Solved

ProblemInstalled version 1.17 of the stmcube ide. Need the .ioc code generation feature to work. The most convenient way to do this is to login so the ide can download firmware. I have tried to login. Login failed multiple timesTried1. Turn off firewall2. Run STMCube IDE as adminstrator3. Run installer as administrator4. Use mobile hotspot5. Installing newer and older versions of STM6. Installing the program on a different PCNone of the above options worked  

 I am using STM32CubeIDE version 1.19.0, and I am encountering a network-related issue.ProblemI receive the error:“Authentication Error Manager – Connection lost”Troubleshooting doneVerified that my internet connection is working properlyTried using a mobile hotspot instead of Wi-FiChecked connectivity in the Firmware Updater (status shows OK)System detailsOS: Windows 11 Pro Laptop: Lenovo ThinkPad T14Board: STM32F407VGT6 / STM32F407 DiscoveryAdditional contextEven though the Firmware Updater indicates a valid connection, the authentication error still occurs across different network setups.QuestionWhat could be the cause of this authentication/connection issue in STM32CubeIDE, and what steps can be taken to resolve it? 

Hi,We are currently developing a solution based on the STM32WBA65RIV6 MCU, and we would like the internal RTC to remain active while the MCU is powered down.We assume that this is possible, and we would like to clarify the following points:For how long does the RTC retain its values after the MCU is powered down (by default)?Is it possible to connect a backup capacitor or battery to supply only the RTC or part of the MCU in order to extend the retention time?We also want to know if there is any documentation available on this topic. We have not been able to find detailed information.Thank you in advance.Best regards,Luis

I am using STM32CubeIDE for a project using custom hardware with a STM32G0B1CBT6.I recently hit a bug where my code was doing a 32-bit write to an address that wasn't on a 32-bit boundary (off by 2 bytes) and a Hard Fault was generated.I've corrected the code to avoid this, but this same code worked OK on an earlier project - which used Keil uVision and a STM32F103C8T6.I've seen references to compiler options to control this behavior, but I've not found them in CubeIDE or Keil.  Am I wrong here?  Or can someone point me to where those options might be?  Or is this some kind of difference between these two chips?Also: I'm on the fence about whether this is a good feature or not.  On the one hand, avoiding unaligned memory  seems fairly easy.  On the other hand, Hard Faults really cause havoc in my world. 

In STM32CubeIDE, I can compile C++ code in the project. The CMake file generated for the VSCode extension doesn't work with C++. Is there a way to use C++ code with less hassle than trying to get around this by hand?

Hi,I am working with the STM32WB5MMGH6TR and would like to achieve the following:Stream GATT data to a mobile phoneSimultaneously play simple audio to BLE earbudsThe audio requirement is modest: a tone that rises and falls in a sine-wave pattern (no music, no complex audio, no high-quality audio). The frequency should sweep between 500 Hz and 2 kHz, with a modulation rate of up to 60 Hz.Is this feasible using the standard ST BLE stack for the STM32WB5MMGH6TR? The key requirement is that both operations run concurrently.If it is possible, could you please outline the recommended approach?Thank you as always.

Hi all, I am trying to implement simple USB-FS communication on a BlueCoin board (STEVAL-BCNCS01V1). I am following the official STM tutorial on USB CDC and referencing the official SW package for BlueCoin. So, for USB I need PLL source from HSE clock: BlueCoin schematic shows that there is a crystal oscillator @16Mhz (NDK NX2520SA) installed directly on the board, so I configured RCC HSE as Crystal/Ceramic Resonator; the problem is that the function HAL_RCC_OscConfig(&RCC_OscInitStruct) in SystemClock_Config retrieves HAL_TIMEOUT as a result. Timeout value is default at 100ms. Clock configuration in STM32CubeMX is as suggested in the official USB tutorial: My current debug configuration has BlueCoin connected via SWD to a NUCLEO-G0B1RE, as suggested in UM2240 (see page 14). Could you please help me? Am I missing something? Thanks to anybody who can help!

Hi ST, This is just to let you know that STM32CubeMX version 6.17.0 does not generate correct cmake file for the STM32WL33 and this error results in the microntroller not starting up correctly but hangs in function  SystemInit() in system_stm32wl3x.c.   The problems is that the wrong is -mcpu is generated. The problem can be found in the file -> path/to/dir/cmake/gcc-arm-none-eabi.cmake # MCU specific flags set(TARGET_FLAGS "-mcpu=cortex-m4 ") // wrong for the WL33 # MCU specific flags set(TARGET_FLAGS "-mcpu=cortex-m0plus ") // correct for the WL33 Ola

Hi everyone,I’m currently working with STM32 Secure Boot and Secure Firmware Update (SBSFU) and integrating it with my custom application. I’m trying to design the project in a modular and scalable way for long-term use, and I would really appreciate some guidance from those who have worked with SBSFU in production. Current ScenarioMCU: STM32 (Cortex-M series)Bootloader: SBSFUApplication: Custom firmware using HAL, middleware, and CubeMX-generated codeDevelopment tool: STM32CubeIDE Challenges I’m Facing1. Shared Drivers & MiddlewareBoth my bootloader and application require:HAL DriversSome middleware components What is the best way to manage duplication vs sharing?Should bootloader and application maintain completely separate copies of Drivers/Middleware?Is there any recommended way to keep them in sync without tight coupling? 2. Impact of .ioc ChangesI use CubeMX via .ioc for peripheral configuration.If I:Add a new peripheralModify clock or pin configurationHow

Hi Team,I have successfully integrated and run SBSFU with my custom application, and it is working as expected.Currently, I am transferring the .sfb file .via USB to the DWL_SLOT. Once  the transfer is complete, I trigger a reset using    NVIC_SystemReset(), and the process works fine.I have a few questions regarding the .sfb header. It contains fields such as:FW Tag (SHA-256)Header SignatureFirmware Size (FwSize), etc.My questions are:Using FW Tag (SHA-256) for validationIs it possible to use the FW Tag (SHA-256) to validate the received image in the DWL_SLOT before performing the reset?If yes, could you please guide me on the correct process to implement this?Current CRC-based approachAt present, I am calculating a CRC for the .sfb file after it is generated by the Python script. I then transfer both:The .sfb fileA separate CRC fileOn the firmware side, I recompute the CRC from the received data and compare it with the provided value. If it matches, I proceed with

Hello,I am trying to port the official BLE_Ota example from STM32CubeWB (WB55 project) to an STM32WB30 device, but I am facing multiple compilation issues after importing the project into STM32CubeIDE.After configuring STM32_WPAN and generating the project for STM32WB30, I get many errors such as:RTC_HandleTypeDef unknown typeIPCC undeclaredFLASH_ECCR_* undeclaredSCB_* undeclaredLL_* functions not declaredHAL and LL drivers missing or inconsistentIt seems like the project is not correctly recognizing the STM32WB30 device definition, and many peripherals (RTC, IPCC, FLASH, RCC) are not properly included or enabled.I already tried:Adding STM32WB30xx define in the compiler preprocessorEnabling STM32_WPAN middleware (BLE stack full mode)Checking stm32wbxx_hal_conf.hHowever, the issues persist and the project still behaves as if it is partially configured for STM32WB55.My questions are:Is the BLE_Ota example officially supported for STM32WB30, or only for WB55?Are there any specific limitat

I want to vary the duty cycle of two adjacent DAC values of an STM32G473.  I am using DAC1 channel1 and channel2 for the output. I want to load DAC1s DHR12Rx registers via DMA when TIM3 hits output compare values.  I set up a memory to peripheral transfer for each TIM3 channel and set the CMAR and CPAR registers to the memory location of the DAC values and the peripheral addresses of the DAC DHR12Rx registers.   I have been able to make this configuration work for making the TIM3 OC events trigger loading of TIM20's CCR registers from memory, but so far, the DMA transfer won't load the DHCR12Rx registers for the DACs.  Are there additional configuration settings to make this work?  CubeIDE\HAL has configuration options for initializing the DAC in DMA mode, but I need multiple triggers the make the duty cycling work.   

I have an old Ubuntu 18.04 system which allows STM32CubeIDE to run, but the STM32_Programmer failed because libm.so and libc.so were wrong. I found glibc-2.30 and copied the libraries into the same directory as the STM32_Programmer lib. Now I just get a seg fault, even when trying to just get the version number:bin/STM32_Programmer_CLI --version Segmentation fault (core dumped)Is there any way to figure out what might be the problem?   

I’m currently working on implementing and testing Flash ECC on my controller. According to the datasheet, the device supports ECC, and I can see that it is managed through the FLASH_ECCR register. However, I’m facing some difficulty verifying whether ECC is functioning correctly. Specifically: I am unable to find any ECC-related flags in the FLASH status register. I’m not sure how to intentionally generate an ECC error to validate my implementation (e.g., to confirm that error handling via NMI/interrupt is working as expected). Could anyone please guide me on how to reliably trigger a Flash ECC error for testing purposes on this controller? Any suggestions, references, or example approaches would be really helpful.

Dear Community, dear STMicro, I'm trying to encrypt data on an STM32WL55JC device using the STM32CubeExpansion_Crypto_V4.5.0 library and then using Python on the PC to decrypt it again.I've taken the example code for RSA encryption from the librarySTM32CubeExpansion_Crypto_V4.5.0/Projects/NUCLEO-WL55JC/Applications/RSA/PKCS1v2.2_EncryptDecryptand adapted it.I've created an RSA 2048 bit key on my PC using this code:private_key = rsa.generate_private_key( public_exponent=65537, key_size=2048) pem = public_key.public_numbers() public_exponent = ["0x%02s" % e[i:i+2] for i in range(0, len(e), 2)] n = "%X" % pem.n n = "0" + n if len(n) % 2 == 1 else n modulus = ["0x%02s" % n[i:i+2] for i in range(0, len(n), 2)] f = open("pub.c", "w") f.write("public_exponent[] = {%s}\n" % ", ".join("%s" % s for s in public_exponent)) f.write("modulus[] = {%s}" % ", ".join("%s" % s for s in modulus)) f.close() From this code I get something like thispublic_exponent[] = {0x01, 0x00, 0x01} modulus[]

STM32CubeIDE for Visual Studio Code v3.8.0 serverRtos fails to recognize symbolFileName when attaching to running target. This causes the rtos viewer to not work properly.None working setup: "type": "stlinkgdbtarget", "request": "launch", "name": "CM7 master STM32Cube: Launch ST-Link GDB Server", "origin": "snippet", "cwd": "${workspaceFolder}/", "deviceName": "STM32H747BIT6", "deviceCore": "Cortex-M7", "serverReset": "None", "imagesAndSymbols": [ { //"imageFileName": "${workspaceFolder}/executable.elf", "symbolFileName": "${workspaceFolder}/executable.elf", } ], "serverRtos": { "enabled": true, "port": "60000", "driver": "freertos", "driverPort": "ARM_CM7" },Debug console output:RTOS proxy: STMicroelectronics RTOS Proxy. Version 0.18.1 Copyright (c) 2026, STMicroelectronics. All rights reserved. Failed generate debug info Loading RTOS driver... FreeRTOS Connecting to GDB server 127.0.0.1 on port 61234 ... RTOS Proxy: readelf: Error: 'undefined': No such file

I am trying to integrate Crypto lib to NUCLEOF303RE Board, Any guide or any suggestions would help 

Hallo,is it possible to detect in my code whether it was just loaded and started under debugger? The code should behave deifferant as usual because flash loader writes into RAM and .noinit section is modified because of this.I have already checked RSR register. It looks the same as after software reset: CPURSTF, PINRSTF and SFTRSTF are high.Moreover RSR gegister is independent from debug configuration: Debugger / Reset behaviour. I use ST-LINK v3 with ST-LINK GDB server. 

Hi everyone, I saw that ST give a C driver for STUSB4500 and even have a binary to test the 4531 on some boards.Can ST provide a C library for this chip ? Thanks.

I wanted to try out the new STMCubeMX2 with one of the suitable STM32C5 MCU and I get this errorNot sure what does this mean, is there any certificate needed to use STMCubeMX2 ?

This is one of those issues where I can hardly figure out what to seach for...I have a board (with an STM32G431) where I can activate the BOOT pin with a switch, to start the system bootloader. This allows the customer to upload a new application version using STM32CubeProgrammer and the microcontroller's USB port.However, on this board, the application doesn't run when the bootloader is done. On other boards with other micrcontroller types, the "Run after programming" feature works nicely, but not on the one with an STM32G431.Even with an ST-LINK V3 connected to the board, I cannot see with certainty in what state the microcontroller ends up, or what the program counter says, as the ST-LINK loses its connection with the microcontroller. When I reconnect, STM32CubeProgrammer claims that the CPU is halted. Why the CPU is halted, I have no idea. But it is quite annoying, as the board is a tiny thing in a very large industrial machine, where they should be able to upload new firmware

Hi, For STM32H753IITx + ST67W611M1 on a custom board with FreeRTOS: What is the recommended integration approach for X-CUBE-ST67W61 on STM32H753? Specifically: Is STM32H753 officially supported/recommended as a host MCU for ST67W611M1? For H753, is it recommended to use the middleware directly from CubeMX? Are there known FreeRTOS version compatibility issues between CubeMX-generated FreeRTOS and X-CUBE-ST67W61 on H753? Thank you.

I am using STEVAL-MKI109D + STEVAL-MKI238A. I have evaluated motion-stationary FSM example as it seemed closest to what we want to use for our application. It seems to work fine, however it is too sensitive and needs some upgrades.What I want to achieve:Setup timer (TI3) to some value such such as 5 seconds. During this 5 second period, I want to detect specific number of events above certain threshold (GNTH1). If specific number of events were detected during 5 second period, generate an interrupt and repeat over and over again. If specific number of events were not detected during that 5 seconds period, just reset the counter and repeat.My cofiguration:It sounds like a simple requirement but I cannot achieve it using FSM.I tried to achieve this using 2 FSM's: FSM1:FSM1 is responsible for incrementing long counter everytime the GNTH1 is reached. FSM2:FSM2 is responsible for resetting long counter. I don't really understand why the MEMS Studio forces me to put STOP command at

Hey there,I'm currently working on an audio application for the STM32U5A5 (which I'll later port to the STM32N657), using MDF.The application closely follows the MDF/ADF examples for audio recording found in the U5/N6 Cube firmware packages, with the difference that it does not output the transformed audio signal immediately via SAI, but instead stores it in a large buffer to download it later via the STMCubeProgrammer.Although the application generally works great, it does not record more than ~2 seconds of audio, even if I increase the size of the storage buffer (e.g., to a size corresponding to 4 seconds of audio recording capacity). No matter how large I set the buffer, the function HAL_MDF_AcqCpltCallback is called approximately 2 seconds after the recording starts. Within the implementation of this function, HAL_MDF_AcqStop_DMA is called to stop the recording.I would be interested in the criteria according to which the HAL_MDF_AcqCpltCallback function is called. I would

I downloaded stm32cubemx-win-v6-17-0.zip on Windows 11 direct from the ST web page:STM32CubeMX | Software - STMicroelectronicsDownloaded file size 676,525 MBBut it does not uncompress and install, all I get is a kind of ghost window that tries to launch but then aborts.Any ideas please?Kind regards,Al