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Hello everyone.I have recently made my own STM32 board based on the STM32F405. After soldering all the components and testing all pads and connections, finding them to be wired correctly and checking that the 3.3V is being supplied to all the correct pins, I tried to upload some code, but to my shock, the STM32F405 isn't establishing a connection via the ST-Link V2 nor the USB cable. After trying multiple fixes, I suspect the issue might be the STM32F405 chip that I got off AliExpress itself. Before taking any further steps to replace it, I decided to post a question here for review in case the problem was in my PCB design. And sure enough, I had misplaced the chip pin due to the faulty pinout diagram I used as reference.I have since fixed the chip's orientation and rechecked all pad and pin connections, as well as the 3.3V supply, and found everything to be correct; yet I still cannot get the STM32 CubeProgrammer or IDE to connect with my board using the ST-Link V2 or a

Hi all - I have a problem getting DMA working with SPI, for communication with an MCP3564R ADC as one task in a complex project running on FreeRTOS. I have made a stripped-down version of the project that just does the ADC reading task. It runs on a bare Nucleo board and illustrates the basic problem which shows up from the first transmit, so a connected ADC isn’t needed to see the problem.The code uses SPI3 at 20MHz (although the problem occurs at lower speeds as well)The GPIO pins I’m using are not the defaults:GPDMA1 is configured with two channels for SPI3 TX and RX:My code can be configured to use the HAL SPI DMA APIs or the interrupt APIs like so:static uint8_t write_register(const uint8_t * reg_write_cmd_p, uint8_t num_bytes){ HAL_StatusTypeDef hal_status; BaseType_t wait_ret_val; uint32_t notify_bits; uint8_t ret_val = 0; /* Failure */#if (MCP3564_HAL_SPI_MODE == MCP3564_USE_HAL_SPI_DMA_MODE) hal_status = HAL_SPI_Transmit_DMA(&ADC_SPI_PERIPH_HANDLE, reg_write

The following repository contains examples for creating 'normal' type of external loaders, i.e., to be used with the "-el" argument of the STM32CubeProgrammer (e.g., with output "STM32CubeProgrammer/bin/ExternalLoader/MX66UW1G45G_STM32H7S78-DK.stldr"):https://github.com/STMicroelectronics/stm32-external-loader Where can the source code examples be found for the 'SFIx' type of external loaders, i.e., to be used with the "-elbl" argument of the STM32CubeProgrammer (e.g., with output "STM32CubeProgrammer/bin/ExternalLoader/MX66UW1G45G_STM32H7S78-DK-SFIx.stldr")?

Hi everyone,I am working on the STM32MP257-EVAL board, where my Cortex-M33 application requires both FreeRTOS and OpenAMP middleware to run together.After referring to the STM32CubeMPU packages, I found separate example projects:One for FreeRTOSOne for OpenAMP (running in bare-metal environment)I tried combining both examples into a single application. The FreeRTOS part is working correctly, but OpenAMP hangs during initialization.After debugging, I noticed that libmetal is getting compiled for the generic platform instead of the FreeRTOS platform. To address this, I changed the toolchain configuration from:-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-generic-gcc.cmaketo:-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-freertos-gcc.cmakeHowever, this results in multiple compilation errors. It seems the provided libmetal port may not be fully compatible with the FreeRTOS platform setup.Has anyone successfully integrated FreeRTOS + OpenAMP together on STM32MP257 (M33 core)?Are there any

I was testing stm32 adc interrupts but the IRQ is not working properly and idk what is the matter, I wasted a lot of time in debufgging it but didn’t get any leads. Please help me out, here is the link of the project:GitHub Repo

Hi STM32 Community,I am currently selecting an STM32 MCU for a timing-control application and would like some guidance on the required timer architecture.My requirement is:Input trigger: 45 Hz, 50% duty-cycle signal. After receiving the trigger, the STM32 should generate 8 PWM outputs with a configurable delay. The required trigger-to-output delay is approximately 0–3 µs. PWM1–PWM4: 45 Hz, 25% duty cycle PWM5–PWM8: 45 Hz, 25% duty cycle The 8 outputs need to be synchronized according to the timing sequence shown in the attached diagram. In addition, I receive 4 feedback PWM inputs: Feedback 1–4: 45 Hz, 25% duty cycle These feedback signals need to be measured/captured by the STM32. My main question is:What is the recommended STM32 timer architecture for this requirement?Specifically:How many timer peripherals would I need? Can I use two timers with 4 PWM channels each to generate the 8 PWM outputs? Can a third timer with 4 input-capture channels be used to measure the 4 feedback PWM s

I have loaded the pack for CMSIS and CMSIS-DSP using the Pack Manager in STM32CUBEMX2. However, when generating code in the Project Settings, the CMSIS appears  in the Packs Section and is generated in my project directory but the CMSIS-DSP does not appear in the Packs Section and is not generated. I want to use the DSP features but not able to. Any advice?

I have used the 70STM32H7 template in TouchGFX Designer 4.26.1 to create a project for a Riverdi RVT70 board.I've created a basic start screen, generated code and built it using CubeIDE 2.1.0.The code loads onto the target and runs as expected.If I open the project's .ioc file, I am told that the project uses V1.12.1 of the STM32Cube FW_H7 and V.13.0 is available. Upgrading to this version, saving and regenerating the code results in the project failing to build:In file included from ../../../CM7/USB_HOST/Target/usbh_conf.h:98, from ../../../Middlewares/ST/STM32_USB_Host_Library/Core/Inc/usbh_core.h:27, from ../../../Middlewares/ST/STM32_USB_Host_Library/Class/MSC/Inc/usbh_msc_bot.h:28, from C:/TouchGFXProjects/GFX/Middlewares/ST/STM32_USB_Host_Library/Class/MSC/Src/usbh_msc_bot.c:27: ../../../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os.h:32:10: fatal error: cmsis_os2.h: No such file or directory 32 | #include "cmsis_os2.h"This can be fixed by adding a new i

HiI designed a PCB with an STM32MP157 using a Micron LPDDR3 memory. When I started the layout, I was advised that the memory would be available at least until 2029, so proceeded in good faith. When I came to order prototype samples back in March, I found that there was a Last Time Buy of August 31st this year.The only option that I had was to change the layout to support DDR3L memory, however with the current DRAM supply crisis, I do not have confidence that this generation of device will have sufficient longevity of supply to justify the investment in mass production.My alternative is to jump to an STM32MP2-based board and use DDR4 or LPDDR4 memory which will likely be available for longer but again with the current supply chain situation, these generations could also be obsoleted sooner than anticipated. I already read of DDR5 and LPDDR6 memories coming on stream.Two questions:With regard to the STM32MP1 and STM32MP2 processors, what is ST’s best guidance about which DRAM memory type

I have used some time to figure out to use the ADCs for a couple of Nucleo STM32G4xx boards. In particular I liked to be able to make use of the asynchronous clock. I found out by some trials and errors to get the right RCC settings for that.In RM0440 you got a ADC clock schematic figure 83 page 597. I have tried to enlarge this schematic a bit regarding the RCC controls like this: Can you agree to this schematic?These functions can help configure RCC for the other ADC clock input:__HAL_RCC_ADC12_CLK_ENABLE()         Enables clock to AHB interface__HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL_ADCCLK); Enables clock to PLLPI did not find a function outside the big HAL RCC init data structure to set the bits ABCxxSEL[1:0] of RCC_CCIPR, so I did that bare metal. 

Hi, I am trying to design a custom board with a 1 rank dual die 16Gb LPDDR4, AS4C1G16MD4V-046BIN. I have read the design guide AN5489 and DDR config AN5723. From my understanding there is only one chip select pin for each rank, correct? What do I do? Is there a configuration supported by the STM32MP2x processor with 2 chip select in 1 rank?FYI, I am designing a board based on STM32MP235, so supposedly only 1 rank is usable as per the datasheet.

Somesays ago, I successfully used STM32Cube.AI Studio to deploy a model to an STM32U585CIU6 board and test it.However, yesterday evening I upgraded STM32CubeIDE, STM32CubeProgrammer, and STM32CubeMX. After that, when I tried to run the same process again, I started getting an error.I searched online and found some similar cases. The suggested solution was to update all related software, so I updated the tools accordingly. However, the same error still occurs.I also tried using another laptop. On that laptop, I performed the same software upgrades and then tested with an STM32H743VIT6 board, but the same error occurred there as well.Because of this, I suspect that I may have missed updating some required software or package.Has anyone experienced this issue before or found a solution? I would greatly appreciate any advice or guidance.ps : stedgeai version is v4.0.1.   

I want to create an MX25UM51245G. sldr, but it keeps failing with a prompt Use the official MX25UM51245G_STM32N6570-NUCLEO.stldr to confirm that the board can be downloaded successfully Please check the MX configuration that I generated for MX25UM51245G_STM32N6_ ExtMemLoader. stldr 

 We are using the PowerSTep01 chip to control a stepper motor.https://www.st.com/resource/en/datasheet/powerstep01.pdfRecently we have had issues with the control of motors where the initialization of the PowerStep01 chip failed at startup and the status register read 0x0000 before initialization and 0xE603 after initialization and 0xE613(HiZ=1) when tried to run the motor. After some investigation we figured that sending a reset pulse for 5ms worked (initial Solution A) which had to be increased to 100ms (Solution B)  for a stable outcome.The solution was built by reading through the answers in different forums, with 2 examples links belowhttps://forums.parallax.com/discussion/165132/trouble-driving-the-powerstep01-using-the-x-nucleo-ihm03a1expansion-board https://community.st.com/power-management-53/powerstep01-constantly-tripping-overcurrent-25813 Below is the detailed problem description as well as details of solution A and B. The problem resurfaced after removing intermediatory fi

我在尝试用STM32Cube AI Studio运行一个STM32F407ZGT6项目时遇到了“启动失败运行”错误，我不确定问题的原因。一开始运行正常，但之后错误一直出现。使用“主机”模式时，它正常工作。2026-07-13 10：49：46 错误：以下路径中找不到4.0.0版本的可执行文件：C：/*ST*/*STEdgeAI*/4.0，C：/*ST*/*STEdgeAI*/*2026-07-13 10： 49：47 错误：以下路径中找不到4.0.0版本的可执行文件：C：/*ST*/*STEdgeAI*/4.0，C：/*ST*/*STEdgeAI*/*2026-07-13 11：14：59 错误：从公共IP获取国家时出现错误：获取失败2026-07-13 11：15：00 错误：以下路径中找不到4.0.0版本的可执行文件：C：/*ST*/*STEdgeAI*/4.0，C：/*ST*/*STEdgeAI*/*2026-07-13 11：15：01 错误：以下路径中找不到4.0.0版本的可执行文件：C：/*ST*/*STEdgeAI*/4.0，C：/*ST*/*STEdgeAI*/*

In file included from Middlewares/ST/AI/Misc/Src/ai_device_adaptor.c:19:Middlewares/ST/AI/Misc/Inc/ai_device_adaptor.h:655:8: error: unknown type name 'UART_HandleTypeDef'; did you mean 'DMA_HandleTypeDef'?  655 | extern UART_HandleTypeDef UartHandle;      |        ^~~~~~~~~~~~~~~~~~      |        DMA_HandleTypeDefMiddlewares/ST/AI/Misc/Inc/ai_device_adaptor.h: In function 'port_io_get':Middlewares/ST/AI/Misc/Inc/ai_device_adaptor.h:664:12: error: implicit declaration of function 'HAL_UART_Receive' [-Wimplicit-function-declaration]  664 |   status = HAL_UART_Receive(&UartHandle, (uint8_t *)c, 1, timeout);      |            ^~~~~~~~~~~~~~~~Middlewares/ST/AI/Misc/Inc/ai_device_adaptor.h: In function 'port_io_write':Middlewares/ST/AI/Misc/Inc/ai_device_adaptor.h:676:12: error: implicit declaration of function 'HAL_UART_Transmit' [-Wimplicit-function-declaration]  676 |   status = HAL_UART_Transmit(&UartHandle, buff, count, HAL_MAX_DELAY);      |            ^~~~~~~~~~~~~~~~~make: *

Hi ST Community,I am working with an STM32N657 and would like to use the integrated NPU directly from my own C/C++ application.I understand that X-CUBE-AI together with the Neural-ART can generate the code required to execute a neural-network model on the STM32N6 NPU.However, I would like to understand whether it is possible to use the NPU without X-CUBE-AI.Does STM32CubeIde provide HAL APIs that allow an application to directly initialize, configure, load, and start the STM32N6 NPU?

In debug mode, the variables in the watch window are by default displayed in decimal format. I couldn't find a way to set it to display in hexadecimal format. I am using the jlink debugging configuration.

I bought an stm32f103c8t6 recently, and just wanted to write a simple test C/C++ program for it. It has been 3 days - I have tried multiple combinations of cubemx and cubeide versions and everytime there is the same issue - it just doesn’t let me build the imported project. On this site I found a similiar question on this topic and people said that the problem is caused by system username containing non-english characters. I changed my windows profile name to contain only english characters and the problem persists.I am a bit lostHere is a photo of my project, just generated by MX. inside the project folderAnd here is how it looks after i open it in the IDE I have tried to manually set the nature to C/C++ but it doesnt solve the issue at all. it just make a small “C” appear over only the upper folder.

Hi I am just getting started with STM32CubeIDE for a project I am doing at my university!I have made an account and installed the software, and I got the board (NUCLEO-L552ZE-Q), I wanted to start a new project with the board to try and blink and LED.But somehow I cant find it anywhere where to create a new project that is not an empty project because I want my board automatically connected to my project, because I have read some online where they said a question "Initialize all peripherals with their default Mode?" will appear once you created a new project and want to connect the board.The alternatives I get when pressing Create/Import STM32 Project is:1. STM32CubeIDE Empty Project2. C++ Project3. C project4. STM32 CMake ProjectPlease let me know if I have done something wrong with the installation or if there is something I missed.Thanks in advance!

Hello, I bought a NUCLEO-F446RE Evaluation board last month. But it doesn’t work when I “RUN” or “DEBUG” in STM32CubeIDE2.1.1 environment . To solve this problem, I tried several methods supplied by GPT, I can list more information below:Firstly, my computer is a  lenovo notebook with win11, the STM32CubeIDE version is 2.1.1, and STM32CubeProgrammer version is 2.23.0;Secondly, the device management can list the key information showed below when I connect NUCLEO-F446RE:Thirdly, the STM32CubeProgrammer can easily connect NUCLEO-F446RE, the figure of connecting status and log are showed below: However, after I closed STM32CubeProgrammer and open  STM32CubeIDE, when I click “run” or “debug”, IDE cannot connect NUCLEO-F446RE, the problem figure showed as below: I feel puzzled on this issue, can you give some advice? Thanks.

Hey there,I have made a working implementation of the VL53L9 tof lidar sensor for linux.You can find it here:https://github.com/jonferran/vl53l9cx-pi-lidar Jon

Hello, I am wondering what is the memory interface of the embedded 2MB flash? Like is it SPI .etc Thank you!

 Hello everyone,I am encountering errors when running Semantic Segmentation, Object Detection, and Pose Estimation models on my STM32N6570-DK board using STM32 Model Zoo Services. Here are the details of my setup and the errors I am facing:Hardware and Versions:Board: STM32N6570-DKModels: Semantic Segmentation, Object Detection, Pose EstimationTools: STM32Cube.AI 4.0.0, GCC 14.3.1, HAL 1.3.0, STMCubeIDE 2.1.1I followed the README instructions from the STM32 Model Zoo Services repository to test the mentioned models. I compiled and flashed the firmware onto the STM32N6570-DK board.Errors Encountered: plaintextCopyBus interface interrupt BUSIF0 ERR: 0x0 BUSIF1 ERR: 0x20 Epoch Controller ERROR interrupt: EC_IRQ = 0x0000000a Epoch Controller opcode counter: 0x00000000 Epoch Controller label: 0x00000000 ATON_STD_IRQHandler()@871: irqs=0xlx assertion "0" failed: file "[...]/stm32ai-modelzoo-services/application_code/.../ll_aton_runtime.c", line 875, function: __LL_ATON_RT_IrqErr&nb

I am doing a project on STM32F479ZGT6. I set all my pins to HIGH default, open drain, external pull up on STMCubeMX. During power on, the IO pins first follows 3.3V by the external pull up, but then two of the IO pins becomes LOW during reset release, and then after reset is completely released, it turns back to HIGH(default logic set in STMCubeMX). Does STM32 has the ability to change logic opposite from the default logic only for a moment?(which in my case is during reset release) Would be glad to know any possible cause and solution for this case.Red: ResetBlue &Green: IO pin