STM32 MCUs

Trying to run timer2 to set pwm signal for the BLUE LED (PA5).The MCU is STM32U083MCT6 and I used rm for STM32U083MC series (https://www.st.com/resource/en/reference_manual/rm0503-stm32u0-series-advanced-armbased-32bit-mcus-stmicroelectronics.pdf)I set each bit and register separately to be sure that everything is set correctly, but still miss something related to TIM2.What settings to check related to TIM2 and what is the best approach to configure timers of this MCU?

I used stm32g030c8t6 ， I want to create the  External loader by stm32cubeIDE， but I don't understand how to create，Are there any operation instructions? flash：w25q64 ， interface is SPI-2

I all,I have a question regarding the EVSPIN32G4 board, specifically concerning the feedback resistors used in the current sensing network (default value: 11 kΩ).I am considering replacing them with 150 kΩ resistors. My main concern is whether this significant change will trigger the Overcurrent Protection (OCP) prematurely or cause stability issues with the internal op-amps.Has anyone experimented with such values, or are there specific hardware limitations I should be aware of?Best regards, Jules

Hello Everyone,I recently purchased STM32H7S78-DK.I'm looking for the code that runs on the discovery kit.As I understood from my collogue there should be an application that defines all the peripherals via cubeMX.I've downloaded the repository for this DK but all I see is examples that covers some of the peripherals and not one application that defines all the peripherals. I would if someone can share with the link for this application that define all the peripherals. 

Hi everyone,I am working on a custom board based on the STM32U575RGT6 (TrustZone enabled, FreeRTOS). I have successfully ported the SBSFU example originally provided for the B-U585I-IOT02A.My configuration is:MCUBOOT_APP_IMAGE_NUMBER = 1 (Single combined S and NS image)No external loader.To meet my application needs, I added a custom FLASH_STORAGE area at the end of the flash for EEPROM emulation. To do this cleanly, I modified flash_layout.h to dynamically compute the available FLASH_NS_PARTITION_SIZE based on the remaining space.The Problem: When I use MCUBOOT_OVERWRITE_ONLY, the OTA update (via Y-Modem) works perfectly. However, when I try to use the Swap mode (by commenting out #define MCUBOOT_OVERWRITE_ONLY), the firmware download succeeds, the board reboots, the bootloader validates the signature, starts the swap process, but then crashes with a status write fail:FWUPDATE --- Démarrage de la mi

Hello everyone, I’m working on the STM32G474RE and trying to generate two independent PWM outputs using the HRTIM peripheral. To get started, I followed this tutorial: wiki.st.com/stm32mcu/wiki/Getting_started_with_HRTIM For my first PWM output, I used: Timer: HRTIM1 Channel: CHA1 Compare Unit: CMP1 This one works perfectly , the duty cycle changes correctly when I update the compare value.   The problem When I tried to add a second PWM output, I followed the exact same steps as for the first one, except I used: Channel: CHC1 Compare Unit: still CMP1 (as shown in the tutorial) However, this second output (HRTIM1_CHC1) is always stuck at 50% duty cycle, no matter what compare value I write. Even if I set the compare value very low or very high, the output waveform stays at 0.5 duty cycle.   What I checked The GPIO pin for CHC1 is correctly configured in alternate function mode. The timer is enabled and running. The compare register is being updated (I

Split from: Evaluation of Encoder Signal Level Shifting Approach as that was a different issue, and has been solved.I am also working with this same issue, in my case i have a encoder operating at 24V, and signal in comparable frequency i have implemented a simple voltage divider, the circuit works just fine, but as i don't have equipment to measure the noise and also i would prefer to have galvanic separation to my MCU, so in this case is there any good suggested  level shifter or optocoupler, should i combine the both strategy of voltage divider and optocoupler or just 1 is fine (from perspective of noise and safety)?

Hello,I'm trying to get familiar with the STM32Cube extension for VSCode.I generated a basic STM32 project using STM32CubeMX, for my NUCLEO-H723ZG board.I then imported the generated cmake project using the extension tool, and configured it using the "setup STM32Cube project(s)" button of the extension, which created a launch.json file.When I try to run the debug config, I get the following error : bound doStepSettingsValidation Failed: Device not found: Error: Missing CMSIS_PACK_ROOTHere is the STM32Cube core output :025-10-20 16:19:33.002 [Info] Adding STM32Cube CLI path to environment: c:\Users\Jacques\.vscode\extensions\stmicroelectronics.stm32cube-ide-core-1.0.3\resources\binaries\win32\x86_64 2025-10-20 16:19:33.057 [Info] Configuring CMSIS_PACK_ROOT environment: C:\Users\Jacques\AppData\Local\stm32cube\packs 2025-10-20 16:19:33.099 [Info] Configuring CUBE_BUNDLE_PATH environment: C:\Users\Jacques\AppData\Local\stm32cube\bundles 2025-10-20 16:19:33.805 [Info] cube wrapper version

bound doStepSettingsValidation 失败：找不到设备：缺少CMSIS_PACK_ROOT 

hi dear,I created a project by selecting CMake as the toolchain and ST-ARM-CLANG as the compiler using the STM32Cube extension for VS Code (3.7.0) on macOS. Attached below are my configuration settings.    The project builds successfully without any issues in the terminal. However, I am seeing the following error in the VS Code editor:"error: unknown argument: '--multi-lib-config=...'""message": "Unknown argument: '--multi-lib-config=/Users/myName/Library/Application Support/stm32cube/bundles/st-arm-clang-hybrid-19_1_6-description/0.0.6+st.1/etc/multilib.gnu_tools_for_stm32.yaml'",clang(drv_unknown_argument) Please let me know if there`s a solution for this. Thanks! Also, I would like to know how to enable float support for printf() in the CMake-based ST-ARM-CLANG environment.  

Dear ST Support Team,I am currently working with the STM32N657X0H3 microcontroller.We are attempting to use the internal 4.2 MB continuous SRAM (starting at address 0x34000000) as the framebuffer for LTDC.The procedure followed is:• Writing pixel data into internal SRAM at 0x34000000• Configuring LTDC_Layer1->CFBAR with the same framebuffer address• Enabling LTDC and RGB outputHowever, when using the internal SRAM (0x34000000) as the framebuffer, the RGB output signals remain inactive.When we configure the framebuffer in DTCM memory (as mentioned in the reference manual), the RGB signals become active and function as expected.However, the DTCM memory size is very small and not sufficient to hold a full framebuffer for our display resolution. Therefore, using DTCM is not a practical solution for our application.We have verified the following:• AXI read/write test passes successfully• Framebuffer base address is correctly configured• LTDC timing configuration is correct• RGB pin confi

Hi, I am using STM32CubeMX 6.16.1 with a STM32H503RB and I have exactly the same problem :  RCC is configured with LL library (not HAL), here is the SystemClock_Config() function generated by STM32CubeMX :  void SystemClock_Config (void) { LL_FLASH_SetLatency(LL_FLASH_LATENCY_5); while (LL_FLASH_GetLatency() != LL_FLASH_LATENCY_5) { } LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE0); while (LL_PWR_IsActiveFlag_VOS() == 0) { } LL_RCC_HSE_Enable(); /* Wait till HSE is ready */ while (LL_RCC_HSE_IsReady() != 1) { } LL_RCC_LSI_Enable(); /* Wait till LSI is ready */ while (LL_RCC_LSI_IsReady() != 1) { } LL_RCC_PLL1_SetSource(LL_RCC_PLL1SOURCE_HSE); LL_RCC_PLL1_SetVCOInputRange(LL_RCC_PLLINPUTRANGE_2_4); LL_RCC_PLL1_SetVCOOutputRange(LL_RCC_PLLVCORANGE_WIDE); LL_RCC_PLL1_SetM(12); LL_RCC_PLL1_SetN(250); LL_RCC_PLL1_SetP(2); LL_RCC_PLL1_SetQ(4); LL_RCC_PLL1_SetR(2); LL_RCC_PLL1P_Enable(); LL_RCC_PLL1_Enable(); /* Wait till PLL is read

 Hi ST Community,I’m working with STM32WBA (STM32WPAN / BlueNRG-style stack APIs). I’m using Extended Advertising on the peripheral (connectable + scannable, secondary PHY = Coded) and a STM32WBA central that scans and then calls aci_gap_create_connection().ProblemConnection is intermittent: sometimes it connects, but often the peripheral prints multiple times:HCI_DISCONNECTION_COMPLETE_EVT_CODE - Connection Handle: 0x01 - Reason: 0x3E (repeats 4–5 times)The central does retries very often, so the peripheral sees repeated disconnect events before it finally connects.Setup detailsPeripheral (Extended Advertising)Advertising set configured as connectable + scannable:u16Property = HCI_ADV_EVENT_PROP_CONNECTABLE | HCI_ADV_EVENT_PROP_SCANNABLE;Primary PHY = 1M, Secondary PHY = Coded (0x03):aci_gap_adv_set_configuration(..., primaryPHY=0x00, secondaryPHY=0x03, ...)Address type used in advertising set:u8AddressType = GAP_STATIC_RANDOM_ADDR;Advertising channels 37/38/39 enabledTX power se

Hello ST team,I am using Nucleo H753zi board, and I wanted to use X-CUBE-MEMSMIC1 expansion for sound source localization.I have already designed simple PCB to use MEMs microphone and connect it to H7 board's ADC. I want to understand how I can program my board to use 4 mics- GCC-PHAT algorithm to get location of sound source. I have gone through UM2212 and UM1901. Due to lack of experience in this field, can you guide me through how I can use this X-CUBE-MEMSMIC1 expansion for sound source localization? I found this diagram helpful and would like to understand how should I code to feed data from cache to Acoustic SL for processing.  

 i have issue like i can't generate adc value and i have issue like showing target not founded  and my stlink is not connecting with stm32programer 

Hi all!I'm handling project which use communicate RMII TCP/IP. if i set up CPU clock is 200Mhz as picture 1, the system run OK, i can ping network but my system require CPU clock is 400Mhz. if i set up CPU clock is 400Mhz, the connection between board and serve was intermitten. can you help to take alook and share me solution to set CPU clock 400Mhz and can run RMII.   

According to Datasheet, I2C of STM32F413VGT can be increased to 1 MHz, is it possible?    

Hi ST team,I am trying to develop a secure bootloader and firmware update solution for STM32H735 MCU. I was looking at ST's implementations, SBSFU legacy and SBSFU by MCUboot. Could you give me some guidance, which would be the better choice to start from and port to my chip? I saw that SBSFU by MCUboot is targeted only to STM32H7S, and not STM32H7, so I assume if I want to go with MCUBoot, most of the code built on top of MCUBoot by ST is not going to be usable for me, is that correct?I need these features for the bootloader:immutable bootloader implementationapplication authentication (using signature verification)secure application updateanti-rollback protectionA/B update scheme to provide a fallback optionPreferably support for TCP communication for image download (or allowing easy integration for it)Thank you for your help.

안녕하세요. 저는 개인 개발자 입니다. 이번에 steval ctm051 보드를 구입해서 srm 을 공부하려는 데 소스코드를 제공할 수 있다고 해서 어떻게하면 소스코드를 제공 받을 수 있는지 알려 주시면 감사하겠습니다. Please note that the forum is English-speaking, which is why I have machine-translated your question into English: Hello. I am an individual developer. I recently purchased the steval-ctm051 board and would like to study SRM. I was told that the source code can be provided, so I would appreciate it if you could let me know how I can obtain the source code.

Hello, I'm looking for some advice on how to progress, beginning from a fairly novice position, with a secure bootloader.  I'm beginning a project where at least a secure update process (where the existing application does the update) is desired.  Ideally I'd have an encrypted and signed application updates being delivered to my target application and put that away in flash, then reset the MCU and have a bootloader validate / process the update. I've found Zephyr and had a small play with the MCUBoot -- its seem pretty cool,  though I also found that some combinations of options created interesting build failures that were confusing.  I've just stumbled across the SBSFU project - which appears to utilise some of MCUBoot, but I'm having a slow time making sense of it, with its half a dozens projects and plethora of source files.  If there is not a STM project that can be configured and directly used on the U575 -- I'm hoping there is at least an overview / walk

Hello everyone, I am new to STM32 and recently purchased the STM32 NUCLEO‑F446RE development board to start learning microcontrollers. While studying the clock configuration, I saw the option to use HSE (High Speed External oscillator). Since I am a beginner, I searched about it and found suggestions saying that I may need to add an external crystal and capacitors and solder them onto the Nucleo board. However, I am not sure whether this is actually required for this board. I also read that the Nucleo board might provide an 8 MHz clock from the onboard ST-LINK via MCO, which can be used as the HSE source. So I would like to clarify: Do I need to add an external crystal oscillator to use HSE on this board? If yes, what crystal frequency and capacitor values are recommended? Can anyone suggest reliable components or purchase links for the required oscillator? I would appreciate any guidance. Thank you!

在使用最新版本的CubeMX 6.17.0 配置STM32G474QETx系列的HRTIM时，Dead Time明明没有启用，但是显示TA2的置位输出源无法配置。

I had a Windows account with a space in user folder name (between forename and surname). VScode was installed under AppData subfolder. As a result CMake generated paths like this into compile_commands.json:"command": "C:\\Users\\MIKKLE~1\\AppData\\Local\\STM32C~1\\bundles\\GNU-TO~2\\1431_S~1.2\\bin\\AR19DD~1.EXE -DDEBUG....Most of the things worked (compiling and debugging), but vscode highlighted that it can't find includes like these:#include <stdio.h>#include <assert.h>To be correct, clangd language server couldn't find them. Absence of these headers caused further errors. But when resolving other headers like stdint.h, clangd found them from st-arm-clangd bundle folder instead of compiler folder.The workaround was to add the very same shortened path as query driver into .vscode\settings.json: "--query-driver=C:\\Users\\MIKKLE~1\\AppData\\Local\\STM32C~1\\bundles\\GNU-TO~2\\1431_S~1.2\\bin\\AR19DD~1.EXE"It solved the clangd issue temporarily until ST tools rewrote s

When I calling NVIC_SystemReset() in the os task, the system will enter into hard fault handler error, so I have to call NVIC_SystemReset() again in the HardFault_Handler() to reset the system, so what is the proper way to call NVIC_SystemReset() in the os task?  

Upgraded STM32CubeIDE to 2.0.0 and struggling with issues!Installed CubeMX as a standalone program too. Now I'm confused how to create a STM32 project and as usual select C++ as the target language. 1- Should I start from the IDE? There'll be no .ioc file then!2- Should I start from CudeMX? There'll be no option to select C++ as the target language! How to fix it?My purpose is to keep main.c, create .hpp, .cpp files and include the header in main.c to be able to call the functions defined in the .cpp file.