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Kindly provide an example code to make my steval esc001v1 to a working ESC for a drone i have configured PA15 as input which accept PWM signal but throttle mapping is not done any help will be appreciated. 

Hi,We have observation that STM32L496RGT6 takes around 32mA current when not even flashed first time. That is STM32 has purchased from supplier and assembled only. It takes 32mA. When it is first time programmed when it takes less current.What could be reason and how to solve first problem./Anurag 

Hi,I'm measuring the power consumption of the LIS2DUXS12 for FSM, MLC, and the step counter with or without Smart Power mode (SMART_POWER_EN bit in CTRL1). The current reduction matches my expectations (e.g. ~13.3 µA down to ~8.2 µA with 1 FSM program running). AN5909 describes the mechanism as dynamically scaling the supply current of the embedded function hardware blocks between "operating level" and "lower non-operating level".My question: Is there any trade-off to enabling Smart Power mode besides the current savings? For example:Any added latency? Any impact on accuracy? Any recommended ODR for Smart Power? Any settling time when switching between operating and non-operating levels?I couldn't find this addressed in the AN5909 or the datasheet, and I haven't found any existing thread relating to this. Any clarification would be appreciated.Thanks!

Hello ST Expert,We have been experiencing a number of shorts and opens on the IIS2DLPC and suspect issues with our solder mask layer. We have tried opening the solder mask under the component and have tried leaving the solder mask under the component, please see images below.  We have experienced shorts and opens using both of these methods. Could you please provide the recommended solder mask layer for this component? Thanks, Sam 

Is there ST-Link V2 driver for Windows 11? I am using Microsoft Surface Pro + Copilot and trying to load code on STM32L476.

I am developing a custom embedded device that uses PIMA with USBX in order to access the SD card contents of my PCB from a PC through USB.When UX_PIMA_WITH_MTP_SUPPORT is enabled, the device is correctly detected by Windows and communication works properly.However, in order to correctly represent a hierarchical folder structure in Windows Explorer using MTP, I would need support for command 0x9805 (GetObjPropList, CMD 00000043). As far as I can see, USBX does not implement this command.To avoid implementing the full MTP property system myself, I wanted to use the more generic PIMA behavior instead, where the host requests ObjectHandles each time the user enters a folder, similar to how old digital cameras behaved.The issue is that when I disable UX_PIMA_WITH_MTP_SUPPORT, the PC no longer even recognizes that a USB device is connected. If I enable the macro again, everything works correctly.So my question is:Is disabling UX_PIMA_WITH_MTP_SUPPORT expected to completely break USB enumerat

Hi, STNow for my STEVAL-MKI225A Board which contains LPS28DFW Barometer sensor I Used the application “read_data_polling.c” which is running on “NUCLEO-F401RE Board” to test the sensor with the default example configurations which are:md.odr = LPS28DFW_4Hz;md.avg = LPS28DFW_16_AVG;md.lpf = LPS28DFW_LPF_ODR_DIV_4;md.fs = LPS28DFW_1260hPa;and I noticed that when I’m getting the data in the while loop, It works correctly only with I2C Standard Mode (100KHz) and it stucks with fast mode.but the main problem is when I’m adding delay or another code execution to the while loop, It also stucks and doesn’t work unless I removed the delay or the code added. 

Hi, We are using PCB coil antenna. We need your support to tune the filter circuit.Thanks,Sankar.K

Good afternoon, We are currently working on the development of a board intended for use in explosive areas. For the design calculations, could you please confirm the junction-to-ambient thermal resistance (θJA) of the LSM6DSV80XTR? In the Datasheet it is not avaliable.

CubeMX 6.18 does not persist two critical STM32U5A5 USBX and FileX settings when their values are entered as multiplication expressions in the form N*1024. This results in incorrect macros being generated in the app_azure_rtos_config.h header. The correct minimum values are provided below.UX_APP_MEM_POOL_SIZE    40*1024FX_APP_MEM_POOL_SIZE     2*1024USBX_MEMORY_STACK_SIZE 24*1024In the case of the STM32U5G9, CubeMX does not persist the USBX System Stack Size setting. The minimum required value is 24 KB. 

Hi everyone, I am facing an long-standing issue with a STM32L476RE-powered device loosing UART frames when waking up from UART3 from Stop Mode (will be analyzed on another issue).Prompted by this, I have a generic question for clock configuration after Stop1-2 mode.The device uses HSI & LSE for all of its peripherals, in a bare-metal CubeMX project.Q1: The function __HAL_RCC_WAKEUPSTOP_CLK_CONFIG(RCC_STOP_WAKEUPCLOCK_HSI);is called 1 time before while(1){} loop. Should it be called just once or should it be called every time before calling HAL_SuspendTick();HAL_PWREx_EnterSTOP1Mode(PWR_STOPENTRY_WFI);?Q2: Should we call SystemClock_Config();every time after waking up from Stop mode, despite the fact that the clock selection ( HSI & LSE ) remains the same and no PLL or MSI is used ?Q3: Could calling SystemClock_Config();HAL_ResumeTick();disrupt an ongoing UART-RX ( running on Idle-line callback ) , despite the fact that clock selection is not changing ? Thank you in advance

After i finish my setups according to STM32U0 Bare-Metal USB workshop video. When i compile and load he program to my PCB adn then connect my pcb to PC via USB cable; at the device manager connection seems undefined like the picture below. It says that Unknow USB Device. Does anybody face like this kind of problem? 

Could you please provide information on the DMIPS/MHz performance of the A35 core in the STM32MP23? Is this specified in any documentation?

I'm using  Stm32CubeMx 6.18.0 on whole clean new Windows system. When I try to open New Project from Board It is downloading some file initially and when search for HTTP server it fails with error I typed at Title. I follow other releated topics suggestions to change directory and proxy server but its still fails. What should I doCurrently New Project from a Board UI opened, but still when I select a board or click tabs there, it is giving following error: `Error during Data Refresh - Download has failed, some data may be not updated. Please retry later`  

I want to get the scroll position of a ScrollList widget in the view, and also set the scroll position in the view.However, the `setOffset` and `getOffset` functions of `ScrollBase` are protected.How can I get and set the scroll position of a scrolllist?

I was finding non-deterministic behavior entering standby -- small code changes unrelated to the standby code or devices seemed to prevent standby.  Many hours of debugging later using a joulescope and claude automation, the following fixed the problem -- declare the standby code as noinline (by default, my builds inline small funcitons) void __attribute__((noinline)) enter_standby_mode(void) Also, an attribute to not optimize works as well.   It did not appear that the generated assembly for the standby code changed, but what did change, due to inlining, is the code alignment.  This suggests, but doesn’t confirm, that the fetch pipeline can impact the ability to enter standby on this part.  This was never an issue on the stm32l432.

I have encountered a specific issue using the STM32F411RE NUCLEO Board and I2C peripherals:The problem:When i plug in the board with I2C devices (DFROBOT BMM150, MPU6050, ADAFRUIT ICM20948) already connected to the board my PC (LINUX) cannot find the device.when trying to flash CUBEIDE says something along the lines of ‘STLINK not found’ and PROBE-RS says:ERROR nusb::error: interface not found (errno 2) WARN probe_rs::probe::list::linux: Make sure you have reloaded udev rules after setting everything up WARN probe_rs::probe::list::linux: Read more under https://probe.rs/docs/getting-started/probe-setup/ Error: Failed to open probe: Failed to open the debug probe. Caused by: 0: The debug probe could not be created. 1: A USB error occurred. 2: interface not found (errno 2)The fix:1) UNPLUG BOARD2) DISCONNECT I2C peripherals3) PLUG in BOARD4) RECONNECT I2C peripherals5) the STLINK is found again and I can flash code like normalWill this be an issue if I design a PCB with permanently conne

I'm testing the VL53L9CX sensor with the X-NUCLEO-53L9A1 board. I'm conducting my tests with the Nucleo H561ZI board and the X-CUBE-53L9A1.zip software stack.The sensor works correctly indoors. However, outdoors, when moving from shade to full sun, the sensor malfunctions.The software returns the error: VL53L9_ERROR_INVALID_STATE. why?In the datasheet, this isn’t a description of all registers? So I cannot clear this error without resetting the device!Can have a complet datasheet of the product?

I’m looking for data related to peak pulse Power Rating of this TVS, that includes pulse width (tp) of up to 10ms. Also, I wanted to know if there is any reliability data that is available for this component.  

I am looking for the STEVAL-VL53L9 evaluation board for vl53l9cx, but it is out of stock at all distributors I checked.could you please let me know the expected availability / ETA, where i can buy it or, if there is any similar alternative board with same specs.

We have been evaluating the pre-trained model yamnet_e1024_64x96_tl_qdq_int8.onnx from the STM32 Model Zoo (ESC-10 variant) and noticed a potential discrepancy between the class label order in the provided YAML configuration and the actual output behaviour observed on target.While the model itself appears to perform well, the mapping between output indices and class names does not seem to match the order documented in the YAML file. Observed behaviour:The YAML file lists the classes as:0: dog1: chainsaw2: crackling_fire3: helicopter4: rain5: crying_baby6: clock_tick7: sneezing8: rooster9: sea_waves However, on our target, the outputs appear to correspond to the following order:0: chainsaw1: clock_tick2: crackling_fire3: crying_baby4: dog5: helicopter6: rain7: rooster8: sea_waves9: sneezing This is consistent across multiple input samples, which makes us suspect a systematic label remapping rather than random misclassification. Preliminary hypothesis:We suspect that this could be caused

Hello, I am using an STM32H750I-DK Discovery board with LAN8742 PHY, MII mode, FreeRTOS and LwIP.Ethernet works initially: the STM32 IP appears in arp -a and I can ping it. After some time, the ARP entry disappears and ping gives Request timed out or Destination host unreachable.I have already checked the IP configuration, MII configuration, PHY link, DMA, MPU/cache, and tried disabling RTP traffic, but the issue still occurs.What could cause the STM32H750 Ethernet connection to stop responding to ARP and ping after working normally for some time? What should I check next?

Hello, I am currently developing a test environment based on the NUCLEO-F411RE evaluation board (MB1136C).As part of this project, I am designing a mechanical enclosure with modular plastic components, which I plan to 3D print. While several enclosure designs are available on Thingiverse, none of them meet the specific requirements of my project. Could you please provide, if available, the official CAD files (STL or STEP format) for the MB1136C?This would allow me to integrate the board's exact dimensions into my assembly and ensure proper tolerances with my existing parts. Thank you for your time and assistance. I look forward to your response. Best regards,Alexandre

Hi STM Team,We are currently using the 25 MHz crystal configuration based on the NUCLEO-H723ZG reference design for our STM32H723 + LAN8742 Ethernet implementation.The original/reference crystal used is:NX2016SA 25 MHz – EXS00A-CS11321 (NDK)Frequency: 25 MHz Load capacitance (CL): 6 pF ESR: 80 Ω Reference design uses approximately 5.1/5.6 pF load capacitors.However, the above crystal is currently not readily available in the market, so we evaluated the following alternatives:ECS-250-6-37-JTN-TR – 25 MHz, 6 pF, 80 Ω X2C025000DZ1H-U XRCGB25M000F1SBAR0With the above replacement crystals, we are observing significant data loss during Ethernet communication through the LAN8742.We have already tried the recommended/reference crystal configuration and compared the Ethernet behavior with the replacement crystals, but the issue is still observed with the alternate parts.Could you please help us identify a suitable 25 MHz crystal for the STM32H723 + LAN8742 configuration, preferably a currently

Hello Team,I am using the STM32N657x0-Q Nucleo board with the STEVAL-66GYMAI1 (VD66GY) camera board connected via FFC. Both CN8 and CN10 are connected to the PC, and I am viewing the camera stream through UVC.I tested the official precompiled HEX files from: X-CUBE-N6 Camera Capture STM32N6 Getting Started Object Detection In all cases, the image is heavily blurred. Objects appear relatively clear only at approximately 1–2 cm from the lens, while anything beyond that distance becomes significantly out of focus.I attempted to adjust the M12 lens focus across its full rotation range, but no noticeable improvement was observed. The same behavior occurs with multiple example projects and unmodified hardware.Could you please advise which of the following areas is most relevant to investigate? Camera board compatibility with STM32N657x0-Q Sensor/lens configuration in the example firmware Lens focus or alignment issue Defective lens or hardware issue Recommended reference project/co