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Hi everyone,I am working on an STM32H7A3ZI and I'm trying to to exchange audio data with an SGTL5000 audio codec. Because i want to both send and receive data from the codec i configured the I2S peripheral on the STM32 to Full-Duplex Master mode in Cube MX.My problem:Transmitting data using the HAL I2S functions (HAL_I2S_Transmit, or HAL_I2S_Transmit_DMA) works fine, but when i try to receive data (also using the HAL functions) the bit- and word-select-clock won't start. If i first transmit data and then try to receive everything works fine, because the clocks stay on. If i change the I2S config to Half-Duplex Master Receive mode, just receiving also starts the clocks.So in Full-Duplex Master mode i have to transmit data first (or at least write some data into the transmit data register, which starts the clocks), before i can receive data.My question:This seems to be intended behavior, but i couldn't find any documentation on it. Why is this implemented like that?

Sorry, I'm very new to microcontrollers in general and was wondering if I would need more SRAM or if I could successfully just write to the display driver's memory and not worry about a big frame buffer. I hope to use LVGL to control a 320x240 16 bit colour depth display using this method, any help on this topic would be greatly appreciated, thank you.For reference, the reason I'm interested in doing this is because I'm using the STM32 F4VE Black board and I can see it has a TFT interface.

Hello everyone,I tried to create an STM project using existing .ioc files from my friend. They suggested choosing the Migrate option, but unfortunately, it didn’t work for me. For context:I’m using Windows.The same migration process works perfectly on Mac.When I open the main code, I only see the basic template code that appears when starting a new project—all the code from my friend has disappeared.I’ve already tried reinstalling the STM software, but that didn’t help either.Has anyone encountered this issue or can suggest a workaround?Thanks in advance for your help! 

Hi,I am trying to get the USBX CDC working on a NUCLEO-U083RC, but with no luck.I have tested that the USB port (PA11 and PA12) works, because I can do firmware upgrade using the STM32CubeProgrammer.But I cannot find any example on how to get the USB CDC (Virtual Comport) working.I have spend most of a day trying different examples, but nothing seems to work for me.Do anyone have any help to offer regarding a working example ? Best RegardsJakob

Hello everyone,I'm working on an application using a motor with a nominal speed of 1850 rpm and a nominal current of 4.1 A. The motor operates within a speed range of 300 to 800 rpm, and I'm looking to implement stable and efficient speed regulation.I have already imported my project into MC Workbench and configured the following parameters: Current configuration:Speed sensing mode:Speed Sensor Mode: Hall SensorSpeed regulator:Execution Rate: 1 msTarget Speed: 648 rpmAuto Calculate Kp & Ki: enabledKp ≈ 14.96Ki ≈ 0.0105Maximum speed error before fault: 3Current regulators (Torque/Flux):Execution Time: 50 µsControl Mode: Speed controlCut-off frequency: 6000 rad/sAuto Calculate Torque/Flux Kp & Ki: enabledIq (Torque) Regulator:Target: from speed regulatorKp ≈ 7.62Ki ≈ 0.326Id (Flux) Regulator:Target: 0 AKp ≈ 7.62Ki ≈ 0.326Modulation:Selected modulation: NonePWM and current sensing:PWM frequency: 20 kHzCurrent sensing gain: 21Measurement rang

Dear,Is it possible for execution within HDPL_x to use SAES (Secure AES) with a DHUK (Derived Hardware Unique Key) from HDPL_y where x > y?For example:Execution within HDPL2 makes use of SAES to encrypt plaintext p using its DHUK, this results in ciphertext cAfterwards, upon reset, execution within HDPL1 needs to be able to read plaintext p (e.g., by decrypting the stored ciphertext c using HDPL2's DHUK) without changing the HDPL.Is this possible with SAES, and if yes, how?Thanks a lot!

We sincerely appreciate your continued support. We have been able to resolve many questions.In the CTRL1_XL register of the ASM330LHH, when setting ODR_XL[3:0] from 0000 (OFF) to 0011 (52Hz) and then to 1001 (3333Hz), does ODR_XL[3:0] need to be set back to 0000 (OFF) once ?

where do I get API documentation for firmware OTA of STM32WBA52CGUX ?

I am working on a project where I am required to deploy a Neural network on STM32 Nucleo- H755ZIQ. And I feel stuck because I am unable to properly run it on the board using Stm32CubeIDE with X cube ai. I downloaded the .ioc file and the project files from ST Edge AI Developer Cloud but I could'nt figure out how to properly flash it on the board and verify it. I also cant seem to figure out the clock configuration, usart, and I dont know how to access a serial monitor on mac. I have .csv files to test the model on the board, but I cant figure out where to insert the file for testing. I tried using Simulink hoping it'll be easier but the stm32 hardware support package is not supported on MacOS(M1). Can anyone help me out figuring out the pipeline to deploy this model? I am fairly new to stm32 MCUs and have limited experience in embedded.It is a Keras model which takes in ECG data in string arrays and classifies it. Right now I am only feeding the model with .csv file

I created an H745ZIT6 CubeMX project and then tried to import it in VSCode. But when I try to import it, it expects me to import each core individually. How am I supposed to do it? When I try to set the project path for each of them, the only option I get is the parent folder.

Hi all! AGENDA: Need to verify the external QSPI flash (AT25Q128A) all sectors Write, Read and Comparing with STM32L496ZG-P using driver code. APPROACH: For write, I am have created a buffer which comprises of page size of 256, and I am using two "for" loops one outer "for" loop for incrementing total sectors i.e. 4096 times and inner "for' loop as there are 16 pages for a single sector I am incrementing it to 16 times.  In below case I am trying to write letter O to all sectors and read and compare,  // Fill buffer with character 'O' for (int i = 0; i < PAGE_SIZE; i++) { page_buffer[i] = 'O'; } for (uint32_t sector = 0; sector < TOTAL_SECTORS; sector++) { uint32_t base_address = sector * SECTOR_SIZE; for (uint32_t page = 0; page < PAGES_PER_SECTOR; page++) { uint32_t page_address = base_address + (page * PAGE_SIZE); //// Write to flash if (CSP_QSPI_WriteMemory((uint8_t*)page_buffer, page_address, PAGE_SIZE) != HAL_OK) { // flash_write_success = false; //

Hello, I installed X-CUBE-AI 10.2.0 from STM32CubeMX in STM32CubeIDE 1.18.1. After enabling X-CUBE-AI in the ioc file and performing code generation, the folders /Middlewares/ST/X-CUBE-AI/Inc and /Middlewares/ST/X-CUBE-AI/Lib are created, but no code is generated in those folders. Therefore, when building the project, I get an error such as:fatal error: ai_platform.h: No such file or directoryIn Project Manager → Code Generator → Generated files panel, I unchecked the option “Delete the previously generated files when not regenerated” and regenerated the code, but the problem was not solved. Please help me.If there is any necessary information that I have not provided, please let me know.This message was translated into English using generative AI. I apologize for any awkward sentences or expressions.Thank you.

Hello - I'm quite new to the world of ML and machine learning on embedded and I'm having trouble implementing a model I've trained on the board. It is a hand gesture recognition model and the point was for me to understand the whole ML development process by training and deploying a model from scratch. I have been referencing this article: How to build an AI application from scratch on the... - STMicroelectronics Community and have followed all the steps. I tried once using a model from the model zoo and it worked fine but when trying with my own model it hits a hardfault and halts execution - so I'm guessing it is an issue with my model. I've attached a zip file of my project and a zip of the notebook file and exported model (i actually ended up uploading the keras model to ai developer cloud and quantising/optimising the model in there, so ignore this part in the notebook).Another issue I've been having lately is regeneration of code with cube mx - I generate code for the f

  Hello, I designed a board based on the STM32L031F6P6 with an sx1262 chip, and it worked well using the driver https://github.com/Lora-net/sx126x_driver for LoRa transmission. I'm trying to send LoRaWAN signals, but I'm having trouble finding examples of LoRaWAN transmission with sx1262 for STM32 platforms. Does anyone have any tips?

RAM Overflow and X-CUBE-AI Quantization Analysis Error with PyTorch Model on STM32F401REHello everyone,I'm working on deploying a PyTorch model to an STM32F401RE NUCLEO board and encountering some challenging memory and quantization issues that I hope the community can help me resolve.Project ContextMy project involves running a custom PyTorch model (converted to ONNX format) on the STM32F401RE NUCLEO board. The system already has USB Host (Audio Class) library and FreeRTOS integrated as essential components for my application, which means I need to work within the remaining available memory space.Development EnvironmentBoard: STM32F401RE NUCLEO (96KB SRAM)IDE: STM32CubeIDE 1.18.1X-CUBE-AI: 10.2.0Additional Libraries: USB Host (Audio Class), FreeRTOSModel: PyTorch → ONNX convertedProblem 1: RAM Overflow During BuildWhen I configure X-CUBE-AI with compression set to high and optimization set to ram, the build process fails with a linker error:C:/ST/STM32CubeIDE_1.18.1/STM32CubeIDE/plugi

Hi. I just ordered a brand new NUCLEO-N657X0-Q, and cant connect to it using STM32CubeProgrammmer. I tried using ST-Link in different modes and reset modes. I also tried using external loader, and discovery under debug authentication, got the error message in the screenshot.Would appreciate some help.

Hello, I'm very new to BLE. I'm following STM example code.I want to be able to run on battery and turn on the BLE to advertise for 5 minutes then stop. After an interrupt, I want to be able to turn on advertising again.In the STM32WBA Bluetooth® LE – Serial communication - stm32mcu Example, i found in main while loop, there is  MX_APPE_Process(); which initiates BLE. I want to implement something like:switch (...) {    case 0: // walking            MX_APPE_Process();    case 1: // stationary            // Turn off advertising}How should I do. Please support me.            

HelloWe are using the STM32MP257F in M33TDCID flavour using the packagestm32mp2-m33td-openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11We can boot and run the Non Secure application, but when we try to use some of the peripherals (I2C, SPI, GPIO)we see processor exceptions or Resource Manager issues.How do we configure the device to allow the Non-Secure application access to all the peripherals Thanks  

I'm currently working with an IMX219 camera sensor connected to the STM32MP257-EV1 board. The camera is successfully streaming, and the pipeline appears correctly configured through media-ctl. However, I’m unable to use the dcmipp-isp-ctrl tool at runtime for ISP control.System Info:Board: STM32MP257-EV1Sensor: IMX219ISP Tool: /usr/local/demo/bin/dcmipp-isp-ctrlKernel & Yocto BSP: scarthgapMedia-ctl Output:Camera is streaming properly; format and pipeline are configured as expected.root@stm32mp25-eval-e3-e7-ad:~#  media-ctl -d /dev/media2 -pMedia controller API version 6.6.78 Media device information------------------------driver          dcmippmodel           DCMIPP MDEVserial          bus info        platform:48030000.dcmipphw revision     0x30driver version  6.6.78 Device topology- entity 1: dcmipp_input (4 pads, 5 links, 0 routes)  &nb

Hello Everybody,MCSDK : 6.3.2CubeMX: 6.3.2Workbench : 6.3.2Cube IDE : 1.18.1Hardware : Custom but based on EVLDRIVE101-HPDMotor : PMSM 28V - 2 pole pairs - Rmp = 14K - rated current = 13A - Primary sensor : Hall, Secondary sensor Observer+PLL (sensor less)At power up, after a delay, the motor start with hall sensor.When motor control switch to RUN, there is current surge, limited by my power supply (15A), during 100ms. (PWM > 90%).Is it to align the rotor ???If i use FOC as primary sensor, you can limit the current but not if i use Hall sensor as primary sensor.I have change IQMAX_A, NOMINAL_CURRENT_A and ID_DEMAG_A at different value, but i has no effect.What can un do to limit this current to 3/4A during this phase ?After this surge, the motor works well.(Green : rpm, Yellow : power supply voltage, Blue : Power supply current, Purple : W current)

I have a problem I can't solve.In a previous project, I used an STM32L4A6 and set the PC8 and PC9 lines high before entering the system bootloader. After starting the system bootloader, these lines remained high. They were used to maintain power to the device.In the new project, the MCU was changed to an STM32F446. I used the PD10 and PD12 lines to maintain power after confirming with the AN2606 that they were not being used by the system bootloader. Unfortunately, after starting the bootloader, both lines are reset.Why does this happen?

Apologies if this is the wrong group for this query. I have implemented a library from scratch which performs the host side of a DFU upgrade (avoids the dependencies in CubeProgrammer_API.dll, for which I could not find source). The code works just fine but I have a question about the expected values of bAlternateSetting across the whole range of STM32 devices.For the STM32U575, there are three DFU Interface Descriptors with bAlternateSetting values of 0, 1 and 2. These correspond to 0=Internal Flash, 1=Option Bytes, 2=OTP Memory. [This is very clear from the memory descriptor string corresponding to the iInterface value of each interface.]My question is: are these values consistent across the range of STM32s, or might some devices have (say) 1=Internal Flash or whatever?Is there any available documentation for this? I've spent quite a bit of time trawling various UMxxxx and ANxxxx as part of creating this library, but have not found much about bAlternateSetting.The behaviour of D

Hi,The bootfs firmware compiled from the Yocto environment I am using is a symbolic link. Every time the STM32CubeProgrammer software downloads this firmware, it exits directly.I am certain that the firmware itself is fine. If I directly modify the bootfs firmware to the file pointed to by the symlink, it can be downloaded.I don't know if the behavior of generating symlinks is controlled by ST or Yocto.How can I avoid this problem? Environment info:  Ubuntu 24.04.2 LTS on WSL2:  Yocto, branch: scarthgap, commit 792d18b4cb2451b00280641403e6eaf37bd6e53f  meta-st-stm32mp, tag: openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11  meta-st-openstlinux, tag: openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11  Windows 11:  STM32CubeProgrammer v2.20.0 ThanksDunliang

The Raspberry Pi Pico 2W is a dual-core Cortex-M33 processor. It has 16 DMA channels per bus. While I'm not sure if the exact number represents all DMA channels, there's only one path each for the master and slave. Therefore, if three modules occupy the DMA, there's a delay of nearly a second when switching processes using FIFO messaging.The B-U585I-IOT02A, an STM32 development board, has a single Cortex-M33 core. According to sources, even with a single core, the bus is multi-layered for DMA, so there should be no delay. This is called a bus matrix, and the attached datasheet shows multiple arrows in the diagram, arranged like a matrix. If this is a valid interpretation, I wonder if it would work well when switching from TCP communication to I2S, or from I2S playback to TCP communication.The Raspberry Pi Pico 2W is dual-core, so I don't need to implement multithreading. I2S, FatFS, and TCP communication are all allocated to each core, so it works fine without threading. To eliminate t

Hello everyone,I’m facing an issue with an STM32L4-based design where the USB FS Device stack (CDC) sporadically fails to start correctly. Maybe someone has seen similar behavior or can point me to potential root causes. System overview / setupMCU: STM32L4 (CubeMX / HAL / FreeRTOS)Clocking:MSI as system clock (16 MHz)USB via PLLSAI1 (48 MHz)USB: FS Device Stack (CDC), initialized after HAL_Init() / SystemClock_Config() in the first TaskESD protection: USBLC6-2SC6Lines: no series resistors on D+ / D-Firmware Package Name and Version: STM32Cube FW_L4 V1.15.0Hardware layout: Clock configuration: USB Stack configuration:  Observed behaviorOn several boards, the USB stack does not reliably start after power-up.In that case, the firmware blocks → Watchdog reset after ~8 s → endless reset loop.Disconnecting/reconnecting the supply sometimes fixes the issue, and the USB connection to the PC works normally.Interesting: When probing D+ or D- with an oscilloscope, th