STM32CubeProgrammer (MCUs)

One Quick Observation , V2.23 takes so much time as compare to V2.22 ( windows 64 ) , for Reconnecting MCU & Throwing Error  after setting RDP2. approx 45 seconds by V2.23. while 5 seconds for V2.22 version.  

While fiddling with H745 board to investigate how dual core works, after modifying option byte to BOOT_CM7 = 0 and BOOT_CM4, STM32CubeProgrammer (nor STLINK-gdbserver) refuses to connect to the board with "Error: No STM32 target found". The ST-Link itself is okay. Here is a log from the programmer.22:31:39 : ST-LINK SN : 002F003D3137510E39383538 22:31:39 : ST-LINK FW : V3J5M2 22:31:39 : Voltage : 3.30V 22:31:39 : No STM32 target found! 22:31:39 : ST-LINK SN : 002F003D3137510E39383538 22:31:39 : ST-LINK FW : V3J5M2 22:31:39 : Voltage : 3.30V 22:31:39 : Error: No STM32 target found!How do I regain access to the board?

Hi, I am using the STM32N6 nucleo board to print some application data using the ITM stimulus port 0 over the SWO pin. I am using the dev boot mode.My stlink version is V3J17M11, which is up to date, and my cube programmer version is 2.23.0, which is up to date. Problem statement: My program works in the Cube IDE, and it shows the output in the Serial Wire Viewer tab.Problem 1: When I try to use it with the Cube Programmer, I click the start button, and it says, Serial wire viewer configuration failed. ( elaborated below)Problem 2: When I try to use the J-Link with SWD in the Segger Serial Wire Viewer, the J-Link viewer configuration window just resets my MCU, and the code vanishes.I’ll share my main.c file below.ExplanationProblem 1:I tried a lot of things and read about the Access ports. My system clock is 32MHz, and the TPIU clock is 4MHz. The cube programmer’s SWV asks for the system clock, which I assume is the core clock, so 32MHz, but I have also tried 4, 8, 16, and 64 options.

I have to deploy the STM32CubeProg in an big network.I’ve tried the silent installation, and I’m stuck with:Error: unable to find or load main class com.st.app.MainCaused by: java.lang.NoClassDefFoundError: javafx/application/Application"There is as solution inbundled-java-runtime-missing-or-corruptedIm replaced installer to C:\Program Files\Java and rename folder "jre _1.8***" to simple "jre" and it works for me. Hope it will help you too.  This is not really the solution, or? Is there a clean way for a silent Installation?The version is:2.22.0

When I attempt to power cycle a STM32N6570-DK or NUCLEO-N657X0-Q board via the STM32_Programmer_CLI, I get the following error message:Error: Failed to Power ON the board ! Here is the full log:❯ STM32_Programmer_CLI --power off index=0 --power on index=0-------------------------------------------------------------------STM32CubeProgrammer v2.21.0 -------------------------------------------------------------------Power OFF...Drives the target power pin out of the (onboard) ST-Link.Info: Power ON/OFF maybe not available on your Board [also not available on standalone probes]Power OFF the board finished with success !Power ON...Drives the target power pin out of the (onboard) ST-Link.Info: Power ON/OFF maybe not available on your Board [also not available on standalone probes]Error: Failed to Power ON the board !  However, when I attempt the same command on other Nucleo boards, I don't get this error. Here's the same command run on the NUCLEO-H533RE:❯ STM32_Progr

Hi When I using STM32CubeProgrammer 2.22 GUI and try to control option byte, the page can't display.while CLI can read option bypte. 

STM32CubeProgrammer_CLI STM32TrustedPackageCreator problem with HSM, HSM_P11_Lib.dll cannot be loaded. GUI STM32CubeProgrammer works fine. Where that dll should be located? I Am using win11 pro. 

Hello,I am working on using NRST pin in stm32g031j6m6 as GPIO, but it fails every time. I've changed many option bytes and even options present only on stm32g0x1 have workwd on my chip, except of NRST_MODE. If i want to change this option to 2 (gpio mode) and try to apply, the progress bar stays at 0% endlessly until i quit the STM32CubeProgrammer. I didn't have any problems with communication between nucleo and stm32g031. I tried to program my chip with st links built in nucleo u031 and f303, everytime without success. What else can i try? 

Product: STM32CubeProgrammer 2.22.0 (Linux x86-64) Interface: SWD / STLINK-V3 (dual probes) Target: STM32F427 (DEV_ID 0x419)DescriptionRunning --incremental flash against one STLINK-V3 probe while a second STLINK-V3 is physically connected (but not commanded) produces a deterministic SIGSEGV inside ST_LINKInterface::programMemory.Call chain at crash:DebugInterface::programBufferFlashLoader (@ 0x206400) FlashLoaderMng::Loader_WriteRange ST_LINKInterface::programMemory ← SIGSEGV @ 0x727b81Root cause: use-after-free on Target::loadersTarget::loaders is a BSS-global loader table shared across all code in the process. When the second probe is plugged in, the library's internal USB hotplug callback fires, rescans the bus, and rebuilds — freeing — the loader table while the incremental flash write loop holds a pointer into it. There is no lock observed on the table.The sequence at the crash site (DebugInterface::programBufferFlashLoader @ 0x206400):206631: mov 0x40(%rsp),%rdi

--incremental uses a 32-bit additive byte-sum, not a CRC — sum-preserving content changes are silently skippedProduct: STM32CubeProgrammer 2.22.0 (Linux x86-64) Interface: SWD / STLINK-V3 Target: STM32F427 (DEV_ID 0x419)DescriptionThe --incremental download mode decides whether to skip a flash sector by comparing a 32-bit additive byte-sum of the sector's current chip content against the same sum of the new image.The on-target .stldr CheckSum export (@ 0x200001e9, verified in two loader binaries) uses additive accumulation.Because addition is commutative and linear, any two images whose bytes differ only in ways that cancel (adjacent-byte swap, +1/−1 pair, any permutation within a sector) produce identical sums. Those sectors are silently skipped — old bytes remain on chip and the tool reports success.ReproductionTest images A and B (64 KB, four 16 KB sectors) are constructed so that:Sector 1: bytes at offsets 0x4100/0x4101 are 0x11,0x22 in A and 0x22,0x11 in B — an adjacent swap. Addi

Hello,(ST-LINK + CubeProgrammer UART/USB both failing)I am using a NUCLEO-N657X0-Q board. I cannot flashing my code via the ST-Link ( ST-Link windows driver is installed and detected through device manager and I had already updated the stlink). it throws this error:STMicroelectronics ST-LINK GDB server. Version 7.11.0Copyright (c) 2025, STMicroelectronics. All rights reserved. Starting server with the following options:Persistent Mode : DisabledLogging Level : 1Listen Port Number : 61234Status Refresh Delay : 15sVerbose Mode : DisabledSWD Debug : EnabledInitWhile : Enabled Target unknown error 32 Error in initializing ST-LINK device.Reason: Unknown. Please check power and cabling to target.Then tried with CubeProgrammer to connect via STlink but it connects then quickly drops , here is the log :17:22:24 : STM32CubeProgrammer API v2.20.0 | Windows-64Bits17:22:39 : UR connection mode is defined with the HWrst reset mode17:22:40 : UR connection mode is defined with the HWrs

HelloAs I am trying to connect the STM32N6570-DK board on the STM32CubeProgrammer, initially the STM32CubeProgrammer recognises my device as in the following picture: When I press Connect on the STM32CubeProgrammer I get awarning: Connection to device 0x486 is lostas in the following picture: and then an error that says Data read failas in the following picture: I am using a MacBook Air M3, 2024, but even on windows (running on a virtual machine) I get the same error on the STM32CubeProgrammer windows version.Is there a way to overcome this issue? What could be the cause? Thank you 

Hi.I’m working with a Nucleo H7A3ZI-Q. It used to work fine, but one day after we did some measurements it suddenly stopped refused to download code. I’m now trying to troubleshoot it. When connected to STM32cubeprogrammer, the board is detected well, but it does not connect, and gives me this error: and this error in the fail.txt: The interface firmware FAILED to reset/halt the target MCU I am also able to update the card with STLink Updater through STLink-V3, which I have done succesfully, but the result remains the same. I have tried on a mac and a windows.

 The GUI for the programmer shows:  RM0440 Rev 8 shows:Are ‘BOOT0’ and ‘nBOOT0’ different? As it stands, the programmer requires a value of ‘0’ to boot from FLASH, but the table wants a value of ‘1’. Is the value referenced by nBOOT1 the inverse of the value set in nBOOT0?

Hello,    I have designed a custom PCB using STM32N657I0HxQ and W25Q32JWZPIQ NOR flash. I am following the STM32N6 FSBL Load & Run tutorial https://community.st.com/t5/stm32-mcus/how-to-create-an-stm32n6-fsbl-load-and-run/ta-p/768206 , but have trouble getting the application running. I am using below setup:STM32CubeIDE - v1.19.0STM32CubeProgrammer -v2.21.0STM32CubeMX - v6.15.0I have created a custom external memory loader for W25Q32JWZPIQ and able to connect device in Dev boot mode (BOOT1 -1, BOOT0-0) and flash FSBL-trusted.bin and Appli-trusted.bin at 0x70000000 and 0x70100000 respectively. Also, I am able to verify the contents.  When I connect to Flash boot mode (BOOT1-0, BOOT0-0), Led is not blinking. I tried to debug by setting device into Dev mode and run FSBL directly into internal RAM, I can see the FSBL is properly copying the application code to 0x34000000 but JumpToApp() ends up in fault.I have tried the belowFSBL-t

I recently tried to use -noreconnect via the cli on windows and it still attempted to reconnect.I was connected via UART and programming option bytes. Here was the command I used:& "C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin\STM32_Programmer_CLI.exe" -c port=COM14 br=115200 -noreconnect -ob ndbank=0x0I see that there was fix put in for linux. Im wondering if the same bug exists on Windows.Thanks,Daniel 

I am using an STLINK‑V3ISOL and need compatibility with a setup/documentation that specifies ST‑LINK/V2.Is there any jumper setting, hardware configuration, or firmware option that allows the STLINK‑V3ISOL to operate as an ST‑LINK/V2 device?If not, is there a recommended adapter or pin mapping to make the V3ISOL interface compatible with a V2 connector/pinout for SWD/JTAG debugging?Any guidance or experience would be appreciated.

Hello, I'm trying to program a custom board equipped with an STM32WBA23CE.I've tried wiring it from a Nucleo board (MB1801D), but the programming is failing.CN3 pin5 -> Custom Board VDDpin9 -> PA13pin11 -> PA14Even when I press Connect in CubeProgrammer, an error dialog appears. It works normally when I disconnect the wiring to the custom board, so it doesn't seem to be an issue with the application or the Nucleo board.The custom board does not have 32 kHz support.Are there any resources or descriptions that might be helpful regarding this method?

Hi everyone,I'm using STM32 Cube Programmer CLI to port an SBSFU example to STM32U5G9 platform (from U585). Other than shell script mess and no IOC files in this examples, I've managed to port the example and run it by using ST Link programmer under both Linux and Windows.The problem is that the newest release 2.20 has its J-Link functionality completely broken in Linux (I'm using Kubuntu 22.04 and 24.04, also tested in regular Ubuntu). Any command to STM32_cube_programmer_CLI ends up with:Error: Could not connect to the J-Link/Flasher, Library not found !The underlying issue is that libjlinkarm.so is not linked to the CLI executable: ldd shows it's linked for older versions, but no linkage for v2.20. I'm guessing this has happened since ST was finally moving away from weird versioned so names to non-versioned so's: i.e. libjlinkarm.so.7 -> libjlinkarm.soI'm hoping that someone from ST will read this message since the issue is not possible to resolve without re-linking... So @s

It seems like it's been over a year since reports surfaced that the ST-Link interface isn't working on Snapdragons.Are there still no ST-Link interface drivers available for Snapdragon CPUs?

Hi,I’m setting up a bash script (under Ubuntu Linux) to automate STM32H563 provisioning for my application using the command-line version of STM32 Cube Programmer. As part of this script, I’m setting it up to automatically perform Full Regression prior to new provisioning if the board is already provisioned. (This is being used for testing and software development, so I am likely to need to do this.)The help text tells me that I can use the “key”, “cert” and “per” arguments on the command line, along with debugauth=1, to specify paths to the key, certificate and requested permission to request debug authentication. However, the application seems to ignore these arguments completely and always asks for them to be entered in the console, so I can’t perform a scripted Full Regression as should be possible.I tried working around this by piping the output of a bash printf command into the application instead. Oddly, this seems to work for passing in the key and certificate but the selection

Hi,I am creating an External QSPI Loader for STM32U5G7VJTx with MT25QL128A flash.* QSPI driver is implemented and tested successfully in a standalone STM32 project.* Read, Write, and Erase operations are working correctly.* For the External Loader project, I used the loader template files (Dev_Inf.c, Dev_Inf.h, linker script, etc.) and integrated my QSPI driver.* The loader builds successfully and generates the .stldr file without errors.However, when I load the external loader in STM32CubeProgrammer and try to program a .bin file to the external flash, I get the error: "Failed to download file".What additional changes are required after completing the QSPI driver coding step? Are there any common issues related to Init(), Write(), SectorErase(), linker configuration, or Dev_Inf settings that could cause this error?Any guidance would be appreciated.  

Dear Support Team,OS: Windows 11Version of tool: v2.22.0When using the GUI for setting and exporting/importing option bytes on an STM processor, I face this issue when I want to import again a exported option bytes json (using the same version.)Is there a debug/verbose mode to be able to trace back what is the error ?  Best Regards,Mohammed Ismail