STM32 MCUs Software development tools

Hi all  /* * usb_device.h * * Created on: Aug 5, 2025 * Author: mmadha */ #ifndef USB_DEVICE_H_ #define USB_DEVICE_H_ #include "usb_standards.h" struct UsbDevice { /// \brief The current USB device state. UsbDeviceState device_state; /// \brief The current control transfer stage (for endpoint0). UsbControlTransferStage control_transfer_stage; /// \brief The selected USB configuration. uint8_t configuration_value; /** \defgroup UsbDeviceOutInBufferPointers *@{*/ void const *ptr_out_buffer; uint32_t out_data_size; void const *ptr_in_buffer; uint32_t in_data_size; /**@}*/ }; #endif /* USB_DEVICE_H_ */  For some reason, I am getting the error Description Resource Path Location Typeexpected ';', identifier or '(' before 'struct' usb_device.h /clk_test/Core/Inc line 16 C/C++ Problemwhich I don't understand. Any suggestions on what could be causing this error would be greatly appreciated. Kind regards

Hi, Do you know the meaning of this icon (I think Tulip)?Thanks.

 in cube mx (cube ide version Version: 1.19.0)   i can select i2c3 for STM32F411CEU6bun can someone verity that this chip in ufqfpn48 support i2c3?? 

    Dear forum members,I work on a project that repeatedly reads 3692 pixel intensity values from a linear CCD pixel-array. The readout process and export of the data via USB is working fine.Now I want to enhance the application by multiplying each pixel value with its specific correction factor to compensate for the individual sensitivity. I struggle to find the right method to import the correction values from a text-file.At first I tried to add a user include file that assigns the float values (in the range 0.90 to 1.10) to the array 'g_PixFactor' that is declared in the 'main.c' file. This approach produces errors like "re-definition of array 'g_PixFactor' ". I also tried to do the declaration and the assignment of the values in the include file, which gave other complaints. My questions are:   - Is the concept of importing values by an include file a workable method to solve my challenge?    - Can a more experienced forum member provide

When I copy a project within the IDE, it doesn't update the file references and the IOC file doesn't open. Can we have this fixed asap please? 

Hello,I'm encountering a connection error with STM32CubeProgrammer when trying to connect to my NUCLEO-H7A3ZI-Q board.**Error Details:**- Error: "No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication"- Board: NUCLEO-H7A3ZI-Q- STM32CubeProgrammer version: v2.19.0- OS: Windows 64-bit- ST-LINK SN: 001C004330325115373336- ST-LINK FW: V3J15M7- Board Voltage: 1.22V**What I've tried:**- Checked USB cable connection- Verified ST-LINK drivers installation- Tried different USB ports- Board appears to be detected (shows serial number and firmware)**Question:**How can I resolve this "No STM32 target found" error? Is the 1.22V voltage reading normal, or could this indicate a power issue?Any help would be greatly appreciated!Best regards

I am trying to use VScode to debug code on a STM32U5 nucleo board connected to another machine.To do that, I start VScode on my machine and use the "connect to Host" command, open the project on the distant machine and try to launch debug. Both machine run Ubuntu 22.04.Does it work for anyone ?At that point I get this:[2025-08-04T10:02:54.896Z] SERVER CONSOLE DEBUG: onBackendConnect: gdb-server session connected. You can switch to "DEBUG CONSOLE" to see GDB interactions. /usr/bin/stlink-server -p 50000 -cp /opt/pqs/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32CubeProgrammer --swd --serial-number 002400233532510831333430 --halt -m 0 /usr/bin/stlink-server: invalid option -- 'c' /usr/bin/stlink-server: unrecognized option '--swd' /usr/bin/stlink-server: unrecognized option '--serial-number' /usr/bin/stlink-server: unrecognized option '--halt' /usr/bin/stlink-server: invalid option -- 'm' Info : default port : /opt/pqs/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM3

Case Description: Dear All,My STM32Cube IDE taking lost of time to compile to code previously it was taking 20sec only but now it taking 10 min and compile 20% code, please suggest what the issue,CPU - I7RAM - 16 CPU Utilization - <30%RAM utilization - 10GB

Hi,I have a custom board that duplicates the STM32N6 Disco schematic for an external flash MX66UW1G45G. I configured  the .ioc to configure XSPI2 and XPSIM with PN6 pin for the clk. I use STM32CubeProgrammer with the external loader activated for MX66UW1G45G. The CubeProgrammer connects via a J-Link cable, and I select the first few blocks to erase. When I click Erase Selection, the oscope shows activity on XSPIM_P2_IO0 and XSPIM_P2_IO3, but nothing on the clock. I also didn't see any activity on the NCS1, it remains high. The Clock Configuration tab in the .ioc file shows an active 66.66MHz clock signal to XSPI2, with HCLK as a source.The .ioc has XSPI2 and XSPIM enabled for all three domains - FSBL, Application, and ExtMemLoader. I attached the .ioc. Huge thanks for help!  

I just upgraded STM32CubeIDE from 1.17 to 1.19 which in turn upgraded MX from 6.13 to 6.15Prior to updating, in MX Clock Configuration I could clock the SPI system on the STM32H533 at the same rate as the CPU clock (250 MHz with no error). Now, to avoid the configuration error, I have to reduce it to 125 MHz.My code ran fine at 250 MHz in the previous version. IS THIS A FIX OR A BUG?Thanks!

SummaryWhen flashing the STM32L431CCT6 (Device ID=0x435) using STM32CubeIDE v1.19, the MCU intermittently fails to boot from user flash (0x08000000), instead jumping to system memory (around 0xfff1...). This causes the Reset_Handler to crash or fail. Downgrading to STM32CubeIDE v1.18.1 resolves the issue, suggesting a flash loader bug in v1.19. Non working:CubeIDE version: 1.19.0Cubeprogrammer version: 2.20.0Working:CubeIDE version: 1.18.1Cubeprogrammer version: 2.19.0Issue DescriptionSymptoms:Flashing with STM32CubeIDE v1.19 results in intermittent failures, with the MCU breaking at addresses around 0xfff1... (system memory).The Reset_Handler sometimes crashes, likely due to incorrect booting.The issue is consistent on one laptop (v1.19) but absent on another (v1.18.1).Cause: Per a previous ST Community post, the PEMPTY flag is maybe not being cleared properly by the flash loader, causing the STM32L431CCT6 to boot into system memory instead of user flash. Reference: [ST Comm

When i enter the programmer I get a signal to upgrade to v2.20.The process of downloading appears to be proceeding ok but at the end the program just shuts down. When I rerun again the v2.18 comes up and the system asks me to upgrade again to 2.20.

In my project for an STM32H7S3, I have a number of GPIO settings.However, every time I open the file, one particular pin has its settings reverted to the defaults.Also, if I save the IOC file without making any changes at all, I can see in the diff that the settings for that pin have been removed:I'm currently using Cube 6.15.0, though this file was created with an earlier version.I'm not willing to share my IOC file here, though I'd be happy to send it privately to someone at ST.(See also another post by me about settings being lost without any action on my part.)Thank you.

I have installed STM32Cube IDE and created project successfully.Generated basic programming and tried to create google test to create test cases. But while creating C/C++ Unit under C/C++ tests getting error in C/C++ application in Main tab.Attached the screenshot of that error.

Hello Board,I hope you are all having a great summer. I am currently trying to configure the 144 devolopment board with the STM32H723zg chip, to run the built in SAI peripheral. Specifically I want to transmit a frame of 256 bits, with 16 slots and slot data size being 16 bit. I have set the first 9 channels to be active, and the remaining to be inactive, see screen shots or attached file. After, configuration I went to main.c and created a frame of 16 slots, and filled the first 9 slots with hex 0x3FFF (0011 1111 1111 1111) and remaining inactive slots with 0. I then called the HAL_SAI_Transmit, and implemented a short delay after, in order to single out the frames being send through the serial data line.When proping using my osciliscope, I found that binary clock and frame clock works as expected operating at 8.192 MHz and 32kHz respectively. However, I also found that the SDATA seem to send more then one data frame, and that all the data is corrupted, or not looking like I expe

NUCLEO-H723ZG (MB1364)Please verify the code and check ? /* * 001led_toggle.c * * Created on: Jul 31, 2025 * Author: relfo */ #include<string.h> #include "stm32h7xx.h" #include "stm32h7xx_gpio_driver.h" void delay(void) { for(uint32_t i=0;i<500000;i++); } int main(void) { GPIO_Handle_t gpioled,ledbutton; memset(&gpioled,0,sizeof(gpioled)); memset(&ledbutton,0,sizeof(ledbutton)); gpioled.pGPIOx=GPIOB; gpioled.GPIO_PinConfig.GPIO_PinNumber= GPIO_PIN_NO_14; gpioled.GPIO_PinConfig.GPIO_PinMode=GPIO_MODE_OUTPUT; gpioled.GPIO_PinConfig.GPIO_PinSpeed=GPIO_SPEED_FAST; gpioled.GPIO_PinConfig.GPIO_PinOPType=GPIO_OP_TYPE_PP; gpioled.GPIO_PinConfig.GPIO_PinPuPd_control=GPIO_NO_PUPD; ledbutton.pGPIOx=GPIOC; ledbutton.GPIO_PinConfig.GPIO_PinNumber= GPIO_PIN_NO_13; ledbutton.GPIO_PinConfig.GPIO_PinMode=GPIO_MODE_IT_RT; ledbutton.GPIO_PinConfig.GPIO_PinSpeed=GPIO_SPEED_FAST; ledbutton.GPIO_PinConfig.GPIO_PinPuPd_control=GPIO_NO_PUPD; GPIO_Periclockcontrol

Hello everybody,I am trying to generate a project for the STM32H7S78 using the latest version of STM32CubeMX. However, when I click on "Generate Code", the process stops at "Copying library files" and does not proceed any further.I usually work with IAR Embedded Workbench for ARM (v9.40.2), but I also tried using STM32CubeIDE, and the issue occurs there as well.Do you have any idea how to solve this problem?Thank you very much in advance! 

Hi,In CubeIDE it does not generate any compile error,if function is defined inside function int function_out(int i) { int function_in(int y) { } }and comparisons is written in format (0 < myVar < 100)if(0 < myVar < 100) { }As I know these are not allowed in C.Edited to apply source code formatting - please see How to insert source code for future reference.

Hello, all,I'm using STM32CubeIDE to design my first STM32 micro-controller circuit. I've used the tool to assign functions to about 20 pins on the micro-controller so far. Now, I'm at the stage where I'm creating the schematic and connecting external circuitry to the micro-controller pins.Is there an easy way to get a list of the pins I've assigned so far, along with User Labels, so I can go right down the list and wire up the circuits? What I'm doing so far is to keep the STM32CubeIDE open on one monitor and view the pin-out view, and work my way around the chip, wiring pins as I go. Is this the most efficient way to work? Is this how most others do it? I wondered if I was overlooking some built-in function of STM32CubeIDE to perform this task.Thanks for your advice and suggestions.-Kevin 

Dear @Tesla DeLorean and @KDJEM.1 I am using NUCLEO-G491RE board and i want to create external flash loader for W25Q64JVSSIQ QSPI flash memory. I used external loader files from Github and build the .stldr file and placed in CubeProgrammer. when i try to read from 0x90000000 location, i am getting read failure error. I used the below path to create external loader for W25Q64JVSSIQ QSPI flash memory,https://github.com/STMicroelectronics/stm32-external-loader/tree/contrib/Loader_Files/other%20devicesDriver code is working fine since I am able to see the data in memory mapped mode with test code provided in the github link.But, when create a external loader using github files and placed .stldr file into cubeprogrammer and working on read/write/erase and these operations are failing.Could you please check my project and do needful. PFA for my loader projectThanks

I cannot enable DCMI for STM32H753ZIT in STM32CubeMX version 6.15.0. I'd assume DCMI can be indeed used and that this is just a bug on CubeMX's part, but I'd like to verify before I do any orders. Related:- https://community.st.com/t5/stm32-mcus-products/minimum-clock-speed-and-enabling-pssi-problem/td-p/709772- https://community.st.com/t5/stm32cubeide-mcus/dcmi-cannot-be-used-on-the-latest-revision-cubeide-1-15-1-with/td-p/691876

 Folks,I suddenly have this weird thing where when I set a breakpoint in the Cube IDE it doesn't work, I don't get the usual blue symbol and I do get the one above. I can't even make out what it's supposed to be to Google it. Anyone seen this and know what's going on please?Thanks!

I have a NUCLEO-H7S3L8 board, and I am unable to debug any of the projects. I receive a sigtrap error upon debugging. I have tried multiple projects in ST's Github. STM32CubeH7RS/Projects/NUCLEO-H7S3L8 at main · STMicroelectronics/STM32CubeH7RSAll projects have the same issue.After further investigation, we have determined that the default start address for the application is incorrect. If I make a fresh project and select the chip itself rather than the eval board during project setup, I am able to debug.Is this a known issue with this NUCLEO board?Is there a way to change the address so we can explore the example projects?Is there an alternative NUCLEO board that is not in the R/S family that I should explore instead?Thanks 

Hi all,I followed this STM32CubeIDE tutorial to debug an STM32H7S3L8 project running from external flash (OSPI NOR). After flashing and starting the debug session, I get the following error:Break at address "0x8000B2C" with no debug information available, or outside of program code.Here is the log from STM32CubeProgrammer:STMicroelectronics ST-LINK GDB server. Version 7.11.0 Copyright (c) 2025, STMicroelectronics. All rights reserved. Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : Enabled Waiting for debugger connection... Debugger connected Waiting for debugger connection... Debugger connected Waiting for debugger connection... ------------------------------------------------------------------- STM32CubeProgrammer v2.20.0 ------------------------------------------------------------------- Log output file: C:\Users\Admin\AppData\Loca

helloi have theVersion: 1.19.0Build: 25607_20250703_0907 (UTC) Build Analyzer not working not in auto refresh not in manual refreshi test every step i found online! nothingi reinstall the IDE nothing any idea, or any other way to check flash ram information thanks