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 Hi everyone, I’m using a MacBook with an Apple M1 chip running macOS Sequoia 15.2. I recently updated STM32CubeIDE to version 1.18.1. My target board is a Nucleo-32 STM32L031K6T6. Initially, I created a new project using STM32CubeIDE and, without modifying anything, successfully debugged the automatically generated code. I noticed that the .elf file was correctly generated in the Debug folder. Then, I added a very simple code snippet to send a value over the serial port, just to test functionality. However, when I ran the code, I got the following error: /Applications/STM32CubeIDE.app/.../ld: oc4.elf section `.text' will not fit in region `FLASH'/Applications/STM32CubeIDE.app/.../ld: region `FLASH' overflowed by 6884 bytescollect2: error: ld returned 1 exit statusmake: *** [makefile:64: oc4.elf] Error 1 After this error, the .elf file disappeared from the Debug folder. It seems that STM32CubeIDE generates the .elf file initially but deletes it after.&nbsp

Hello,I am trying to enable electrical angle interpolation option in MC WB for the hall sensor, however, I am not seeing any changes in the generated code. I think this option is related to the REV_PARK_ANGLE_COMPENSATION_FACTOR since it is used to calculate the electrical angle based on the speed. is it correct? if no, which part of the code is changed? Thank you/****** Hall sensors ************/ #define HALL_AVERAGING_FIFO_DEPTH 16 /*!< depth of the FIFO used to average mechanical speed in 0.1Hz resolution */ #define HALL_MTPA false /* USER CODE BEGIN angle reconstruction M1 */ #define PARK_ANGLE_COMPENSATION_FACTOR 0 #define REV_PARK_ANGLE_COMPENSATION_FACTOR 0 /* USER CODE END angle reconstruction M1 */  

Hi,I have project in cube ide 1.18.1. with stm32h523.The generated code void MX_I2C1_Init(void) has LL_I2C_EnableFastModePlus(I2C1); at the end despite the configuration is set to normal (not fast or fast+). This looks like generator bug because I don't see the same error in stm32g071 project.I explicitly need the normal i2c mode setting for its sink current limit. Otherwise this bug may actually cause a chip damage due to over current.Can anyone confirm if this is indeed a bug?It is easy to reproduce. just create empty project with i2c and set the driver to LL. the 100kHz normal is the default.I tested it with real cpu and even if I replace it with LL_I2C_DisableFastModePlus it still seems to sink >20mA so it does not behave as the datasheet suggests. I did not find specification for current in normal mode, but I would expect something above 4mA based in i2c protocol spec and safe margin below 25mA which is the damage limit according datasheet.

Hello everyone,I have the B-L475E-IOT01A2 board equipped with the M24SR64-Y, connected on the I2C2 bus. I managed to write URI, SMS, and email records, and even successfully wrote NDEF text via a mobile application. However, I haven't been able to write NDEF text via I2C.Is there any guide or example available that could help me resolve this issue?Thanks in advance for your help!

Dear all,I have dev a custom board  pcb based on stm32h743ii with 32MB of flash and 32MB  sdram FMC  for a 7 inch lcd HD. I am new on cubeide i coming from esp32 world and i have some programing dev question .Is it a good idear to implement :To partition the flash in 2 regions 1 for system the 2  to store image in the flash in png or jpeg format then load them....What is the best solution for this family of mcu.   

HiI'm trying to sample a sine wave between 400 and 500 kHz with the Nucleo H723ZG. I'm using the 16 bit adc 1 with following configuration:sampling rate: 2 MSpsT_sampling: 16.5 clock cyclesf_adc: 50 MHz (from PLL2P: 100 MHz)DMA circular modecontinuous conversion modeadc trigger: regular conversion launched by softwareI'm trying to calculate the correct frequency of the signal. The calculated frequency fluctuates between +-500Hz, which is not accurate enough.The code to calculate the frequency has been tested with pre-generated values with a given frequency and works fine with an accuracy of +- 1Hz.I already checked the reference voltage VREF, which is fine, and removed L1 (as described in https://community.st.com/t5/stm32-mcus-products/fluctuations-in-adc-value-of-stm32h743-mcu/m-p/331501#M79889).There seems to be a problem with the sampling / sampling rate.Any solutions will be highly appreciated .Thank you

Hi, I am trying to get any of the TouchGFX demos to work on STM32N6570-DK board to work but nothing worked so far. Only TouchGFX Analog/Digital clock example works from all other available examples. All available demos for N6 DK board don't work.When I try a demo, I see that the "Post-Build steps" has already the following script:arm-none-eabi-objcopy.exe -O binary --remove-section=ExtFlashSection --remove-section=FontFlashSection --remove-section=TextFlashSection ${ProjName}.elf ${ProjName}.bin&arm-none-eabi-objcopy.exe -O ihex --only-section=FontFlashSection --only-section=TextFlashSection --only-section=ExtFlashSection ${ProjName}.elf ${ProjName}_assets.hexI appended the script with "&&" to add the header script as follows:arm-none-eabi-objcopy.exe -O binary --remove-section=ExtFlashSection --remove-section=FontFlashSection --remove-section=TextFlashSection ${ProjName}.elf ${ProjName}.bin&arm-none-eabi-objcopy.exe -O ihex --only-section=FontFlashSection --only-s

Hi,   I am trying to use the dual-bank mechanism of a STM32L496 MCU. Using `BFB2` bit of User Configuration register, I am able to switch between bank 1 and bank 2. My application, using FreeRTOS, runs without problem in bank 1. However, when I set the `BFB2` bit, it properly boots from bank 2 (I can follow traces sent on the UART proving it), but I systematically get a HardFault, forced from a UNALIGNED fault, that seems to occur during the execution of FreeRTOS's `xPortPendSVHandler`.   Any idea what could be the cause of it ? or how to workaround it?   Thanks in advance for your help.

Hi everyone,I’ve been working with the STM32WB1MMC module and I’m running into several issues related to HCI command support over UART.1. Using stm32wb1x_BLE_HCILayer_fw.binI started by flashing the binary found here:STM32CubeWB/Projects/STM32WB_Copro_Wireless_Binaries/STM32WB1xUnfortunately, the module doesn’t respond to any HCI commands over UART.Is this binary supposed to work standalone, or does it require an application to map the UART interface?I’ve tried several UART ports but haven’t received any response so far.2. Testing Transparent ModeTo explore alternatives, I looked into the Transparent Mode example from ST:STM32CubeWB/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentModeAccording to the documentation, this application should allow controlling the MCU directly via HCI commands when used with the XX-BLE_Stack_full_fw.bin binary.Since the project is only available for the Nucleo-WB55RG (not for the WB1MMC module), I ran tests on the WB55RG instead, which I had

HiI was here with a timer question not long ago, and everything seemed solved. https://community.st.com/t5/stm32-mcus-wireless/timer-tim2-does-not-work-when-ble-is-initialized-in-stm32wb55/m-p/794896#M24405I am working on a custom device, but I made a demo version for the nucleo board to share the project.Respected @FilipKremen  helped me then. Also, when regenerating the project with entering standby mode, everything crashed, and for many days, I couldn't find what the problem was because most of the files seemed to be identical. And now I added the functionality with the standby mode to the project with the timer example, and I was able to trace the problem.If I activate #define CFG_LPM_SUPPORTED 1, entering standby mode on a long press of button 1 works, but the timer doesn't start at the initialization. At the same time, if CFG_LPM_SUPPORTED is 0, the timer works fine, but entering standby mode does not work.Is this a bug, or am I missing something? Please help meI a

Pin 2 is connected to Boot0. is it Okey to do this (not using resistors).?

Dear STM Community and Experts,we are trying to implement a dual-port USB-C design using STM parts with the following requirements:Port 1: USB-C Power Delivery (PD) Sink, 100W, no dataPort 2: USB-C non-PD Source 5V 2A max., USB 3.1 Gen 1 Data, Display Port (DP) Alt-ModeThere's plenty of documentation by STM on USB-C, but unfortunately we still have some uncertainties mainly about the companion circuitry and tying it all together.We selected STM32G0B1 as the Platform Policy Device (PPD) and are planning to implement both UCPD interfaces on it, one for each USB-C port, using STM's UCPD firmware. The selection of the companion-chips for these port requirements is less clear to us:For Port 1 (100W PD Sink) we decided to use TCPP01-M12 as the companion chip and STL40DN3LLH5 as the VBUS load switch.For Port 2 (DP Alt-Mode, USB 3.1) we are using a USB 3.1 / Display Port MUX by TI (TUSB546), but we are unsure of which companion chip to use here. Should we use TCPP

HiWhich module would you recommend as a replacement for the SPAC265BC12P0.30 power module, with the same dimensional and technical specifications?

I'm using STM32CubeIDE 1.17.0 and it was working fine but today when i open the board selector, i see an ads instead of the boards list.

Hi all,I'm building a discharger using my STM F446RE, such that it's RTC registers are used to store data that'll be loaded to set parameters in my code every time the discharger is plugged into the power. Just to clarify - I'm NOT using the RTC as a clock, I just use it's registers to store data.For a reason I don't understand, the RTC's registers get cleared (i.e. all data is set to 0) every time the discharger is unplugged from the power. I saw that plugging a battery to the Vbat pin helps keep the RTC consistent, but my superior claims that it's actually not needed in this case, because I'm only using the RTC's registers and not the clock itself (so the data should be saved regardless of power connection).Is my superior correct, and there's a way to solve this without plugging a battery to the Vbat pin, or is he wrong and the Vbat pin must be fed a battery for the RTC to save it's register's data?Thanks in advance for any help on the subject!

Hi,I have been trying to flash a program into my stm32f103c8t6. but I'm not able to flash neither through stm32cube ide or stm32cubeprogrammer. when i try to flash through cube ide , im getting the following error: Starting server with the following options:Persistent Mode : DisabledLogging Level : 1Listen Port Number : 61234Status Refresh Delay : 15sVerbose Mode : DisabledSWD Debug : EnabledInitWhile : Enabled Waiting for debugger connection...Debugger connectedWaiting for debugger connection...Debugger connectedWaiting for debugger connection...-------------------------------------------------------------------STM32CubeProgrammer v2.17.0 -------------------------------------------------------------------ST-LINK SN : EST-LINK FW : V2J45S7Board : --Voltage : 3.19VSWD freq : 4000 KHzConnect mode: Under ResetReset mode : Hardware resetDevice ID : 0x410Revision ID : Rev XDevice name : STM32F101/F102/F103 Medium-densityFlash size : 128 KBytes (default)Device type : MCUDevice CPU

Hi,for evaluation I'm running STLinux on a STM32MP257F-DK board currently.I found the Linux console is available on one of the USB-ports with the default configuration of that operating system.Quick question: is that Linux console also available on some plain UART-port for that development kit (or for the STM32MP25 in general)? If yes: which port is used?Thanks!

Hi, We have designed a board using STM32WB55 and also ordered evaluation kit. Our company policy requires us to request software, so there is 2-3 week delay until we get it. At the moment I am trying to understand what is the required software to make it possible to program and debug the board.STM32Cube IDESTSW-LINK009 driver for STLINK V3STM32CubeProg (Or does it come with IDE?)STM32CubeMonitor (Also included with IDE?) This is what I have come up with so far. If there are things I have missed or could benefit from, please give me some rope here so I can request all the useful software from my IT department! Best regards,STMDesigner 

error:object of type'touchgfxdesiger.main.project.texts.texttab.textgrid.translationviewmodel' cannot be converted to type'touchgfxdomainmodel.text.models.typogrephy'. Now I can't open my project,so what can i do?

Hello,I am working with STM32 TouchGFX on a Riverdi board. I would like to use the board-specific settings in offline mode. Are there any files available for specific boards? If so, is it possible to transfer those files via a flash drive and use TouchGFX with the specific board on a computer without internet access, by placing them in the appropriate directory?

Hello,Murata has announced that the variable capacitors LXRW0YV201-059 will become obsolete in 2026.https://www.mouser.com/PCN/Murata_PCN_for_Mouser_(LXRW)_Mar._6_2025.pdfThese components are part of the antenna matching/EMI filter circuit in the STEVAL-ST25R3916B schematics.Do you have any recommendation for an alternative reference to replace these capacitors once they become obsolete ?Thanks in advance,Best regards

Hi, I am planning to use the external serial QSPI flash interface with STM32H753. Flash part number is MT25QL256ABA1EW7-0SIT or IS25LP064D-JKLE-TR. Operating voltage 3.3V at frequency of 80MHz DDR. Can you please let me know will there be any concern in using these memories or anything i need to take care in design

Hi,I'm using an ST25DV64KC tag to communicate with an Android app using the st25 sdk and the Mailbox. The problem arises when the app reads a message of the maximum mailbox capacity. In that case, an 0xE4 character appears as the last character but I'm pretty sure the firmware didn't put it. Here is an example of an interaction2025-05-12 08:32:09.466 12263-19515 Iso15693CustomCommand   com.wavecontrol.mtiotmobileapp       D  ==> Send readMsgLength command: 22 ab 02 7f 46 b6 7c 67 51 02 e02025-05-12 08:32:09.480 12263-19515 Iso15693CustomCommand   com.wavecontrol.mtiotmobileapp       D  Response: 00 ff2025-05-12 08:32:09.483 12263-19515 Iso15693CustomCommand   com.wavecontrol.mtiotmobileapp       D  ==> Send readMsg command: 22 ac 02 7f 46 b6 7c 67 51 02 e0 00 ff2025-05-12 08:32:09.588 12263-19515 Iso15693CustomCommand   com.wavecontrol.mtiotmobileapp       D  Response: 00 02 7b 22

Hi ST community,I'm using the STM32F303ZE in a design and need to ensure that the clocks for various peripherals stay within acceptable tolerances (in ppm or %) — especially across the full temperature range (–40°C to +105°C). I plan to use an external HSE crystal oscillator, and I’m trying to validate whether my chosen crystal (in terms of stability and accuracy) will meet the needs of the following peripherals.Could you please help clarify the maximum allowable clock frequency drift for each of these peripherals:USART (1–5)What is the maximum clock drift (in % or ppm) tolerated between the transmitter and receiver over temperature?How do oversampling modes (8x or 16x) and word length (M bits) affect this tolerance?USB FSI understand it requires 48 MHz ±0.25%. Is this tolerance strictly enforced by the USB hardware?SPI (1–3)For slave mode, is there a specified maximum allowable clock skew or drift from the external SPI master?Are there any special considerations when using HSE as the

Hi everyone,I'm working with an STM32 microcontroller and the LoRaWAN stack provided by ST. My goal is to initialize LoRaWAN only when a button connected to pin PA0 is pressed.I verified with a multimeter that PA0 is at 0V when idle and goes to 3.3V when the button is pressed, so the hardware seems fine.In the code, I'm calling MX_LoRaWAN_Init() only if I detect PA0 is HIGH and a debounce time has passed. However, LoRaWAN never starts, even if I hold the button for several seconds.Below is the full main.c file, including the logic for PA0 detection and conditional LoRaWAN startup: /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2025 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LIC