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 I am using STM32N6570-DK board . I am trying to build edge AI code in application mode with the help of generated STM32 cube AI studio generate project for IDE. I am following this article https://community.st.com/t5/stm32-mcus/how-to-build-an-ai-application-from-scratch-on-the-stm32n6570-dk/ta-p/825591 . @Julian E. This article includes AI using X-Cube AI , I just wanted to ask if I am using the project/ AI files generated by STM32 Cube AI studio, Will the configuration of external memory manager and addresses we are using in XSPI2 , RAMCFG , RCC settings all will remain exactly same ? I am asking this as I am getting some memory issues while debugging the application code.Also my code includes ADC+USART also, will this add to additional memory changes?

Hi,After reading HSO current and voltage sampling in three-shunt topology, I beleve it is possible to run two BLDC moters using the ST-G473 microprocessor using 2 ADC's per motor. However, there does not seem to be support for that in the MC Workbanch. Will this be available in the future?Regards, Kevin

hello ST Community, I need your support. So far, I've been able to flash my bootloader software into the unprotected memory area 0x08000000 when Boot0 = 0 for the NUCLEO-H755ZI-Q series, both with the STM32CubeProgrammer and with my bootloader software via UART. However, I'd like to flash the same bootloader software into the memory area 0x1ff00000 when Boot0 = 1. I know it's protected. Is it possible to change the security level or flash it to another memory to run my software when Boot0 = 1? Thank you for your support.

@Ulysses HERNIOSUS Dear Ulysses,Sorry to bother you again. code : err = rfalTransceiveBlockingTxRx(tx_buf, sizeof(tx_buf), rx_buf, sizeof(rx_buf), &actlen, RFAL_TXRX_FLAGS_CRC_TX_MANUAL|RFAL_TXRX_FLAGS_PAR_TX_NONE|RFAL_TXRX_FLAGS_CRC_RX_KEEP|RFAL_TXRX_FLAGS_PAR_RX_REMV|RFAL_TXRX_FLAGS_CRC_RX_MANUAL, 71680U); I want to send 4 bytes data and 4 bits parity, how do i combine those 36 bits data to 5 bytes data and send with function rfalTransceiveBlockingTxRx. for example:data_enc: 03, de, 59, bdparity_enc: 00, 00, 00, 00tx_buf: 03, bc, 65, e9, 05is it correct? can rfalTransceiveBlockingTxRx send 4bit data? Thanks

  I have tried using STM32CubeMX 6.17.0 to generate an STM32F429 DISC1 project.The generated project opened in STM32CubeIDE could not be compiled unless I add <root folder> in Project -> Properties -> C/C++ General -> Path and Symbols, the source location tab.I don't know how this happen. It's disturbing to modify project settings each time after modifying the CubeMX and generating the project.It's probably that should happened after I add some source folders to the projects. 

Is it possible to connect 8 PDM microphones to the STM32N6 via MDF?

Is Cosmic license delivery service still working ?I submit the request, but I didn't get any answer! 

Hello, I have a STM32 NUCLEO-N657X0-Q development board. I wanted to interface with 8 digital PDM MEMs microphones.  In section 68.2 of the STM32N6 reference manual, it states that the N6 supports a "PDM interface, supporting up to 4 microphone pairs". Also in section 2.2.3 of AN5027, it states that if 8 microphone want to be used, the recommended data IO lines are SAI_D1, SAI_D2, SAI_D3, and SAI_D4. Using CubeMX, I see no option for microphone pair 7-8. In addition to this, SAI_D4 doesn't exist when I search for the pin.  So how do I interface (if possible), the last microphone pair?  Thanks, Christopher

Hi everyone, I am currently developing an image capture project using the STM32N657 (Cortex-M55) and have encountered an extremely bizarre DMA2D write issue (a silent failure). Goal: Use DMA2D (M2M_PFC) to convert an RGB565 buffer to RGB888 and write it to CPUAXI_RAM1 (0x34080000). [Problem Description] I wrote a "minimal isolation test" to bypass all camera/GPDMA variables. I forced the CPU to fill the source buffer with pure white (0xFFFFFFFF), and then manually triggered the DMA2D to transfer it to the destination buffer. The Result: The DMA2D finishes successfully. The DMA2D->ISR register reads 0x00000002 (the TCIF Transfer Complete Interrupt Flag is set, and there are NO Transfer Errors). However, the destination buffer remains completely filled with 0x00000000. [Troubleshooting Done] To isolate the issue, I have verified the following, but the problem persists: CPU Read/Write Test (Pass): Before triggering the DMA2D, I forced the CPU to write 0xDEADBEEF to the destinatio

I get this error when I press the 'Kudos' button: https://community.st.com/t5/stm32-mcus-products/stm32g411-availability/m-p/885372/highlight/true#M293512 Also happens on other posts in that thread, and in other threads. Looks like a recurrence of Kudos button gives error (12 Dec 2025)

Hello, I am working with the following setup: Board: B-L4S5I-IOT-01A MCU: STM32L4S5VIT6 BLE Module: BlueNRG-M0+ (in built in the Kit) I am currently facing an issue related to the BLE MTU (Maximum Transmission Unit) size. By default, the payload length is limited to 20 bytes, which is insufficient for my application, as my data length exceeds 180 bytes. I would like to know: Is there a way to increase the MTU size on the BlueNRG-M0+? Can this be achieved without modifying my existing data transmission mechanism (i.e., without manually fragmenting the data into smaller packets)? My goal is to transmit larger data packets in a single operation, if supported. Any guidance or recommended approach would be highly appreciated. Thank you.

Title edited to clarify this is about CMSIS-RTOSHello, everybody!I don't know where to look for information on which CMSIS versions are supported by specific STM32 microcontrollers. I asked one of the ST employees and STM32 Sidekick about this, and I got no definitive answers.STM software tools confuse me further. For example, STM32CubeMX (6.17.0) allows me to choose CMSISv2 the interface for FreeRTOS in my STM32F769I‑DISCO board project, but LwIP in the same project does not see the operating system used unless I change the CMSIS version to v1 (you can find more details about this specific issue in this thread). I couldn't find any document that would say which interfaces are supported by LwIP either.That's why I would like to ask You, where should I look for information about which CMSIS versions are supported by specific STM MCUs and, ideally, middlewares and software packages?

Hello Team, We are using STM32N657X0H3Q for one of our application, while looking for the voltage level information for pins, we did not get any information for PA0 pin for the controller, specifically i am referring the notes column in pin description section. I hope you are getting my question.  RegardsHarsh Bhavsar 

Hey. I have recently received STEVAL-MKI109D + STEVAL-MKI238A for evaluating LIS2DUX12 accelerometer.I have opened MEMS Studio, chose my evaluation board and performed FW upgrade as prompted by the MEMS Studio.  I have then proceeded to Sensor Evaluation -> Save to File to capture my own data for further processing. Each sample was taken using 5 seconds timeout. So I just click "Start" and proceed with moving the board for 5 seconds. I did the following:1. Capture 3 "flip_down" samples of me flipping down the evaluation board.2. Capture 4 "flip_up" samples of me flipping up the evaluation board.3. Capture 4 "shaking" samples of me shaking the evaluation board.4. Capture 3 "stationary" samples where the device was just sitting on the table. After collecting all samples in .csv format, I have then proceeded to Advanced Features -> MLC and uploaded all collected .CSV data using different class names. See the below:  I noticed that STATIONARY and SHAKING samp

So apparently in 2026, creating a basic embedded C project now requires… a login.Tried spinning up a project in STM32CubeIDE and got a nice “half-built” result:Project created ✔Code generation :cross_mark:Explanation :cross_mark:Turns out the IDE now needs to quietly download the HAL/CMSIS packages, which in turn requires a myST account login… but:It doesn’t tell you thatIt doesn’t prompt you (on Linux at least)It just silently fails and leaves you debugging yourselfSo you end up thinking:“Did I misconfigure the clock? The linker script? The .ioc?”Nope. You just weren’t logged into a website.Nothing says robust embedded tooling like a hidden cloud dependency for generating main.c.Bonus points for the UX where the “login” option is buried under:Help → STM32Cube Updates → Connection to mySTBecause obviously that’s the first place you look when your GPIO project won’t build.Anyway—manual firmware download and local install fixes it. Once you discover the secret handshake.Progress :thumbs_

Hi @Ghofrane GSOURI. I just noticed new STM32CubeMX2. It's for STM32C series currently but I downloaded it to check it out. It looks very nice, that's for sure. Yet this topic is about file format. MX2 re-uses .ioc file extension but it's format is strange. It is made of JSON/Python?? multiline strings containing JSON and YAML. I don't understand what format is it exactly. The data inside it is also hard to understand and there is a lot of clutter, like IDs, URIs, URLs, descriptions, etc. Why on earth would somebody put field description text beside field name and value?If I may express may opinion - this is awful. It's even worse than old format. It won't be easy to merge changes in such file. It looks like it's a mash-up of multiple tools/libraries serialized states. CubeMX developers are going to have backward and forward compatibility problems and end users are going to suffer if bugs emerge.I would like to suggest one more file format: TOMLEdit: Moved from New IOC file f

Are the pin configurations for TSV321RAILT and TSV321RILT exactly the same?I'm having trouble finding this information in the datasheet.

We have successfully tested the  ST67W6X Network Driver CLI example on a NUCLEO-U575ZI-Q with X-NUCLEO-67W61M1 development boards.We would like to port the example to an STM32F746.However, this is not simple due to the tight timing constraints required by the ST67W6x - e.g. the examples utilise the advanced SPI DMA available in the STM32U5xx family.Searching the internet shows other developers noticing dropped data on other processors. There are also reports that the following requirements must be met:Respond within ~30us of SPI_RDY going highNo breaks of more than ~2-3us in the DMA while streaming the SPI data.Do you have an example port for the STM32F746? Or at least on a processor with similar limited DMA capabilities? 

I am working with the STM32N6-GettingStarted-ObjectDetection demo.  I found that doing a full chip erase wipes some bootloader code.  I was able to get my project going again by flashing the .hex file that came with the STM32N6-GettingStarted-ObjectDetection demo, the loading my code. Digging around on the net suggested that the prebuilt demo has a bootloader.  I have been unable to locate the bootloader.Can you provide me with the bootloader, preferably as a .hex file?

I have connected X-STM32MP-GNSS1 with my STM32MP157F-DK2 board. I have connected it directly to serial COM port on windows to use Teseo-suit. I updated the firmware for TESEO-LIV3FL to STA8090_4_6_15_1_CP_LIV3FL_UPG48 by using Teseo-suit. I still can not see my correct position on map. Can anybody please help? 

Hi ST Community,I am working on a project using the SensorTile.box Pro. My goal is to implement a highly accurate step counter using the LSM6DSV16X's embedded pedometer.What I have done:I recorded data patterns at 30Hz and successfully ran the Pedometer Regression Tool in MEMS Studio.The tool generated the optimum configuration files (pedometer.json ).I converted these register settings into a .ucf file format.The Problem: I need to apply these "Golden Settings" to the sensor initialization in AlgoBuilder so they persist after a reset. However, I am unable to find a standard method to load this configuration:I checked the Sensor Hub block properties, but I do not see a "Load Configuration/UCF" option.I searched the Library for a "Register Write" block to manually input the values, but this block seems missing or hidden in my version of AlgoBuilder (I only see Acceleration, FSM/MLC, Sensor Hub, etc. under the Sensor Hub folder).My Question: What is the correct way to inject a custom reg

Hi, I am using STM32U385CGU6 with 1.8V supply. My GSM peripheral using the 3.3V Uart port for a dedicated time (2sec) then turn back to 1.8V level of UART.  Could you offer 3.3V tolerant pin? I am using PA8 to communicate with GSM module. thank you & best regards, feramuz karşil 

Heyho,using L073 at 32MHz, so even I2C transfers "seem" fast, at least in "fast mode plus" at SCL 1 MHz. And I don't want to over-use clock stretching.I'm looking for a way to use I2C slave receive with DMA, but an unknown transfer length.Right now it looks to me as if I could do the following:I2C & DMA prep: all stuff & addresses set, DMA in I2C enabledon I2C ADDR match interrupt:set DMA CNDTR to max buffer lengthenable DMA on I2C STOP match interrupt:disable DMAAny problems with that?Have only 1 device for now...Thanks!

I've built at least a dozen boards using the same communication interface -- a custom debug monitor for communication through stlink -- all on stm32l42x processors. The debug monitor looks roughly like the following code. Although the macros are for ChibiOS, their purpose should be clear.Basically, the host software, after attaching to the debug interface, communicates by passing small commands through DCRDR and getting 32 bit results (which may be memory addresses) in DCRDR.  The DEMCR is used for triggering the monitor interrupt and the MON_REQ bit is used as a semaphore.  This has worked great until now.  I received prototypes of a new design.  Reading/writing of DCRDR works fine, but writes to DEMCR have no effect.  I can debug the code on the board with gdb, and I can write test code that triggers the monitor interface running on the board and even stop in the monitor with a breakpoint, but I don't seem to be able to write a value to DEMCR through stl

Dear All, Could you please share us a technical document to show us what was the exat meaning of "N" letter of your part BAT54CNFILM-H/J ? Actually we ordered 6K pcs of your part BAT54CFILM from Digikey and its Digikey part number is 497-3786-2-ND but received this part as its part number was written as BAT54CNFILM-H/J on the manufacturer label of this part and our customer needs to learn what is the meaning of "N" letter on this part number. So please provide us a document to explain this "N" letter as this informations is not available neither in digikey nor in its datasheet