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Hello, I flashed into WB55 FUS 2.1 and Wireless Stack V1.23. Then flashed BLE_p2pServer_reference.hex for an evaluation. But nothing happened. The device is not discovered. What is the problem? Something happened with the option Bytes after the upgrade? 

Hi everyone,I'm currently working on a project involving batteryless NFC sensors that rely on energy harvesting for their power supply. In this setup, the ST25R3916B is used as the NFC reader and is responsible for generating the RF field.The idea:The ST25R3916B actively emits the RF fieldA passive NFC sensor harvests energy from this field via its VOUTThe sensor performs lightweight tasks such as measurements or data transmission, powered entirely by the harvested energyMy questions:Is the ST25R3916B suitable for providing enough energy via RF for passive NFC sensors in such harvesting applications?Does the antenna design need special tuning to support stable energy transfer over 1–2 cm distance?Has anyone successfully powered NFC sensors drawing 5–10 mA continuously via the ST25R3916B field?Does this also work with a single-ended antenna design (e.g., using just TX1), or is a differential (TX1+TX2) configuration required for energy harvesting?Can this work with a 50 Ohm matched anten

Hello,From my understanding in FreeRTOS, there is a defined highest priority one should set for interrupts whose ISRs may call RTOS APIs (configMAX_SYSCALL_INTERRUPT_PRIORITY).For the same reasons, I would expect ThreadX to have a similar limitation, and to that extent I have found other ST forums posts suggesting one should set lower priorities for any interrupts whose ISRs may call RTOS APIs, but I can't find any documentation that explicitly states what the highest safe/allowable priority is, similar to FreeRTOS.How do I know what's the highest interrupt priority I can safely set in such cases? Is there any documentation from ThreadX that I'm missing, because I can't seem to find any mention of this.For context, I am using a U5 series MCU and I want to call queue related APIs in my CAN Rx callback.

I have the following clock tree for STM32L471I am using TIM2 as trigger for DAC, ADC1, and ADC2 at 2.4MHz. Clock frequency of TIM2 is 48MHz with a counter value of 19 and prescaler = 0.With oscilloscope, I confirmed that the DAC is generating the signal at 2.4MHz sampling frequency.The ADC1 and ADC2 are running in dual mode with single DMA channel. The following is the ADC configuration/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file adc.c * @brief This file provides code for the configuration * of the ADC instances. ****************************************************************************** * @attention * * Copyright (c) 2025 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ******************************

Hello ST Community,I’m facing a persistent issue while creating a new STM32 project using STM32CubeIDE, and I need some technical support.Problem Description: version 1.19When I create a new project, the .ioc file is not generated.The "Target IDE / Toolchain" field shows as empty (not STM32CubeIDE).Because of this, the project does not build or open properly in the IDE.I have selected the correct microcontroller, like STM32F103C8T6, but the problem still occurs.Steps I followed:Opened STM32CubeIDEFile → New → STM32 ProjectSelected correct MCUGave a valid project nameBut the project doesn’t target STM32CubeIDE and no .ioc file is createdWhat I tried:I updated STM32CubeIDE to the latest version, but the issue still exists.I tried restarting the IDE and creating the project multiple timesI checked toolchain settings, but nothing seems to be fixing itWhat I need help with:Why is STM32CubeIDE not generating the .ioc file or setting itself as the target toolchain?Is there any way to fix or c

hello everyone , When I create a new project in STM32CubeIDE (version: 1.17.0), the .ioc configuration file is not generated in the project directory. Here’s what I’ve tried:Project Type:Created via File > New > STM32 Project (using the STM32 Project Wizard).Selected my MCU/board .Expected Behavior:A .ioc file should appear in the project root after setup (enabling peripheral/clock configuration).Actual Result:Only standard project files (e.g., Core/, Drivers/, .project) are generated. No .ioc file exists.I cannot open/configure the project in STM32CubeMX.

Hi,I recently purchased the X-NUCLEO-NFC08A1 and the NUCLEO-F411RE boards. I have successfully run the example application (`PollingTagDetect`) provided in the X-CUBE-NFC6 software expansion on this platform. Moving forward, I would like to develop additional programs based on this platform for testing purposes. However, I have encountered some issues and questions, and I would greatly appreciate your guidance:1. Is there a more straightforward tutorial available that explains how to use the relevant libraries? While X-CUBE-NFC6 provides documentation, the extensive and complex nature of the documents makes it difficult to identify the key points. 2. What is the relationship between X-CUBE-NFC6 and RFAL? It is clear that X-CUBE-NFC6 includes RFAL, but what are the differences and advantages of developing with X-CUBE-NFC6? I noticed that RFAL seems to provide more intuitive guidance (https://www.st.com/resource/en/user_manual/um2890-rfnfc-abstraction-layer-rfal-stmicroelectronics.p

I am developing using X-Cube-Matter v1.4.0.I imported the BLE_Ota project onto MDK Arm and built it, but the following error occurred and I was unable to compile it.../Core/Src/app_entry.c(28): warning: In file included from...../STM32_WPAN/app\app_thread.h(30): error: 'stm32wbxx_core_interface_def.h' file not found30 | #include "stm32wbxx_core_interface_def.h" Please tell me the cause.

Dear STMicroelectronics Support,I am currently using STM32CubeIDE version 1.16.0 and facing an issue during project creation. The STM32Cube project option remains greyed out, regardless of the MCU or board selected (e.g., STM32L476RGT6, STM32H747I-DISCO).Even if I proceed with the "Empty" project type, the .ioc file is not generated, and the CubeMX interface does not open.I have already tried the following steps:-Verified that STM32CubeMX is installed and integrated-Switched to a new workspace-Fully uninstalled and reinstalled STM32CubeIDE v1.16.0Despite these efforts, the issue still persists.I have attached an image below for your reference.Please advise on how to resolve this issue or provide guidance on any known fixes.Thank you for your support.Best regards,Sai Ganesh CSZettaone Technologies

Hello,I am using TouchGFX with freeRTOS on an STM32G0 board.I call the touchgfxSignalVSync through a Timer Interrupt and quickly after I get an HardFault in the blitCopyARGB8888 function. As this is a library I cannot debug further. I am trying to go around the issue by increasing the stack size (24*3072 = 73728 bytes) but this does not fix the issue. Commenting the draw function in the touchgfxDisplayDriverTransmitBlock function does not help either.Doing a step by step debug, I see that the load looks to be the issue where the address 0x2000cXXX is loaded.  Let me know if you need any more information.Thanks! if (htim->Instance == TIM4) {touchgfxSignalVSync();}     

Hello everyone ! I use the stm32mp257f-dk with yocto for a project. To benchmark my programs, I need kinda heavy packages. To solve my IMAGE_ROOTFS_MAX issue, I followed the following topic : https://community.st.com/t5/stm32-mpus-embedded-software-and/increasing-the-rootfs-size-on-a-stm32mp157f-dk2/m-p/205665Unfortunatly, even if the distro compile, I have the following warning at the end of my compilation (see screenshot below).My configuration is the following :- local.confROOTFS_PARTITION_SIZE = "12582912"IMAGE_ROOTFS_MAXSIZE = "12582912"I tried to add the in /meta-st/meta-st-stm32mp/conf/machine/include/st-machine-common-stm32mp.inc too, but i don't have more results.I don't have any more idea to solve the issue. All the help is welcome !

Good day folks!I trust you are well.Do you know where I can find the example that was used to take the VENC power measurements as outlined on this Wiki page ?I can't seem to find it under the Applications and Examples in the STM32CubeN6 v1.2.0 Specifically I want to see how the part was configured to support the 1080p resolution.Warm regards  

MSL information for obsoleted NAND01GW3B2BN6E?Pls and TY!

I am designing a system with an STM32 and an FPGA(Xilinx 7 series).STM32 is in charge of the user interface and the FPGA is in charge of driving the LCD to show images.Information needs to be exchanged between the STM32 and the FPGA. (STM32 send a command to the FPGA to choose which image to display or to stop displaying. STM32 also need to write all logs to the SD card through the FPGA. FPGA needs to report to the STM32 how many images are displayed and how many remain.)After some research, I found SPI seems to be fast and easy to implement.(I am not sure which interface is commonly used for communication between STM32 and FPGA?). I wonder if there is another interface that is faster or easier to implement?

I am trying to work on STM32F439ZIT6 using its respective Nucleo board. I am not able to generate an ioc file even after installing the latest version 1.28.2 in STM32F4 series. Why is this happening and how can i resolve this issue?RegardsavbST

Hi,I encountered the following problem on two different computers with different versions of STM32CubeIDE. I select File->New->STM32 Project, then i select MCU or Board and click to Finish. Then pops up window called "STM32 Project" to fill up project name. Usualy there is "next" button to select another features, like which CubeFW version to use etc. But now, the "next" button is greyed out. Probably due field called "Target Project type" with greyed out option "STM32 Cube". When i hit "finish" button, IDE creates empty project without ioc file - in other words it does not open CubeMX to configure project.I am not aware of interfering with the IDE in any way (plus I observed it on two independent PCs). I am including screenshots.Thanks,MichalVersion of CubeMXCubeFW is actualEmpty projectmissing option to use Cube

Hi, gents,     I have some need to use SPI slave mode instead of working SPI master mode.     I'm tranferring 22 16-bit words from Infineon slave board at 6Mhz clock rate, once per 100 ns, and have 4-line interface including CS line. Due to noisy lines I prefer to reset communication before each 22x16 bit transfer.     The picture is attached - the 4th line represents CS signal, the 2nd line - data sent from STM32, line 3 is zero as zeros are sent.     After some attempts to write the code I came to solution, when I'm attaching a low-priority EXTI interrupt to SPI5 NSS pin (PF6 GPIO pin), and this interrupt has the following code (this code worked OK for master mode):if (GPIO_Pin == GPIO_PIN_6) { if (hspi5.State != HAL_SPI_STATE_READY) { HAL_SPI_DMAStop(&hspi5); } HAL_StatusTypeDef td = HAL_SPI_TransmitReceive_DMA(&hspi5,(uint8_t*)spi2CAT, (uint8_t*)CAT2spi, CAT_PACK_SIZE*(sizeof(int32_t)/2)); tdd = td; SPI_cnt++;

Hi, I'm creating a new project in STM32CubeIDE 1.19.0, but the .ioc file is not being generated. Online sources suggest it might be due to the FPU not being initialized. Only the files shown in the second picture are being created.

ST Documentation describes how to determine prior gains of Current PI controllers. My doubts are:1. Will these gains work for all load conditions? How to tune them under varying load conditions? What is the documentation/process related to it, please share?2. How is Motor Control Workbench auto calculating PI Gains for Speed Controller Regulator? Please share documentation/formulas related to it. Official documentation is only about Current PI controllers gains determination. Thank you for your time and support.

hello dearwe have this BULK ID, and i want to know wich is the DATA CODEcan you help meor i have to give you the trace code?

Hi,I am trying to measure the parameters of an external differential antenna I designed. I have been using the application note AN4974 in order to figure out how I can measure these parameters and I have some confusion on the setup and the results I am receiving so far.I've looked at other posts and the way I understand it is that I should connect my VNA in single-ended mode (ant1 connected to signal and ant2 connected to the shielding/body of my SMA connector). Is this correct?I have taken a measurement of a flexi antenna I would like tuned and I also tried to measure the antenna of the st25r3911b-disco board to verify if I measured the flexi correctly. My issue is that the measurements both look completely different from what I see on the application note. Using other posts as a reference, my antenna looks somewhat similar. although, my values are strange compared to others and the app. note. The first picture is my flexi antenna and the second is the antenna of the st25r39

Hello,in file RegListSTMV2.json I can define custom registers. Most registers have "UpdateFrequency" configured to "MediumFreq".How often is "MediumFreq" polled by Motor Pilot?Is it possible to configure the polling frequency in Motor Pilot?Thanks, 

 Hello everyone,I am trying to use the Vector Renderer to draw lines because it utilizes GPU2D, which offers faster rendering compared to the Canvas. Below is the code I am using for this purpose: void TestWidget::draw(const touchgfx::Rect& invalidatedArea) const { if (numPoints < 2) { return; // Nothing to draw } VectorRenderer* vectorRenderer = VectorRenderer::getInstance(); // Configure the vector renderer Rect absoluteRect = getAbsoluteRect(); vectorRenderer->setup(absoluteRect, invalidatedArea); vectorRenderer->setMode(VectorRenderer::STROKE); vectorRenderer->setStrokeWidth(lineWidth); vectorRenderer->setColor(lineColor); touchgfx::Matrix3x3 transformationMatrix; transformationMatrix.scale(scale); transformationMatrix.translate(deltaX, deltaY); // Apply the transformation matrix vectorRenderer->setTransformationMatrix(transformationMatrix); // Prepare command and coordinate arrays uint8_t cmds[MAX_POINTS] = {0}; float coords[M

Hi,I have a funny issue. I just wanted to add a Share button to my Main Screen in an STM32TouchGFX of a working Weather Station app but when I built and run the app in STMCubeIDE all the widgets which uses background images showed surprising garbage images.Then I changed the Section and Extra Section to IntFlashSection in Default Image Configuration group of Config menu of STM TouchGFX:Then I rebuilt and run the app and everything worked just fine:Who understands this?I Checked the HSPI configuration in STM32CubeMX but I could not find any wrong settings for octo-SPI, so the external flash memory which stores the images (by default) seems to be okay.In addition any ST Demo which based of TGFX works with external flash settings.What could go wrong?Thanks,Louis

Hi,I’m working on designing a custom board for industrial applications and would like to use the crystal X53T-C20SSA-25.000MHz, which is used in the STM32H7xxI-EVAL board for the LAN8742Ai PHY. However, I can’t find this crystal available anywhere. My questions are:What is the best replacement for industrial use?What capacitor values should be used if the crystal is changed?Additionally, is the ABM8W-25.0000MHZ-8-D1X-T3 a suitable replacement? If so, what capacitor values should be used? Thanks,Mohammed