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I’m running into a ‘Heisenbug’ crash (just adding or moving a bit of general code between builds makes it either crash or work), and when it crashes, the STLINK-V3MINI can’t attach, or if already attached, it fails to halt the processor.Any tips or advice about catching it in the act or theories as to the cause?  

Hi Team,I am using the STM32C542RC on the STM32C5 Nucleo-64 board (MB2213),What is the max. supported baud rate for the USART baud rate?We have checked that, with STM32CubeMX, the DIV1 prescaler, and oversampling by 16, the maximum supported USART baud rate is 9 Mbit/s, assuming the peripheral clock is configured appropriately.However, in our setup, we are receiving garbage/corrupted data at 1.5 Mbit/s. Communication works correctly at 1 Mbit/s (TX and RX both working at this baud rate), but increasing the baud rate to 1.5 Mbit/s or higher in that case results in receiving garbage/invalid data. The STM32 receiver and the sender are configured with the same UART settings:Baud rate: 1.5 Mbit/sStop bits: 1 (also tested with 2)Parity: NoneWord length: 8 bitsHardware flow control: None Please check the above configuration and let us know how to achieve reliable data on the receiving end at a 1.5 Mbps or higher baud rate. If any additional configuration is required, then please let us know. 

Greetings,We have a new HW design based on the STM32H573ZI. We are using the USB port and have itgoing to a 4-pin micro-USB connector with VBUS, D-, D+, and GND. I would like to run an H5 Example application to verify that the HW is functional, something like the Ux_Device_HID example.However the Ux_Device_HID examples I see seem to only support USB-C with USBPD (Power Delivery). Are there any simple Device Only examples which natively support micro-USB, or USB-A? ThanksKen CarlsonDraeger Medical Systems 

I’m trying to migrate a project from the P NUCLEOWB55 MB1355 board to the P NUCLEOWB55 MB-1293 USB dongle.I retargeted the board in MX & check the pinouts etc, all fine. Opened up the project in CubeIDE & built the project.I then switched the board to BOOT0=0 (SW2) & plug it in & open CubePrgFirst issue, its really hit & miss if Prg detects the board. Most often I get Port: No DFU detected but then sometimes I actually get Port: Port 1 and the board can be connected to. It really appears to be pot luck if Prg decides it can connect.If I do manage to get it to connect, I update the FUS & stack, press the Start Stack button as outlined in a previous question, and continue to upload my *.elf file.Second issue, I get nothing from the BLE, no advertising at all. This project works fine on the MB-1355 board by the way.

Hello ST team.I am working on the boot chain from qspi NAND flash memory. The board is based on the STM32MP135F SOC and the w25n01gvzeig winbond 128MB IC. The IC is sitting on qspi bank 1 on the default BOOTROM pins (AN5474 p49).I have already succeeded the bootchain for EMMC and USB uboot successfully locates and flashes the nand with the partitions I have specified. But as set the boot pins to 111 I get 0 logs from the serial.By reading in the forum I suspect that the OTP should be programmed with the NAND layout configuration but I would like to be sure. Note the I have build tf-a with the STM32_SPI_NAND=1 on the extra flags and I get a boot log from NAND boot if i perform software reset from uboot usb.With softreset and tfa hardcoded the otp value for nand block nb[7:0]:STM32MP> resetresetting ...▒NOTICE: CPU: STM32MP135F Rev.YNOTICE: Model: STMicroelectronics custom STM32CubeMX board - openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11INFO: Reset reason (0x74):INFO: System

CubeMX allows the user to change the Preemtion Priority of the “System service call via SWI instruction” / SVCall_IRQn.When its not at the default value of 0, CubeMX generates this HAL_NVIC_SetPriority(SVCall_IRQn, X, X); inside HAL_MspInit(). When USE_FULL_ASSERT is enabled this function call triggers an assert. Namely assert_param(IS_NVIC_PRIO_INTERRUPT(IRQn)) where IRQn is SVCall_IRQn and IS_NVIC_PRIO_INTERRUPT(X) checks if IRQn is != to SVCall_IRQn.I noticed this on a STMU385, using CubeMX version 6.18.1Best Regards, Cecil

Hi. I built the PCB myself at home. While working, I noticed strange anomalies in the image. The anomalies are in different places and on different photos. I asked AI but didn't get a satisfactory answer. I tried reducing the frequency without any positive effect. I suspect ESD or power supply issues. The traces are very thin, 0.4 mm for power and 0.35 mm for data. Has anyone experienced this? 

I’m trying to build the LED example for the P-NUCLEO-WB55.USBDongle.I have included all the necessary include & source paths yet when I try to build it exits with the following, This file does actual exist though,  and its location is in the paths list, What am I missing here?

i started working on the B-G431B-ESC1 board with a 2836 motor but it would not start. so i started looking at the setup and tried different configurations but no luck. the profiler would not run the motor either. after i disconnect the motor and removed the bus voltage, the Iq in the motor pilot still shows significant numbers.. i wonder if this is a sign of damaged board?   

Dear all, I have designed a custom board using the STM32H563ZIT6 as the host MCU and the ST67W611M1 as the NCP. As part of the initial bring-up, I am attempting to flash the ST67W611M1 using the QConn_Flash_Cmd-ubuntu tool in standalone mode. For this, I have connected a USB-to-TTL converter directly to the NCP UART interface. The BOOT and CHIP_EN pins of the ST67 are controlled by the host MCU, which toggles them in the required sequence to place the NCP into UART (flash) mode (see below code). I use the same sequence given in the NCP_Loader Example. if (flash) { LL_GPIO_SetOutputPin(BOOT_GPIO_Port, BOOT_Pin); } else { LL_GPIO_ResetOutputPin(BOOT_GPIO_Port, BOOT_Pin); } /* RESET NCP CHIP */ LL_GPIO_ResetOutputPin(CHIP_EN_GPIO_Port, CHIP_EN_Pin); HAL_Delay(100); LL_GPIO_SetOutputPin(CHIP_EN_GPIO_Port, CHIP_EN_Pin); if (flash) { /* CLEAR BOOT */ HAL_Delay(100); LL_GPIO_ResetOutputPin(BOOT_GPIO_Port, BOOT_Pin); } I verified the BOOT and CHIP_EN signals on an oscillosco

Hello everyone,I am experiencing an issue with MotorPilot on a new laptop.Problem descriptionWhen I start MotorPilot, the application window opens but:I can only see a black screen whit a white arrow the content is flickering no GUI elements are visible or usableThe issue only affects the application window, not the whole system.System informationOS: Windows 11 Laptop: New system (Intel Core Ultra 7 255HX + RTX PRO 2000)Additional observationsThe program seems to be running, but the UI is not rendered correctly This looks like a graphics / rendering compatibility issue Problem occurs only on the new laptop (older systems worked fine)What I already triedRunning as Administrator Disabling fullscreen optimizations(no improvement so far)Has anyone experienced the same issue with MotorPilot?Is there a known workaround? Can hardware acceleration be disabled? Are there recommended settings for modern GPUs?Any help would be appreciated.Thanks!  

In RM0366 Reference Manual GPIO section it says that there is a BRR register at offset 0x28 but in the GPIO register map its not shown. I assume this is a mistake but I want to know if STM32F301C8 has a BRR register. 

Hello!I a new in this.I have two sets of DA files: for password access and for access via certificate.I've tried to flash a NS-firmware, provision a password.obk, then change Product state to Provisioned/closed. Thas was successful. I can perform a regression from this state.But i also tried to open a debug session. Without success. CubeProgrammer says, that I am able to make full regression only, while Cube IDE asks for certificate DA.I know, that certificate auth method is valid with TZEN=1 only, but I tried to provision that obk with TZEN=0.As a result, I Have this:The default ST password from CubeProgrammer's folder is not working,I tried to provide all-zeros and all-FF password without success.But maybe I need to change something in the header. Or change a password length.So, 3 questions:1. Is this device totally bricked, or I can some-how calculate a password.bin2. How to perform debug in closed product state on STM32H563 if TZEN=0 ?3. How to perform debug of the the secured

I am having trouble generating an HSO based project.  I have already confirmed the board works with “Observer+PLL”.  When switching to HSO I am able to select it in the drop down, at which point it:1. Resets my current sense gain (should be 50), I have no issues replacing this value.2.  Under Speed Sensing I am provided with an empty Current Scale box, which is a “required field” however upon entering a value it remains red and tells me I cannot enter a value, as “no value is allowed”. Is this a bug or have I configured something incorrectly?  It also seems odd that the current gain setting is cleared, although I can edit that without issue.  

Hi I want to update firmware on my X-NUCLEO-67W61M1 board. I'm talking directly to the board using QconnFlash tool.I have pulled BOOT and ENABLE pins high as described in manual. Looks like communication is established, but later it fails on receiving the ack. Any idea while it fails?Log is here: F:\Projects\ST67W6X_Utilities\Binaries>QConn_Flash\QConn_Flash_Cmd.exe --port COM18 --config NCP_Binaries\mission_t01_flash_prog_cfg.ini --efuse=NCP_Binaries\efusedata.bin[23:06:09.042] - Serial port is COM18[23:06:09.042] - ==================================================[23:06:09.058] - FW get address from partiton file F:\Projects\ST67W6X_Utilities\Binaries\NCP_Binaries\./partition.bin[23:06:09.060] - Address=0x10000[23:06:09.060] - FW get size from partiton file F:\Projects\ST67W6X_Utilities\Binaries\NCP_Binaries\./partition.bin[23:06:09.062] - Size=1785856[23:06:09.069] - Program Start[23:06:09.069] - ========= eflash loader cmd arguments =========[23:06:09.097] - seri

Hi,by chance I found the “RoT Provisioning Software Pack” (https://github.com/STMicroelectronics/stm32-util-rot-provisioning).Looks promising; are there already any examples using it? I’m currently in the process of adapting the H563ZI OEMiROT examples in some custom project. Kolja 

Hi all,I'm experiencing very poor WiFi scan sensitivity with the ST87M01 (FW 2.9.0) compared to an ESP32 using the exact same antenna (connected via U.FL). While the ESP32 easily finds multiple networks, the ST87M01 only sees very few, or none at all.Device Info & Scan Config (ST87M01)```textatiSTMICROELECTRONICSST87M01-1301A:2.9.0-M:2.9.0-S:2.9.0-G:2.9.0-B:1.1AT#WSCAN=4,1      <-- [Config] RF Path (NB-IoT antenna path)OKAT#WSCAN=3,500   OKAT#WSCAN=5,3     OKAT#WSCAN=2,0     OKAT#WSCAN=1,1,6,11 <-- [Action] Trigger scan on channels 1, 6, 11OK...#WSSTOP           <-- [Result] (Hardly any networks returned)```Reference: ESP32 Scan (Same Antenna, same spot)```text1: Yippie (BSSID: 3C:A6:2F:B5:E4:37, Kanal: 11, RSSI: -48 dBm)2: RAK7268V2_BAD1 (BSSID: AC:1F:09:19:BA:D2, Kanal: 11, RSSI: -50 dBm)3: Yippie (BSSID: D4:24:DD:4D:F2:2F, Kanal: 11, RSSI: -54 dBm)4: Yippie (BSSID: DC:39:6F:1F:5C:03, Kanal: 11, RSSI: -76 dBm)5: linksys (BSSID: 98:FC:11:CE:00:16, Kanal: 9, RSSI: -86 dBm)

Dear Team, We are currently working on a project based on the STM32N657X0H3Q MCU. As part of our design, we are planning to use a QSPI Flash and SDRAM instead of the OctoSPI Flash and HexaSPI PSRAM used in the reference designs. Could you please share any reference schematics, application notes, or design examples that demonstrate the integration of QSPI Flash and SDRAM with the STM32N657X0H3Q? Additionally, our design is highly space-constrained. If anyone has a reference for a minimal power supply/regulator design for the STM32N657X0H3Q, we would greatly appreciate it if you could share that as well. We look forward to your response and guidance. Thank you for your support. Best Regards, Ajnas C

  Hi Team   Am working on a custom hardware design using the STM32H745IIT6 microcontroller and interfacing it with an external SDRAM   IS42S83200J-7TLI.  Any available reference designs, including: Schematic diagrams PCB layout design files  Application notes or design guidelines specific to STM32H7 FMC/SDRAM interface If anyone has experience with a similar configuration or can share reference projects, evaluation boards, or design tipsespecially related to signal integrity, routing, or SDRAM timing configurationit would be very helpful. Regards, Sathiya    

Hi all,   I am working on a project where I have a clock generated from a 25MHz crystal oscillator and multiplied by a PLL to 100MHz. I want to feed this clock directly to the HSE input of my STM32G431CBU in order to achieve a 100MHz HCLK clock, which should be ok given that the maximum acceptable frequency is 170MHz. STM32CubeMX throws in an error saying that the clock input frequency is too high ("maximum should be 48MHz"). However according to table 55 in the datasheet (link below), the IO used for HSE input (PF0, IO structure FT_fa) should be able to function at 100MHz at speed 10 and even faster at speed 11, which are specified to be hardware limitations. https://www.st.com/resource/en/datasheet/stm32g431c6.pdf Can I force STM32CubeMX to just roll with it / trick it into accepting it? Is my STM32G431 just going to vaporize in a puff of smoke if I try it anyway?   Thanks!

Hello, world. I try to find answer how read that code: 2020L.  Full text on chip are:  M27C801 -100F1 52987 -2020L SINGAPORE   That 2020L need read like: WWYXX? Or YWWXX? Thank you for answer. Regards  ?

I am using NUCLEO-F303RE board. I couldn't find ES and E marking in the product information of the datasheet. Does it mean it is not "ES" and "E" marked. can any one please confirm it.

I designed a board with a layout that I was very happy with, but this meant remapping FDCAN1_TX to PC14, which CubeMX dutifully created code for... However, the code wouldn't compile.  I needed to get my board order in that day so I simply adjusted the pin arrangement and modified the layout, but it looks for all the world as though there are some missing defines.  I say this because the datasheet quite clearly states this as a valid remapping. Just thought I'd put this out there. Maybe the fix is as simple as:-#define GPIO_AF13_FDCAN1 13 I may revisit this in the near future and I am aware there are some other remapping issues others have tripped up on.  I guess it's because this is a relatively new part.  It only came out in Feb 2025. Does anybody else know anything about this issue?

Hi everyone, I am checking the STM32N6 series package options and I would like to confirm one point. Does the 66 mm package of the STM32N6 series expose the pins required to use the SDMMC controller? I understand that SDMMC support may depend not only on the MCU series, but also on the specific package and pin availability. I have seen SDMMC listed in the device features, but I am not sure whether it is actually usable on the 66 mm package. Specifically, I would like to know: Is SDMMC available on the STM32N6 66 mm package? If yes, does it support a practical SD/eMMC interface, such as 4-bit mode? Are there any package or pin-mux limitations I should be aware of? Any confirmation from someone who has checked the datasheet/pinout or used this package would be appreciated. Thanks!

Hello, I cloned the repository https://github.com/STMicroelectronics/STM32CubeF3.git but importing the project ...STM32F3-DiscoveryExamplesBSP some code is missing in particular the code to manage the BSP device on the STM32F3DISCOVERY BOARD. What I am missing? Thanks in advance Adriano