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Does ST maintain any automated tests for ST development boards and Zephyr?  If so, where may I find more details about the hardware used and test coverage?

This release introduces the latest version of RTEdbg, a high-performance toolkit engineered for real-time embedded system analysis and debugging. The latest update streamlines event visualization via VCD viewers and introduces FreeRTOS trace integration, alongside several core enhancements.Unlike traditional logging and tracing solutions (such as Tracealyzer or SystemView), RTEdbg provides deep runtime insights with a minimal footprint. Its logging functions are significantly faster than commercial alternatives and consume substantially less stack space, making it the ideal choice for both resource-constrained devices and complex, large-scale RTOS-based systems.Relying solely on classical debuggers often feels like "flying blind" when managing intricate timing and RTOS scheduling. RTEdbg bridges this gap by providing:VCD-based visualization for synchronized event and data tracking.RTOS trace support for better scheduling visibility.Enhanced trace macros allowing you to log any data typ

I have been looking at the CRA Q&A and was wondering what you you are meaning with the reporting of security incidents 2026-12-11. Do you mean the reporting according to article 14 that enters into force 2026-09-11?

Not sure that I have the latest version of the HAL but I used two ip address for the ETH MAC and tried to enable both in the L3 filter.But I could not get any data to the second interface. with the filter turned on-Looking more closely on the HAL_ETHEx_SetL3FilterConfig I found what can only be a copy paste mistake.Writing the destination address for IPv4 was mede to the MACL3A0R1R register instead of the expected: MACL3A1R1RMight be fixed in newer version but using two IP-address perhaps is a bit unusual.  

Hello, I need to have D-Cache enabled to improve performance of FMC external SDRAM (it's >3x slower without D-Cache enabled). I also want to use I2S for audio. But with D-Cache enabled, I don't get any data from ADC. What can I do to use I2S with D-Cache enabled?

Hi.  I have a newly purchased NUCLEO-U575ZI-Q.  I followed the instructions here to install the toolchain on Windows 11:https://www.st.com/en/evaluation-tools/nucleo-u575zi-q.html#documentationhttps://wiki.st.com/stm32mcu/wiki/STM32StepByStep:Step1_Tools_installationAfter one unsuccessful attempt where I chose my own installation folders, I uninstalled everything and took the defaults.What a mess!  The default installation folders are spread between AppData, Program Files, and C:\ST.  But OK, if that's what it takes.Unfortunately, I got to step 5 and found that the instructions diverge from reality.They never said to click Finish to complete the Import Projects dialog.  And there is no way to select the project they mention from it.  But if I click Finish, then a tiny icon appears on the upper left.  If I click it, then there is a Project Explorer window.The next step is:My IDE has no Debug icon (the the little yellow blob on its lower left).  Bu

Continuation of this thread. Hello,  I've wired SDRAM (AS4C4M16SA-5TCN)  with STM32H730ZBT. Connection works, I can read/write data, but every other byte.  Let's start with array declaration: uint8_t *externalRAM = (uint8_t*)0xC0000000; /* USER CODE END PV */ Then I'm trying to write some bytes to this array, ie: externalRAM[0] = 0xAA; externalRAM[1] = 0xAA; externalRAM[2] = 0xAA; externalRAM[3] = 0xAA;   And to read it: uint8_t test[4]; test[0] = externalRAM[0]; test[1] = externalRAM[1]; test[2] = externalRAM[2]; test[3] = externalRAM[3]; And this is the result: Sometimes test[1] has 0xAA too, but mostly it's 0. I've tried to lower FMC frequency or change memory timings. What does this look like?

Hello,I am experimenting with X-Cube-AI (v10.2.0) in STM32CubeMX(v6.16.1). I noted that the version of the ST Edge AI Core in this case is v2.2.0. Moreover, this makes that the Embedded Interface is the legacy one, instead of the the newest ST-AI. I wonder if there are plans to update X-Cube-AI so it uses the latest version of ST Edge AI (v3.0.0), and uses the latest the ST-AI interface.Thanks.

Dear ST Community,We are working with the STM32MP257F-EV1 evaluation board and using the Yocto Distribution Package for our software stack.Our intended boot sequence is:Boot starts from the Cortex-M33 core.The M33 firmware is responsible for triggering the boot of the Cortex-A35 core.We would like to confirm:Is this boot flow supported on the STM32MP25x platform?If yes, could you please share the recommended procedure or reference steps to implement this?Any guidance or official documentation links would be greatly appreciated.Thanks and Regards,Ishan

Hello, I have a query about how HAL_UART_Receive_DMA and HAL_UARTEx_ReceiveToIdle_DMA work?For my application there is a varying payload size, so I am wondering how would I trigger the HAL_UART_Receive_DMA(&huart3, rx_buffer, 4096, 0xFFFF); interupt? As from my understanding it would be waiting for all 4096 bytes of data which won't arrive unless a different frame was sent.Whereas  HAL_UARTEx_ReceiveToIdle_DMA(&huart3, rx_buffer, 4096); triggers once the serial port stops communicating, however it stores the received data in 512 byte chunks, which has proven difficult to access when generating a LUT from the rx_buffer.If anyone can shed some insight over how these interrupts work? And how to make them applicable for a variable payload would be great.

I have implemented a USB Audio 2.0 device that receives audio from the PC host (speaker endpoint) and loops it back (microphone endpoint). The PC correctly recognizes the device, and audio playback works, but I'm experiencing unexpected low-frequency noise.Specific symptom: When playing a pure 350Hz sine wave from the PC, the device receives not only the sine wave but also significant noise content from 0Hz to 350Hz. This noise is audible in the loopback audio sent back to the host.The audio data flows through a simple memory copy without any DSP processing:ux_utility_memory_copy(write_buffer, read_buffer, copy_len); ux_device_class_audio_write_frame_commit(g_mic_stream, copy_len);I also perform FFT analysis for visualization (TouchGFX), and the spectrum confirms the low-frequency noise is present in the received audio data itself, not introduced by my processing.I have tried to disable the microphone endpoint and keep just the speaker endpoint but the issue persists.Any guidance on di

I am using NUCLEO-U083RC with X-NUCLEO-IKS4A1. I read the data from LIS2DUXS12 which is on X-NUCLEO-IKS4A1. The accelerometer data is in 8 registers. OUT_X_L, OUT_X_H, OUT_Y_L, OUT_Y_H, OUT_Z_L, OUT_Z_H.I am trying to understand the instructions in the document AN5909 page 23. The example shows:Get the raw data from the sensor:OUT_X_L: 61hOUT_X_H: FDhOUT_Y_L: 73hOUT_Y_H: 00hOUT_Z_L: F0hOUT_Z_H: 42hDo the register concatenation (useful data on 14 bits, last 2 bits must be ignored):(OUT_X_H << 8) + (OUT_X_L & 11111100b) = FD60h [-672 in two’s complement](OUT_Y_H << 8) + (OUT_Y_L & 11111100b) = 0070h [+112 in two’s complement](OUT_Z_H << 8) + (OUT_Z_L & 11111100b) = 42F0h [+17136 in two’s complement]Apply the sensitivity and obtain the value in mg (0.061 mg/LSB at full scale ±2 g):X: -672 * 0.061 = -41 mgY: +112 * 0.061 = +7 mgZ: +17136 * 0.061 = +1045 mgI have the following question: why is the two's compliment for FD60h ca

what am i doing wrong?

Hi Team,We I have shortlisted the STM32U535RET6QTR microcontroller for our microwave oven control panel. The MCU includes an integrated Touch Sensing Controller (TSC), and our design requires 8 capacitive touch keys.Before finalizing the component selection, we require clarification on the following points to ensure compliance with home‑appliance safety and EMC standards:1.Is the STM32U535RET6QTR suitable for microwave‑oven capacitive‑touch applications?2.Does ST provide any dedicated capacitive‑touch sensing IC, apart from the built‑in TSC in STM32 MCUs?3.What are the advantages of using STM32U535RET6QTR (with integrated TSC) compared to a dedicated touch‑sensing chip?4.If we use the integrated TSC in STM32U535RET6QTR, what hardware challenges may occur?5.What software‑related challenges can arise with the integrated TSC?6.Can STM32U535RET6QTR meet home‑appliance certification requirements such asIEC 60335‑1 / IEC 60730‑1 Class‑B?7.For an 8‑key capacitive touch panel, what does ST rec

Hi.I want to use NUCLEO-WL55JC with 32MHz crystal, not TCXO. So i do following steps according to UM2592(User manual of STM32WL Nucleo-64 board)No C30 and no C38 as those capacitors are integrated into the STM32WL MCU.SB20 OFF in order not to supply the TCXOC31 OFF in order not to have a 32 MHz signal coming from the TCXOR39 and R40 ON to connect the X3 crystal to the STM32WL MCU I use LoraWAN_end_node project in STM32Cube_FW_WL_V1.4.0.So i do following steps in configuration in CubeMX (also attach clock configuration)Select HSE as Crsytal/Ceramic Resonator instead of TCXOIn stm32wlxx_nucleo_radio.c, BSP_RADIO_IsTCXO function returns RADIO_CONF_TCXO_NOT_SUPPORTED instead of RADIO_CONF_TCXO_SUPPORTED. But after that, NUCLEO board give me message MAC txTimeOut instead of success tx process. While i use TCXO, there is no problem to send tx and also connect to LoraWAN. What can i do to use standard crsytal instead of TCXO? Be

Hello,I am testing a demo of my TSD TSS012004A-AD board.It has 36KB internal RAm and 256KB internal FLASH.My configuration on touchGFX like below:And my linker result is like below:As you can see there is still %55 empty on my internal FLASH and very little SPI_FLASH is used, I would like to use only internal memory. Why this 13388B is not used on FLASH, even I force to use internal flash section on touchGFX settings. Thank you,  

Hey, I am using the RK043FN66HS-CTG LCD touchscreen (480 x 272 resolution) and have used the GT911 drivers found at:GitHub - DiveInEmbedded/GT911-Touch-driver: Simple and ready to use touch driver for Goodix GT911I have a custom STM32H743IIT6 PCB.It is currently recording coordinates incorrectly in the y- axis. Bottom right hand corner should be 480,272 (X,Y) roughly in landscape configuration. I am getting ~440,180.I have gone through the GT911 Register Datasheet but cannot seem to figure out why the readings are still off.Any suggestions why I am getting these issues. I understand the config version register has to be increment by one with each set of GT911 settings. My GT911 Config is here: static uint8_t GT911_Config[] = { 0x89, // Config version 0xE0, 0x01, // X = 480 0x10, 0x01, // Y = 272 0x05, // 5 touch points 0x40, // ModuleSwitch1 (landscape, no flip) 0x20, 0x01, 0x08, 0x28, 0x05, 0x50, 0x3C, 0x0F, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

Title edited to flag that a Blue Pill is being used.Info : [STN32F103c8Tx.cpu] Examination succeedInfo : starting gdb server for STN32F103C8Tx.cpu on 3333Info : Listening on port 3333 for gdb connectionsError:[STM32F103C8Tx.cpul clearing lockup after double fault Polling target STM32F103C8Tx.cpu failed, trying to reexamine Infò : (STM32F103C8Tx.cpu] cortex-M3 rlp1 processor detectedInfo : [STN32F103c8Tx.cpuj target has 6 breakpoints, 4 watchpointsInfo :[STM32F103C8Tx.cpuj Examination succeed Info : accepting 'gdb' connection on tcp/3333Info : device id = 0x20036410Info :flash size = 64 KiBInfo : accepting 'gdb' connection on tcp/3333[STM32F103C8Tx.cpu] halted due to debug-request, current mode: Handler HardFaultXPSR: 0x21000003 pc: 0xfffffffe msp: 0x200008be[STN32F103C8Tx.cpu] halted due to undefined, current mode: Thread XPSR: 0x61000000 pc: 0x2000003a msp: 0x200008b0.Error: Fail reading CTRL/STAT register. Force reconnectInfo : dropped 'gdb' connectionError: Fail reading CTRL/STAT re

G'day Brains Trust,Does anyone know where ST record the export classification for their products?Specifically looking for the ECCN for STM32G474RET3.RegardsGTC-BH

I am using stm32cubeprg-win64-v2-21, and I am experiencing an error.After launching the program and clicking Open File, the Open File window appears briefly, and then the program closes unexpectedly.I uninstalled it and tried using a previous version of STM32CubeProgrammer, but the same issue occurs. Rebooting the laptop does not resolve the problem either.  I have captured a video of the issue and attached it.

 CAN Bus Error and Reception Not Working – STM8AF5268Hi,I am working with STM8AF5268 and implementing CAN communication using the STM8S/A Standard Peripheral Library.Hardware SetupMCU: STM8AF5268CAN Transceiver: SN65HVD1050CAN Analyzer: Waveshare USB-CAN-FDBaud rate: 100 kbpsTermination120Ω across CANH and CANL at STM8 sideUSB-CAN-FD termination enabledMeasured ≈ 60Ω across CANH–CANLSN65HVD1050 VCC = 5V (verified).Common ground connected between STM8 board and analyzer.Clock Configuration  CLK_DeInit(); CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1); CLK_PeripheralClockConfig(CLK_PERIPHERAL_CAN, ENABLE);   CAN Initialization  CAN_Init( CAN_MasterCtrl_AllDisabled, CAN_Mode_Normal, CAN_SynJumpWidth_1TimeQuantum, CAN_BitSeg1_11TimeQuantum, CAN_BitSeg2_4TimeQuantum, 10 // Prescaler );   CAN Transmit Code  uint8_t test_data[8] = {0x22,0x33,0x44,0x55,0x56,0x66,0x77,0x66}; CAN_Transmit( 0x321, CAN_Id_Standard, CAN_RTR_Data, 8, test_data );

I am developing a Battery Management System (BMS) for a hybrid inverter solar panel system. I am using the ADBMS1818 IC as the battery management chip from Analog Devices. Currently, I am looking for a suitable MCU for my system. I found that the CYT2B7 MCU from Cypress Infineon fits my system well. However, during the development process, I need to use an MCU from STMicroelectronics. Could you recommend a series that meets my needs? Below are the specifications of the CYT2B7 Thank you for your assistance.

Title edited to note that this is a clone ST-Link.Using a WeAct mini STM32H723 Core board which seems to be working fine via SWD and a gold STLInkV2 USB stick. (STLinkV2 firmware V2j46S7).Using STM32CubeProgrammer v2.21.0 seems to work ok, connected under SWD, 4kHz, Normal mode, S/w reset, reliable speed, non shared (my usual settings that work with all the other STM32 boards I have).But when I tried the "Full chip erase" (or erase selected sectors), it merely reports erase successful with no errors. However the flash remains unchanged.Using STM32CubeIDE 2.0.0 however, I can successfully download my code to the board (which proves the flash can be erased using the STLinkV2 h/w).Not sure where the problem lies as yet, but have put this issue up here in case others have the same problem with STM32CubeProgrammer.Will post an update here or on the WeAct github site if I make progress to finding why its not working.

I have an STM32H7S78-DK and I have used TouchGFX to create a GUI just fine. I am currently trying to use the fanout or the Arduino headers to communicate through SPI or UART to another board.  The first thing I tried was using the SPI through the fanout board as it's soldered for the SPI4 by default with the fanout board.  I used the female headers on the fanout board that corresponded with MOSI, MISO, etc for the SPI.  I configured SPI4 in STMCubeMX and generated the code in STMCubeIDE.  I just tried to send an array with Hello in the array in the form of hex values.  However, I saw nothing coming out of the pins when I hooked it up to a logic analyzer. I then thought maybe I was using the wrong header and soldered some male pins next to the female pins which said CN12 which corresponded to what it said in the fanout boards documentation. I thought maybe the microbus female headers were not the right ones to use.  Generated all the code and tried again an

Hello Support Team,Good day,For product development, we chose the STM32U585 family, a trust zone-based MCU. Consequently, we are having a problem when we generate projects using Cube Ide.I've listed the actions we're taking below.Selected IC STM32U585AII6Enabled TrustzoneEnabled X-CUBE-FREERTOS and active for non-secure regionGenerate a project codeCompile code as per generated toolWhen I compiled code we have seen below compilation error undefined reference to `SecureContext_SaveContext' portasm.c undefined reference to `SecureContext_AllocateContext' port.c undefined reference to `SecureContext_LoadContext' undefined reference to `SecureContext_Init'I've included a screenshot of the error for debugging.