Solved

Hi, I found a small bug in STM32CubeMX for STM32WL55:Enabling the option "MSI Auto Calibration" for section "RCC" does nothing, i.e. generated code doesn't change.I think it should add a call to HAL_RCCEx_EnableMSIPLLMode() or LL_RCC_MSI_EnablePLLMode () in SystemClock_Config() - same as it does for STM32U0. This enables RCC_CR_MSIPLLEN.

Hi,I wonder how the motor control unit should behave if a speed ramp is programmed right after a torque ramp?Following code snippet shows this setup:// Set Torque/Iq limit MC_ProgramTorqueRampMotor1(iqLimit, 0); // Programm speed ramp MC_ProgramSpeedRampMotor1(speed, 500); // Start motor MC_StartMotor1();Do I understand correctly that this code should lead to the following behavior?the motor starts in speed modeif the load driven by the motor increases the speed will decreaseif the load increases further the motor will run with decreasing speed until it reaches the torque/iq limit set by  the MC_ProgramTorqueRampMotor1() functionthe motor will stop and deliver a constant torque - the torque programmed with MC_ProgramTorqueRampMotor1() Best regardsB0bbyR4y

Hi there!i start one of my new project with STM32cubeide 2.0. First i start with configure mu MCU in STM32CUBEMX in this casa STM32G031K8T6 afther i configurate all pin i create a poject . So afther i import my project in STM32CubeIde 2.0 and i build gave me this error:Core\inc\main.h: fatal error: stm32g0xx_hal.h: No such file or directory #include "stm32g0xx_hal.h" but i check with F3 and this file exist , so please someone can help me ? Thank youSergio

Summary:HDMI output on STM32MP257F-DK board does not function with 800x480 HDMI display. The ADV7535 DSI-to-HDMI bridge driver loads and binds successfully, but the probe() function never executes, leaving the bridge in powered-down state. Display shows only backlight, no image.Hardware Configuration:Board: STM32MP257F-DK Discovery BoardFirmware: OpenSTLinux v25.06.11 (latest as of Jan 2026)Display: 800x480 HDMI display (Raspberry Pi compatible)EDID: Acer G50 (110x60mm)Native resolution: 800x480 @ 60HzHDMI cable: Standard HDMI-to-HDMConnection: HDMI port (CN14) → Display via HDMI cableSoftware Configuration:Images tested:FlashLayout_emmc_stm32mp257f-dk-fastboot.tsv (eMMC)FlashLayout_sdcard_stm32mp257f-dk-optee.tsv (microSD)DTB variants tested:stm32mp257f-dk-ca35tdcid-ostl-m33-examples.dtb (default)stm32mp257f-dk.dtb (standard)Result: Same behavior with all combinationsKernel: 6.6.78OS: ST OpenSTLinux - Weston - v5.0.8-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11Problem Description:Obs

Hello,I would like to get information about the availability of the following devices:STM32H562IGK6 UFBGA 144 package (10 × 10 mm, 0.8 mm pitch)STM32H562IGT6Could you please clarify:Are these devices currently available in stock for production volumes (~1,000 pieces)?If they are out of stock, what is the reason and what is the expected availability / product longevity?Are there any devices available now for prototyping, in quantities of about 50 pieces?Thank you for your support.Best regards,Aymen

Hi,i'm playing around with the VL53L4CX after putting it on my own pcb (yay).The user guide states that for the SPAD caliberation, NO target should be placed. The crosstalk requires a 600mm target.Do i understand correctly that the SPAD caliberation therefor is best performed outside and upwards to the sky? Or maybe in a room that is at least 6 meter long?It confuses me because i wonder how this is done in a factory where space is a premium :) Kind regards,        Ruben 

Hello.  I am experimenting with securing a STM32H503 using password authentication, which will ultimately be an automated process.I created a simple password for testing and created the password hash in board_password.bin and da_password.bin(just for comparison, I also used Segger's advice and tried certutil and the resulting board_password.bin file is identical, so I'm pretty sure the password hash worked).I set the chip to PRODUCT_STATE provisioning and programmed the chip with the password using the following:STM32_Programmer_CLI.exe -c port=SWD speed=fast ap=1 mode=Hotplug  -ob PRODUCT_STATE=0x17STM32_Programmer_CLI.exe -c port=SWD speed=fast ap=1 mode=Hotplug -w board_password.bin 0x8FFF000Both of these commands succeeded with no errorsAs recommended, I locked the OTP so I wouldn't accidentally damage it by overwriting by:STM32_Programmer_CLI.exe -c port=SWD speed=fast ap=1 mode=Hotplug -ob LOCKBL=0x1Again, no errorsFinally I set PRODUCT_STATE to PROVISIONED and aga

I would like to know how I can program 2 MCUs (stm32wb55cgu6) simultaneously.Currently, I am programming the FUS and BLE binaries (firmware developed by the company).We need to double production, but I can't program via DFU because an error always occurs in one of the MCUs. Is it possible to program 2 MCUs simultaneously, or is that not possible?

Hello,Recently, I’ve been asking several questions about STM32WB55 BLE behavior, and the respected @FilipKremen  has provided me with great support.It turns out that all this time I was actually working with fake Chinese chips. I suspect that some of the strange issues I faced were due to that.So, I’ve now bought original STM32WB55RGV6 chips and replaced them in my devices.However, with exactly the same firmware (which worked fine on the fake chips), the BLE does not start at all.Here’s what I tried:Regenerated the project using CubeMX and CubeIDECreated a fresh new BLE project following this official tutorial: https://www.youtube.com/watch?v=CKYWy7LKL68&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=16Tested on two different custom boards — same resultOn both boards, other functions seem fine (e.g. I can toggle LEDs on button press, and I can hit the button interrupt in debug)(I flash the chips via J-Link)However, when I set a breakpoint at void APP_BLE_Init(void), th

I have an STM32L011F4P6 with an RTC.  It is running at 3.3V and 16 MHz off the internal HSI RC clock.  The RTC is driven by a +/-20ppm 32.768 KHz crystal.  It is running at room temperature (23-25C).  After calibration, I am losing several seconds per day!  What's wrong?Here's more information:I have a auto-calibration routine where it will output a 1Hz signal on PA2 and capture the rising edges using TIM2 channel 3, running at 16 MHz.  I capture the start time (1st edge), I interrupt on overflow and add 65536 to a 32bit variable, and I capture the final (33rd) edge to get the total number of 16MHz clocks in 32 seconds according to the RTC.  At the same time, I have a GPS module with a 1Hz output fed into PA10.  I set up TIM21 channel 1 identically to the TIM2 setup, to capture the total number of 16MHz clocks in 32 seconds according to the GPS.I take the two numbers and find the difference, not in PPM but in units of calibration (0.954 PPM)

In my project I've set the SPI clock to 125MHz; with a SPI prescaler value=4 all works good, when I set it to 2 the SPI stops working and ther is no clock signal.Any helps ? Thank youCarloV

I call HAL_UART_Init() with LPUART1 at 20Mbaud but when I activate assertion it fail at IS_UART_BAUDRATE().The IS_UART_BAUDRATE() is not correct for LPUART that can have a baudrate up to 53.3 Mbaud.Also for UART, the comparaison in IS_UART_BAUDRATE() should be <= instead of < like in IS_LL_USART_BAUDRATE().

Hello,I recently deployed multiple individual PyTorch models onto my STM32H7A3ZI-Q. My workflow ended up being:1. Convert from .pt -> .onnx -> .tf -> .tflite (quantized)2. Build an X-CUBE-AI project via CubeMX3. Swap models in same project using ST Edge AI Core CLI4. Writing scripts to semi-automate this flowIt works, but setting this up involved quite a few manual steps. Is this the most effective manner to approach this? Curious how others handle thisRegards,Ernest

Hi,I've a project with TouchGFX and FreeRTOS on an STM32H7RS. I was updating the library, regenerating the code from CubeMX but, I've noticed that, for some reason, the file \Appli\TouchGFX\target\generated\nema_hal.c has changed// from - #define NEMAGFX_MEM_POOL_SIZE 16128 /* NemaGFX byte pool size in byte */ // to + #define NEMAGFX_MEM_POOL_SIZE 24320 /* NemaGFX byte pool size in byte */but I can't find in the .ioc inside the CubeMX where this value is set and why it has been changedThanks

I've had problems with sd_diskio.c used for SD card I/O with FatFs.CubeMX version is 6.16.0.I'm using SDMMC with DMA, so consideration needs to be given to cache coherency and alignment.I have both these set:#define ENABLE_SD_DMA_CACHE_MAINTENANCE  1#define ENABLE_SCRATCH_BUFFERHowever, I've found some bugs in the code:In SD_read, the alignment check:#if defined(ENABLE_SCRATCH_BUFFER)if (!((uint32_t)buff & 0x3)){#endifshould have the 0x3 changed to 0x1f, as cache alignment requires 32-byte alignment, not 4-byte.There's another case of this in SD_write.Furthermore, there's a bracketing problem in SD_write with the code under ENABLE_SCRATCH_BUFFER conditional compilation, which is supposed to be invoked when the buffer is misaligned as an else condition for if (!((uint32_t)buff & 0x1f), but is instead an else condition for a DMA success check. This means that the scratch buffer code does not run at all when a buffer misalignment is detected.To fix it, I added a closing brace

Hello ST Community team,About the Typo, on the Table 1 of the RM0473, we have a reserved region between SRAM1 and SRAM2a (from 0x2000 3000 and 0x2002 FFFF) the size of this region is 180 Kbytes and not 36 KBytes as mentioned on the Doc.please have a look at this.

Hello, I am working on implementing an object detection application for the STM32N6570-DK, starting from the reference projects:STMicroelectronics/x-cube-n6-ai-people-detection-trackingSTMicroelectronics/STM32N6-GettingStarted-ObjectDetection I'm encountering a blocking issue when implementing the inference pipeline: During debugging, I found that the inference execution blocks indefinitely at LL_ATON_OSAL_WFE() on line 105 of Appli\App\Src\app_nn.c. The code is stuck in the following loop:static void NN_RunInference(void) { LL_ATON_RT_RetValues_t ret; do { ret = LL_ATON_RT_RunEpochBlock(&NN_Instance_od_yolo_x_person); if (ret == LL_ATON_RT_WFE) { LL_ATON_OSAL_WFE(); // <-- Blocks here } } while (ret != LL_ATON_RT_DONE); LL_ATON_RT_

Hello @Imen.D , A side question: RM0440 for G4 says oversampling mode does not support offset. Any change to this position as like the H7 change?  Solved: 'H7 ADC offset correction in oversampling mode - STMicroelectronics Community Thank you. SK

Hello,I am encountering difficulties installing the ST Edge AI v3.0.0 application. During installation, the client cannot connect to MyST, even though my credentials work correctly on the ST website.I have also configured the HTTP proxy in the installer exactly as I have for other ST products, which functioned without issue. Nevertheless, the installer repeatedly displays the following error:“Issue while connecting to MyST. Please verify username, password, or internet access.”Could you please advise on how to resolve this problem?Thank you for your assistance.Best regards,JeM

Hi everyone,I’m currently working on a project using the ST B-G431B-ESC1 discovery kit to drive a 24V 250W BLDC hub motor. I'm using the SimpleFOC library for control and have added a small heatsink to the board to manage temperatures.The issue is that after running for a short period, I keep losing MOSFETs; they just randomly burn out. The motor wasn't even under heavy load when it happened, but I was trying to tune the PID, so there was some jerking.What could be causing this? Is it likely an overvoltage spike, an overcurrent issue, or something else entirely? How can I find the root cause, and is this board truly capable of driving a 250W–350W motor continuously, even with enough cooling?

In STM32CubeIDE, it is possible to view two different source files side by side by dragging editor tabs with the mouse. However, there is no keyboard shortcut or command to move the active editor to the left/right split.This slows down workflow when frequently comparing files (e.g., main.c and app.c). A command such as “Move editor to right/left split” with assignable key binding would greatly improve productivity.Best regards.

We are using 2 KNX IC on our project. One of them for communication and some LEDs other one (STKNX) just for driving LEDs not for communication. But of course is directly connected to KNX_BUS line. When we applied Surge test , TVS couldn't protect the device.I found some solutions but of course is effects other part of design.TVS is 36V bidrectional.If I choose 100R for 68R connected to pin3 R68 which is transmitter pin, everthing is fine. Passing the test. KNX timing is also good. However, Voltage on VDDHV is lower as excepted, and LEDs are flickering (blinking).1- How can i juice more power from STKNX? 2- Is this a big problem when i choose 100R instead of 68R, because we are not using STKNX as communication IC.Thanks. Cvgate 10uF, Cvddhv - 330uF

Hi,we use the STM32MP157C with almost the same RAM layout as the STM32MP157F-EV1, except that the SDRAM chips are from Micron (MT41K256M16). The PMIC is also the same as the one on the evaluation board, and the settings therefore are identical. TF-A, optee, u-boot and kernel are active.On almost all boards, we see sporadic page faults from the kernel (one in 400 warm starts), distributed across the RAM (all entries from different starts):[ 0.000000] BUG: Bad page state in process swapper pfn:d0cfc [ 0.000000] page:(ptrval) refcount:1 mapcount:0 mapping:00000000 index:0x0 pfn:0xd0cfc -- [ 8.840693] BUG: Bad page state in process tar pfn:f77ae [ 8.840730] page:769addeb refcount:1 mapcount:0 mapping:00000000 index:0x4 pfn:0xf77ae -- [ 9.664655] BUG: Bad page state in process rc pfn:f70c8 [ 9.664691] page:c59745a8 refcount:1 mapcount:0 mapping:00000000 index:0x4 pfn:0xf70c8 -- [ 0.000000] BUG: Bad page state in process swapper pfn:eace6 [ 0.000000] page:(ptrval) refcount:1 mapcount:0 mappi

Hi all,I have a board designed using the STWLC38 as the Qi Rx. An ESP32 is the host controller using I2C to configure the STWLC38. The communication works OK and I can set and read various registers.I have two questions on this configuration:The STWLC38 datasheet lists the functions of all the various registers but doesn't list the addresses for many of them. Are these available elsewhere?The STWLC38 is powered from the Qi coil so that I can only read/write when I have a successful pairing. How can I save my custom parameters to RRAM using I2C?Thanks in advance.

Hi everyone,I’m using an STM32L562 MCU and outputting LSE (32.768 kHz) to MCO for measurement.In LSE crystal mode, I see a large frequency deviation on the oscilloscope (much larger than expected ppm-level error).To rule out the crystal itself, I checked the 32.768 kHz crystal and it seems OK.Then I tried LSE bypass mode (feeding an external 32.768 kHz clock into the LSE pins). In this case, the MCO output frequency error becomes very small, and the waveform/frequency looks correct.So I suspect there might be an issue with the LSE oscillator circuit (load caps, PCB layout, drive strength, leakage, etc.) when running in crystal mode.Questions:Has anyone experienced large LSE frequency error in crystal mode on STM32L562 / STM32L5 series?Any common root causes (wrong load capacitors, stray capacitance, drive level, board leakage, etc.)?Any recommended debugging steps or configuration tips (e.g., LSE drive settings, oscillator startup behavior, measurement method, etc.)?Thanks in advance!&