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Hello Everybody,Here are the software and boards in this case:1. MC workbench 6.3.22.STEVAL-IHM039V1/STEVAL-CTM009V1I am using an I-PMSM motor with the ST development boards (STEVAL-IHM039V1 / STEVAL-CTM009V1). In open-loop mode, the motor spins smoothly and quietly. However, when I switch to normal mode—which uses the Hall speed sensors and ICS current sensors—two issues arise:The motor consistently produces a high-frequency noise.At low speeds (e.g., 500 RPM), there is a noticeable lack of torque; the motor cannot sustain rotation when I manually apply light resistance by hand.Could you please help identify the main cause of this problem?Thank you for your help. 

Hello Everybody,Here are the software and boards in this case:1. MC workbench 6.3.22. NUCLEO-F401RE/X-NUCLEO-IHM08M13.?B-G431B-ESC1I have an I-PMSM motor, and I use two boards (one is?NUCLEO-F401RE/X-NUCLEO-IHM08M1, and the other is?B-G431B-ESC1) to run the?ST Motor Profile for detecting the motor parameters. However, the motor parameters in the two test results differ significantly. For example, the result from Board 1 (NUCLEO-F401RE/X-NUCLEO-IHM08M1) is shown in picture 1, and the result from Board 2 (B-G431B-ESC1) is shown in picture 2. We can see that the motor phase resistance is 0.23 ohms, the phase inductance is 0.62 mH, and the back EMF constant is 9.32 in picture 1. And we can see that the motor phase resistance is 0.16 ohms, the phase inductance is 0.43 mH, and the back EMF constant is 10.42 in picture 2.Which result should I trust? Thanks! 

I have a project of making a point -2-point communication using lorawan protocol with the chip called AI-thinker Ra-09h that have an STM32WLE5 MCU . The problem is i dont have any knowledge in this field and i dont know how to deal with this module 

I am working on a simple mp3 player project and have spent a few days on the Spirit library, as offered by ST.This comes in a binary (.a) form only lib_mp3decoder_cortex_m4_v2.2.0.a and has apparently been built for soft floats, using some weird mode where they drive the FPU directly - the "VFP reggister arguments" thing. My project uses the FPU for a lot of stuff, and since you apparently cannot mix these floating modes at link time, I get these errorsSearching online finds a 2021 reply from ST on same topic, where ST say the Spirit company no longer exists so they can't help. But the website is still there, so I emailed them. I got a reply, surprisingly:They don't support users, so I need to contact ST, to which I replied that I am not a car manufacturer, and I am happy to give them some money for a cortex-m4 lib which is actually usable :)Lots of people have been around this. I have a hardware float compiler setting but this mp3 lib uses something different. One poster suggests

I’m working on a project with the Nucleo-L476RG. I want to perform a measurement, then put the microcontroller into Sleep Mode for 2 seconds, after which it should be woken up by the RTC clock.I followed the tutorial:How to configure the RTC to wake up the STM32 from Low Power modesUnfortunately, Sleep Mode is entered but not exited properly.Down below are my project settings: In my measurement function, I call a custom sleep() function.void start_measurement(hx711_t *hx711){ hx711->processed_reading = get_weight(active_hx711, 10); menu_refresh(); pack_data(hx711); if (HAL_UART_Transmit_DMA(&huart2, (uint8_t *)( active_hx711->tx_buffer), HX711_TX_BUFFER_SIZE) == HAL_OK){ active_hx711->measurement_count = 0U; active_hx711->tx_in_progress = 1U; } sleep(); }there's the call of the sleep function:void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc) { //HAL_ResumeTick(); printf("Inside the HAL_RTCEx_WakeUpTimerEventCallback function")

ULPM for the MIPI CSI interface of VD55G1 is not clearly described.Errata (es0643) section "QVGA at 480 fps" say that we should put MIPI in ULPM. Why does this affect timing?WRITE_REG8 STREAM_STATICS_OIF_ULPM 'h01 # MIPI in ULPMIs this a MIPI setting (continuous/discontinuous)? Additionally, a register write is referred to that is not documented anywhere in the datasheet or integration guide.WRITE_REG8 CHANNEL_STATS_ROI_REDUCE_FACTOR 'h10 # 16 lines removed to the stats ROIWhat is this register? The address is not even known.

Hi ST Team, I am using STM32H7S78-DK development board.I have read and tested following article:https://wiki.st.com/stm32mcu/wiki/Security:STiRoT_for_STM32H7Shttps://wiki.st.com/stm32mcu/wiki/Security:OEMiRoT_OEMuRoT_for_STM32H7Shttps://wiki.st.com/stm32mcu/wiki/Security:How_to_start_with_STiRoT_OEMuRoT_on_STM32H7SI need some help on my project.In How_to_start_with_STiRoT_OEMuRoT_on_STM32H7S wiki page, I got the correct result following "1.5 Full regression" section. But for the "3.1 Debug Opening procedure" section, I got error message after clicking "Execute".  The life cycle after clicking discover is "ST_LIFECYCLE_CLOSED (Debug opened)".  Any method to fix this error?10:31:36 : STM32CubeProgrammer API v2.20.0 | Windows-64Bits 10:37:49 : Start Debug Authentication Sequence 10:37:49 : SDMOpen : 624 : open : SDM API v1.0 10:37:49 : SDMOpen : 625 : open : SDM Library version v1.2.0 10:37:49 : open_comms : 513 : open : Asserting target reset 10:37:49 : open_com

Hi everyone, I was trying to port TFM + TFM_SB on my STMU575ZI-Q Nucleo following this guide: https://www.st.com/resource/en/user_manual/um2851-getting-started-with-stm32cubeu5-tfm-application-stmicroelectronics.pdf and I've managed to flash secure bootloader and TFM. I've managed to do the regression of the MCU setting the option bytes. When I finally lunched TFM_UPDATE.sh script, logs appeared on tera term as expected, but in the end it got stuck in TFM BOOT log. So I disconnected the board and tried to repeat the process, cleaning and building again the TFM SB image, TFM Appl image etc... But When I tried to mass erase the system flash, an error has occurred: DEV TARGET NOT HALTED. When I reset the board and I observe tera term logs, I can see the following:[INF] Flash operation: Op=0x0, Area=0x0, Address=0x0[INF] Starting bootloader[INF] Checking BL2 NV area[INF] Checking BL2 NV area header[INF] Checking BL2 NV Counter consistency[INF] Consistent BL2 NV Counter 3 = 0x1000000[INF] C

HelloI am developing on the STM32H7B3-DK using X-CUBE-SBSFU v2.7.0 with IAR compiler version 9.70. During the build, I encountered the following critical error:Fatal error[Li004]: file "STM32CryptographicV3.1.3_CM7_IARv8.a" is not an object or archive fileIt appears that the provided static library (STM32CryptographicV3.1.3_CM7_IARv8.a) was built with IAR v8.x and is incompatible with IAR v9.70, preventing successful linking. The static library is present in STM32CubeExpansion_SBSFU_V2.7.0\Middlewares\ST\STM32_Cryptographic\Fw_Crypto\STM32H7A3\LibCould you please advise:Is there an official version of the STM32 Cryptographic static library compatible with IAR v9.x for STM32H7B3?If not, what is the recommended procedure to rebuild or obtain a compatible library for use with IAR v9 ?Thank you for your support. @STackPointer64 @Jocelyn RICARD @Fred 

Hello,I have already read the AN4758 application note and I still have a few questions regarding PCROP.I have a project for end-users where the main application provides functions (API) that users can call to develop their own code. I was originally planning to provide these functions as a static library, but since PCROP is very useful and secure, I would prefer to protect my API using PCROP instead of distributing a library with unnecessary header files.In my application, the region 0x08000000 to 0x0805DFFF contains my API code. I plan to flash this code first and then protect this area with PCROP.Here are my questions:If the end-user creates an empty project and I only provide the header files, can they still debug their own application even though the API code region is PCROP-protected?Since a PCROP-protected area cannot be read or written, is there any way to update my API code later? I have a CAN bootloader, but this region will be protected by PCROP.(I am using STM32G474RET6 with

Hi,I am using STM32H56x with OEMiROT_Boot example project, currently the swap method of the OEMiROT_Boot  is "MCUBOOT_SWAP_USING_SCRATCH", can I change it to MCUBOOT_SWAP_USING_MOVE?Is there any security concern use MCUBOOT_SWAP_USING_MOVE?Regards,Snaku

I've been playing around with the TrustZone Enabled on the STM32H573 board and using this tutorial:https://wiki.st.com/stm32mcu/wiki/Security:How_to_start_with_OEMiRoT_on_STM32H573_and_563%E2%80%93TrustZone_enabledI had no trouble executing the tutorial, using the Debug Authentication, or changing the permission levels to attach the IAR Debugger to put breakpoints in the main functions of the Non Secure or Secure Applications.However, my group uses the STM32 Cube IDE, and I've been having trouble doing the equivalent using that tool.  I know where to enable and set up the Debug Authentication, but I'm having trouble attaching to the running target, hitting the reset button (as instructed in the above tutorial), and having the program stop at the breakpoint I have enabled in the main function of the Secure Application (before it jumps to Non Secure Init) and displaying the associated source code.  I have built all the projects (OEMiROT Boot, OEMiROT_Appli_TrustZone_Secure, and

I am trying to setup FreeRTOS for the new STM32N6 Nucleo board. Running into the following error `GCC/ARM_CM55_NTZ/non_secure/port.c:1814: undefined reference to `__privileged_sram_start__'`.Based on https://github.com/STMicroelectronics/x-cube-freertos/blob/main/Projects/NUCLEO-N657X0-Q/Applications/FreeRTOS_MPU/README.md#notes, it looks like I am missing some linker files. The example itself has it defined at https://github.com/STMicroelectronics/x-cube-freertos/blob/main/Projects/NUCLEO-N657X0-Q/Applications/FreeRTOS_MPU/EWARM/stm32n657xx_axisram2_fsbl.icf#L80 . But looks to be using EWARM whereas I am using CubeIDE. How can I define/find these linker files needed for the privileged calls?

Hi, I am working on proof of concept project with B-L4S51-IOT1A Discovery board with STM32 micro on board and many useful sensors for fast development, I am wishing to learn in the on board wireless sensors i.e. BlueNRG-M0 and Wifi. I want to load and run BLE examples but current versions of X-CUBE-BLE1 do not provide any working examples. Request to ST to provide working examples for Discovery Kit and BlueNRG-M0. Thanks 

Hi All,I'm using STM32G4 with TIM1 for motor control. The BKIN hardware protection works correctly - when I pull the BKIN pin (PB10) low, the motor stops, and when high, it runs again with AOE enabled. However, the break interrupt never fires and HAL_TIMEx_BreakCallback is never called. I've verified that TIM1_BRK_TIM15_IRQHandler exists in stm32g4xx_it.c, NVIC is enabled. The break flag never gets set even though BKIN is functioning. What could prevent the break flag from being set while the hardware break feature still works?I want to print diagnostic using BKIN callback routing but it doesn't work.I've attached IOC timer configurations.Best regards

Using Nucleo-U545RE-Q, SPI2 Full-duplex Master, default GPIO selected by STM32CubeMX v6.15.0 with LL selected for implementation.Config clock for max 160 MHz and prescale SPI by 8 for 20 Mbps. Add GPDMA Ch2/3 for SPI2 TX/RX.I double checked the output configuration code generated by the CubeMX against the Cube_FW_H5_V1.5.0 Examples_LL: SPI_TwoBoards_FullDuplex_DMA_Master_Init, and it matches exactly but for peripheral selection. Jumper-wire PC1-to-PC2 (CN7.36-to-CN7.35) for simple SPI loop-back test. With this configuration, the loop-back works when I implemented the SPI full-duplex transfer by LL blocking code. But trying to use the GPDMA channels results in no data, no DMA IRQ for TC or DTE, no SPI IRQ for anything. Below is the simple code to try to get a transfer going, there is initialization code that enables all SPI and DMA interrupt sources and handles the IRQ by clearing the flag and setting the local global booleans that you see below. Note that this is setup f

Development environmentMotor control workbench Version: 6.4.0STM32CubeMX Version: 6.16.0STM32CubeIDE Version: 2.00.0Controler/Driver: B-G431B-ESC1 kitI want to drive a 30W BLDC motor using the B-G431B-ESC1 kit.I'm currently following the instructions in the UM2516 user manual on the ST website:Chapter 6, "Connection and first execution of the electronic speed controller (ESC) program"6.1 First case: daughterboard not removed3. Generate and upload the firmware code into the STM32G431CB MCU with the available IDE tool.I selected the "B-G431B-ESC1" sample project in MC WorkBench, ran "Generate the Project," then launched "CubeMX" and then "Code Generate" to generate the project.Up to this point, there were no issues.After opening the project in "CubeIDE," I tried to run "Build," butthe "Build" commands were not enabled.I don't know what the problem is.Is there a more detailed guide for using the "B-G431B-ESC1"?(The UM2516 documentation is insufficient.)Please help

Hello ST Community, i have problems to get the VNF1048F chip to run. It goes every time to the fault state and can not find out, why this problem occurs.The documentation for this chip is not really good and there is not sample application (Source Code) where i can look to find a solution for this problem. Does anyone have some sort of source code how to implement a sequence that this chip is working? I would appreciate any kind of help, to get this VNF1048 chip running.Thank you very much and best regards, Markus

Dear ST Team, I'm trying to deploy models on STM32N6570-DK, and there is the issue:Followed tutorial below:stm32ai-modelzoo-services/object_detection/docs/README_DEPLOYMENT_STM32N6.md at main · STMicroelectronics/stm32ai-modelzoo-servicesEncountered error message below:(st_zoo) PS C:\Users\ricky\git\stm32ai-modelzoo-services\object_detection> python stm32ai_main.py --config-path ./src/config_file_examples/ --config-name deployment_n6_ssd_mobilenet_v2_fpnlite_config.yaml C:\Users\ricky\anaconda3\envs\st_zoo\lib\site-packages\mlflow\utils\requirements_utils.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81. import pkg_resources 2025-11-30 21:33:53.440551: W tensorflow/stream_executor/platform/default/dso_loader.cc:64] Could not load dynamic library 'cudart64_110.dll'; dlerror: cuda

Im new to C programming and even more, programming with a MCU. I have started a project and it was compilable for a while but suddenly, i ran into issues with include errors in data generated code. This is the error code:02:16:11 **** Incremental Build of configuration Debug for project TSCU_ER26 **** make -j7 all arm-none-eabi-gcc "../Drivers/CMSIS/RTOS2/Template/cmsis_os1.c" -mcpu=cortex-m7 -std=gnu11 -g3 -DDEBUG -DUSE_PWR_LDO_SUPPLY -DUSE_HAL_DRIVER -DSTM32H7A3xx -c -I../Core/Inc -I../Drivers/STM32H7xx_HAL_Driver/Inc -I../Drivers/STM32H7xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32H7xx/Include -I../Drivers/CMSIS/Include -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Drivers/CMSIS/RTOS2/Template/cmsis_os1.d" -MT"Drivers/CMSIS/RTOS2/Template/cmsis_os1.o" --specs=nano.specs -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -o "Drivers/CMSIS/RTOS2/Template/cmsis_os1.o" arm-none-eabi-gcc "../Drivers/CMSIS/RTOS2/Source/os_systick.c" -

In the H562 CubeMx setting the flash option bytes only allows flash number of sectors up to 7. If you look at the FLASH_EDATA_EraseProgram example in the H5 firmware bundle you will see it sets the number of sectors to 8 before calling FLASH_OB_EDATAConfig function. this function decrements by one before ORing the sector enable bits. Because CubeMx only allows up to seven when it generates code you do not get the full EDATA range. And if you set 1 in cubemx I guess you do not get any??? 

I believe there's a bug in the stm32h7rsxx_hal_dma code for dealing with repeated blocks in interrupt mode. This bug probably exists in other STM32H7 devices as well.With a typical repeating transfer, in *NON* interrupt mode, the DMA transfer completes successfully, and the DMA state ends up in HAL_DMA_STATE_READY, ready for another request. All is well.However, in interrupt mode, the DMA transfer completes successfully (all data is correctly transferred), but querying the DMA state in the DMA Transfer Complete callback, you'll get HAL_DMA_STATE_BUSY. In fact, it will remain in this state forever.Looking at the stm32h7rsxx_hal_dma.c code, the block starting at 1154 ("Transfer Complete Interrupt management"). There are really only two cases where the HAL_DMA_STATE_READY can be set:1) LinkedList mode (not relevant to us)2) "Normal transfer" where CBR1 == 0. (i.e. not a repeating block transfer) In a repeating transfer, CBR1 contains the repeating config, and is generally not 0 (it's call

Hi,I have a custom board with an STM32L031C6 and I'm trying to read the internal temperature. The board is battery powered at about 2.6V and the vdda is the same.If I read the ADC channel with vrefint, it returns a value of about 850, which, when passed to the function __LL_ADC_CALC_VREFANALOG_VOLTAGE(adcVal[4], LL_ADC_RESOLUTION_12B), returns a calculated VDDA of 6V, which is obviously incorrect.Using this vref to calculate the internal temperature obviously results in a value that's out of range.The same thing works correctly on a NUCLEO-C031.What am I doing wrong?Thanks!

Where can I find the meaning of the returns from connectDfuBootloader? I'm getting -16 back and would like to know what it means.  

Hello,I am new to STM32F746-Disco and I was trying to develop an application starting from TouchGFX.It went all good in developing a touchGFX app and use the generated .ioc and so on to configure a project but I've tried afterwards to configure the ethernet stack LWIP and so on but I was never able to communicate and ping the ethernet device.I've tried on my local to run the ethernet example and I was able to properly ping the device but never been able to do it in the project configured with touchGFX.The strange thing is that I can partially see some comunication such as ARP messages and so on but then the ethernet stack is not capable to reply to ping message. here a snapshot of the communication between my PC and the st board. Does anyone might now what could be wrong in my configuration?I've attached the .ioc