effectively in this setup. Any insights or experiences shared would be greatly appreciated!Thank you in advance for your help and support.Best regards, int _write(int file, char *ptr, int len) { (void)file; int DataIdx; for (DataIdx = 0;

Hi,I have done version control and CI-CD for large-scale C & C++ projects but I am not sure how to do this for the STM32-based tools and projects generated.For the Motor Control Firmware Development task I am currently assigned, I need to develop a similar system of version control (over bitbucket) and CI-CD.I know that there are STM32 CLI available but are there any good resources you recommend for doing this end to end?The project structure is a little different when generated from MC Workbench.I usually like to select the Makefile option but for MCSDK projects, this is probably not supported.

Hello Everyone,  I'm trying to perform a command for ACIM, I created the code generated by MotorControl Workbench 6.2.1 without any problems and I'm using the NUCLEO-G431RB kit..I'm analyzing the PWM signals on the oscilloscope together with a filter to see the sinusoids, so far it works correctly...What I noticed is that the V/F algorithm does not work as desired when I use the commands in the mc_api.c fileBasically I see that only the frequency is changed, not the voltage...But when I start from MC Workbench it works, only for initial voltage...Basically I can't change the voltage, only the frequency... what am I doing wrong, could you provide me with the correct function to solve this?Thanks  

Hi,I am trying to use EVSPIN32G4 for BLDC Motor Firmware Development. I want to use the existing APIs but have been having challenges.I want to write a client similar to Motor Control Pilot that sends & receives packets from the board. This client will first be implemented on a PC to communicate over UART that is configured with MCP in the MC Workbench. How to actually do this?I don't think the code for the Motor Control Pilot is Open Source or else there would have been examples.MC Pilot is using MCP & ASPEP to communicate with the board.I have been reading the documentation but not sure how to do it.

Hi, I am using B-G431-ESC to control a brushless motor. Using Arduino and simpleFOC, I am able to control the motor in open loop setup. When tried using hall sensors pins, i see that there is no voltage on 5v pin on the esc board. The multimeter shows no voltage across the 5v and Gnd pins.The user manual says pinouts as H1, H2, H3, 5v and ground.  Attached the two images. Do I need to use any jumpers for 5v, or enable and bits, or does it mean i have a faulty board? Please suggest.Best regards,Praveen  

Hi, I own a rotary inverted pendulum, The product refer me to this website, but I can't find a solution to my problem "https://sites.google.com/view/ucla-st-motor-control/home" My Problem: I tried to test this device with different PID gains using both PuTTY on Windows and Screen utility in Mac OSX, but whenever  I open the matlab real time workbench program, the gain I entered in PuTTY/Screen will automatically change back to the default value.  For example, I select "g" mode in the terminal for dual PID control, if I enter random gain in inverted pendulum mode such as :Pendulum Kp =100 , Ki =0, Kd =10,Rotor Kp =10, Ki =1, Kd =10,the system will somehow work. Then if I close the PuTTY/Screen window as the manual said, and open the real time workbench file in Matlab, the displayed gain will not be the one I entered, it will change back to the default value (kp=300, ki=0 .....)Can anyone help me if similar experience had happened to you?thank you

I don't know if this is the right place, but I am from the SimpleFOC community, a community slowly developing well engineered modules to build brushless motor drivers with.  Both hardware boards and firmware modules.We have already converged on using a certain STM32 chip for the next most promising flagship board for running these firmware modules.I noticed recently the article here.  As an engineer, I believe that that kind of approach is pretty laborious and hard to integrate into my products.  If the same labor effort and clearly quite advanced skills were employed to develop more modular, open source software, I think that would help sell more chips!  And they are good chips, so this seems like a reasonable and respectable collaboration opportunity.Perhaps we could start by getting in touch with a suitable person to discuss this?I can work with others in the community to draft a clear proposal with timeline and budget for parts, and settle on the hardware featur

#include "main.h" /* USER CODE BEGIN PM */uint16_t motor1Faults;uint16_t rxbuffer[10] = {0};/* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ADC_HandleTypeDef hadc1;ADC_HandleTypeDef hadc2;ADC_HandleTypeDef hadc3; CORDIC_HandleTypeDef hcordic; TIM_HandleTypeDef htim1;TIM_HandleTypeDef htim2; UART_HandleTypeDef huart2;DMA_HandleTypeDef hdma_usart2_rx;DMA_HandleTypeDef hdma_usart2_tx; /* Private function prototypes -----------------------------------------------*/void SystemClock_Config(void);static void MX_GPIO_Init(void);static void MX_DMA_Init(void);static void MX_ADC1_Init(void);static void MX_ADC2_Init(void);static void MX_ADC3_Init(void);static void MX_CORDIC_Init(void);static void MX_TIM1_Init(void);static void MX_USART2_UART_Init(void);static void MX_TIM2_Init(void);static void MX_NVIC_Init(void);void setMotorSpeed(uint16_t target_speed); int main(void){    HAL_Init(); &nb

I have an application that requires 3 BLDC motors and I was wondering if I could use a single STM32 micro to run all three motors using the MC software library to interface to the hardware drivers of each motor.

MCSDK5.4.8版本 相最大电流270A，采样电阻0.0009欧，Lq 0.0991mH，Ld 0.04115mH，定子电阻0.01974毫欧，三电阻采样，相电流采样放大倍数3，电机相移角295度，PWM  16000Hz， 扭矩环调参后电机轴抱死，无法启动。