Solved

I cannot get STM32WLE5 (on a RAK3172 module) to exit from stop mode on either RTC timer or rising EXTI pin. I'm using STM Cube HAL functions and the stm32_lpm_if.c library. I have tried pin PB3 as either  EXTI3 or as PWR_WKUP3. If I use EXTI3, I set an interrupt handler. The handler gets called when the pin goes high in normal running, but when in stop2 mode, it does not wake up. Does anyone have example code using this chip/module to do a wakeup on timer OR external pin?

Hi there,I was trying to generate a STSPING4 project with MCSDK 5.Y.4.All the config and pin checks are successful.However, there is an error in the attached picture; also, the full LOG is attached.Seems some paths are incorrect, but I don't know how to fix them.Maybe I need to install something more? Or need to copy some folder somewhere?Thank you very much.

I have a few screenshots from a slide deck about the STSPIN32F0,but I can’t find the original presentation.It looks like it’s about PCB layout guidelines.Does anyone know where to get the full slide?       

Hello, I am trying to use a HighTec Free GCC license with AutoDevKit Studio 2.6.1, but I cannot compile my project. Setup: OS: Windows IDE: AutoDevKit Studio 2.6.1 License: Free GCC Installed compiler: Only VLE compiler (ppc-vle-gcc.exe) is present; ppc-free-gcc.exe is missing Problem: AutoDevKit shows “No license for product (-1)”. Project’s Toolchain Editor only lists the VLE compiler. I am unable to add the Free GCC compiler manually because the executable is not in the installation. Request: Please provide instructions or a link to obtain the PowerPC Free GCC compiler (ppc-free-gcc.exe) compatible with my license. Guidance on installing and configuring it in AutoDevKit Studio so the license is recognized. Thank you.

Hello, We are looking to use the Wlc38 in Bi-directional mode alternating between RX and TX digital pings. We are wondering how much power consumption the digital ping takes and for what duration so we can calculate power consumption of pinging at various intervals. Thanks,RJ

Hello ST Team,I am hardware design engineer at Grundfos. In our current design we plan to use ST7540 part from power line communication. We would like to know the end of life for this part ST7540.Below are the details for your information:Project name: Power line communication moduleApplication: Pump communicationAnnual volume: 10KYear of production : 2026 Q4Thank you,Regards,Ravi Kumar SutraiSenior Hardware Engineer

have a STM32F429I-DISCO board, start to a new touchgfx project from cubeide，run part file to completed touchgfx setup, cubeide compile project OK, debugging -> white screen! want to konw how to setup LTDC(double buffer -> by address, by allocate  single buffer ->by address, by allocate)

Hi, I am using Touch GFX 4.26.0 and the EWARM9 compiler.It was announced that libcpp support was available from 4.25.0 onwards.I have confirmed that IAR9.x\touch_core_libcpp.a for cortex-m7 is supported. (STM32H7)However, I cannot build touch_core_libcpp.a for other cores, such as cortex-m33(STM32U5).As a temporary measure, I am using cortex-m7\IAR9.x\touch_core_libcpp.a for cortex-m33.Could there be a mistake in the compile switch when generating the library?I had the same issue with 4.25.0, and was hoping it would be fixed in 4.26.0, but it wasn't.エラー[Li009]: runtime model conflict: Module Font.o(touchgfx_core_libcpp.a) specifies that '__CPP_Library' must be 'DLib', but module AnalogInThread.o has the value 'libc++'

Hi,I am trying to get USBPD running. I need a simple example code without RTOS. So I used CubeMX. As far as I see it should be easy. All I need to do is:- Turn on the UCPD1 under Connectivity. Here I set "Source". - Turn on the UCPD1 Interrupt- Turn on USART1 - Set the DMA settings of UCPD1 and USART1 (here I have used the settings of the working CubeH5 project)- Turn on USBPD under middlewares- Enable TRACER under utilities- Enable TRACER in USBPD under middlewares- Enable GUI_INTERFACE under utilities This config should work, but it is not working. There is no event handling.Now I need help. The ioc file is included. RegardsRoman   

I am migrating my project in CubeMX(6.15) from "FW_H7 V1.11.1" to "FW_H7 V1.12.1"I loose my QSPI configuration.It seems like a dependency to SPI2, but we are already using SPI in the old project. Please see the pictures from before and after upgrade. Also my project file file from before and after.

Hello everyone I am new to the STM boards I had received my board today I had tried the basic LED toggle code and it is working fine but can someone please guide me to see the debug message on the code like I can see the printf statements how can I see those debug messages can someone please help me.

Hello,Is there is any board delivered by STM32 with WiFi capabilities?BR

Greetings,There is a post explaining how the aci_gatt_write_char_desc() function should be used to enable notification events for a characteristic that may be notified by the server/peripheral.  The opcode, defined asrq.ogf = 0x3f;rq.ocf = 0x121;is the 16 bit opcode 0xFD21.  The September 2025 release of AN5270 (revision 32) omits this command.Can we get an update to the AN5270 with an explanation of this command?Cheers

Hello,I'm using STM32H75x and NOR flash e.g. IS29GL064. I get the NOR demo running but I'd like to do modifications in order to get rid of all the polling stuff.According to the demo, the FMC is configured like this hnor1.Init.NSBank = FMC_NORSRAM_BANK3; hnor1.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE; hnor1.Init.MemoryType = FMC_MEMORY_TYPE_NOR; hnor1.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16; hnor1.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE; hnor1.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW; hnor1.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS; hnor1.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE; hnor1.Init.WaitSignal = FMC_WAIT_SIGNAL_ENABLE; hnor1.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE; hnor1.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_ENABLE; hnor1.Init.WriteBurst = FMC_WRITE_BURST_DISABLE; hnor1.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ASYNC; hnor1.Init.WriteFifo = FMC_WRITE_FIFO_ENABLE; hnor1.Init.

some time when I try to import an existing project in file system into workspace every thing looks to work properly it find the project show the project name in the list but when I clic finish it never show in workspace here my information using 1.19 release of cube ide on a windows 11 host  

I have a question regarding the absolute maximum ratings of the ASM330LHH.In the datasheet, the Vin rating lists “(including CS, SCL/SPC, SDA/SDI/SDO, SDO/SA0)”.Does this voltage range also include any overshoot and undershoot on these pins?Additionally, if overshoot or undershoot exceeds the absolute maximum ratings,what potential issues could occur (e.g., malfunction, degradation, or damage to internal circuitry)? 

Hi, I’m developing a voice-control system on ST’s STEVAL-STWINBX1 evaluation board. I’d like to build on the original “Dual-mode application with STM32Cube.AI and NanoEdge™ AI” by replacing the anomaly-detection function with a binary classifier based on IMP23ABSU microphone data (“xiaobei” vs. “other”). I also plan to replace the original USC model with a 10-class classification model trained on IMP23ABSU microphone data. The intended behavior is: when the MCU recognizes “xiaobei,” it should wake the USC model; otherwise, it should not.My NanoEdge™ AI binary model is already running—when I execute start neai_class, I can see the classification output. However, after “xiaobei” is detected, the USC model fails to wake up and the firmware even falls into HardFault_Handler in some cases. I’m not sure what’s going wrong. Could you please share suggestions? For example, after modifying the USC model parameters, which source files need to be updated so the new model is compatible with t

Hello,I have developed a custom board using the STM32MP157DAA1. When I try to write the boot image, the process stops after writing fsbl-boot and does not proceed to the next step.I checked the output from the debug port and received the following log:NOTICE: CPU: STM32MP157DAA Rev.Z NOTICE: Model: STMicroelectronics custom STM32CubeMX board - openstlinux-6.6-yocto-scarthgap-mpu-v25.06.11 INFO: PMIC version = 0x21 INFO: Reset reason (0x15): INFO: Power-on Reset (rst_por) INFO: FCONF: Reading TB_FW firmware configuration f file from: 0x2ffe2000 INFO: FCONF: Reading firmware configuration informa tion for: stm32mp_fuse INFO: FCONF: Reading firmware configuration informa tion for: stm32mp_io INFO: Using USB INFO: Instance 2 INFO: Boot used partition fsbl1 NOTICE: BL2: v2.10-stm32mp1-r2.0(debug):() NOTICE: BL2: Built : 11:48:32, Oct 29 2025 INFO: BL2: Doing platform setup INFO: RAM: DDR3-DDR3L 16bits 533000kHz ERROR: DDR addr bus test: can't access memorPANIC at PC : 0x2ffed13d Exception

Hello. I've been struggling to flash a simple TouchGFX application through the STM32 VS Code extension. I am using the Nucleo-G071RB dev board with the GFX01M2 display board. My project was initially created using the TouchGFX designer, then generated the CMake project in CubeMX. In VS Code, I added the SPI_FLASH section in  STM32G071RBTX_FLASH linker file, and the cmake/touchgfx sub directory in the CMakeLists. This allowed me to build the project with no errors. However, whenever I try to flash, I get the following:I suspect this has something the do with the external flash. I am aware of an external loader file that you have to select in STM32CubeIDE, but I'm not too sure what would be the equivalent in VS Code. 

Hi,I am working with an STM32 microcontroller (STM32 C0 & STM32H5 series) and want to implement Modbus communication without using FreeRTOS . Most examples I found are based on FreeRTOS, but I need to handle Modbus protocol in a non-RTOS environment.Are there any recommended Modbus libraries that can work without an RTOS?

Hello, I'm having problems with a simple task: receive blocks of data from UART. The blocks are sequences of 1-300 bytes, that are receiveid with a 1 second interval. The value is stored in one buffer of 350 bytes.When I send a big block of 270 bytes after other blocks(of 60 bytes by example) in that 1s interval, the Stm32 RESETS! But if the interval is longer, like 5 seconds, it doesn't reset and receive the data correctly. I tried with pooling and interruption, the result is the same. I'm using 115200 baud. Lowering the baud rate also reduces the interval that doesn't cause a reset, but I can't use this solution.WatchDog is already disabled. By this moment, the code doesn't do anything more.

Can some one help me to build a stereo amplifier with TDA 7492 p IC I cant find any pcb layout design and gerber files on internet i have an old Polk active subwoofer lying around useless with out its sound bar and i found out the IC is sameI'll drop the pdf file and circuit i got from google can anyone help me to get this gerber files or pcb layout i hope some would one see this and help me :)(sorry my English is not good)thanks 

* board - STM32N6570-DK*  using STM Cube 1.19.0* Example - USBPD_SNK In the example USBPD_SNK it tell you to view the traces like this. * Run CubeMx Monitor and open trace tools I'm guessing this is something inside of STM32Cube ide.  Not STM32CubeMonitoring app* https://www.st.com/en/development-tools/stm32cubemonitor.html So i started the trace's like i normally would in STM32CubeIde but it doesn't seem to show anything in the trace output when i run the application.  They say to use STM32CubeMonitor but when i connect both ends to my computer i don't see any com's to select.   Currently i'm not entirely sure how to enable the traces, so any help would be greatly appreciate. 

Hello, I have managed to generate a IP through the LWIP in the STM32 IDE and establish a connection via Ethernet, although now when I upload the files from hasseb/stm32h7_atsame70_ptpd: IEEE 1588 PTP daemon for STM32H7 and ATSAME70 (github.com)  I seem to have a large portion of the code in the main.c file greyed out. As well, I'm not sure if it is concerning that there is a warning saying "_gettimeofday is not implemented and will always fail". I found some documentation stating this is not too much of a concern, as it's only a warning and not an Error. Furthermore, I have tried getting an output using this function just as a test and no luck:  https://stackoverflow.com/questions/42747128/does-hal-gettick-return-ticks-or-milliseconds-and-how-to-measure-in-microsec/42749284#42749284 __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) { /*configuring the SysTick to have an interrupt in 1ms time basis*/ HAL_SYSTICK_Config(SystemCoreClock /1000); /*Configure

Hi ST Team,I’m working with an STM32F303VET6 and need help with EEPROM emulation. I’m looking for guidance on the correct Flash setup, example code for read/write, and best practices for reliability.Any ready examples or tips for integrating this into STM32CubeIDE/EWARM would be really helpful.Thanks in advance for your support!