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The new community seems to be very slow in terms of surfing it (3/6 second for each page load). It’s definetly not my internet as I’ve 1gbps and before it was super snappyEDIT above seems back to normalI’ve figured out that there’s no HTML view when edit the post________________________________________________________________________________________________ Another thing is that the answered questions have basically the same feeling of the unanswered ones. A green checkmark is not enought in my opinion. It should be highlighted more. 

Hello ST Community,I am working with the STEVAL-DPSLLCK1 LLC full-bridge evaluation kit, specifically the STEVAL-DPS334C1 STM32F334 control board. My goal is to access and monitor the LLC firmware variables using STM32CubeMonitor through ST-LINK.For STM32CubeMonitor variable access, I need a firmware executable with debug symbols, such as an IAR .out file or an ELF file. The .bin file is not sufficient because it does not contain variable names or debug information.I downloaded the available ST firmware package for the LLC kit and opened the IAR workspace in IAR Embedded Workbench for ARM 9.70.4. IAR asked to convert the old project to the newer format, and I accepted the conversion. After conversion, the project fails to build, so no .out file is generated.The main errors are:Error[Pe018]: expected a ")"These occur mainly in:Control_Layer.cFault_Processing.cLLC_PWMnCurrVoltFdbk.cStateMachine.cparser.y / y.tab.cThere are also many warnings like:Warning: The header file 'cmsis_iar.h' is

Hi, Could somebody please explain why CAN on the NUCLEO-C5A3ZG is not populated? 

Hi,good day,would like to seek help for this question.what is the difference between L9906TR VS L9906QTR?.tried looking for documents online but can't find for L9906QTR.thank you for understanding and help.

Dear Engineers, is there any way of routing the internal OPAMP output of the STM32C5 to an ADC directly, or can it only be wired to the COMP1 ?CubeMX2 doesnt let you pick OPAMP as an input to neither ADC nor COMP, but i did find some notes on beeing able to route the OPAMP output to COMP1 minus input in the LL code somewhere.If yes, is there a way to do this within MX2, or does it have to be written by hand in code?Also, the datasheet shows a pin output option for the OPAMPs output on PA6. I know you could route form PA6 to a neighboring ADC input capable pin, but not only would that occupy 2 pins, my PA6 is in use for UART, so not usable in my case. Thanks in advance.

Hi, i experimented the following configuration STEVAL-MKBOXPRO with BLEMLC code available within FP-SNS-STBOX1 package. For my specific application, i want to increase the BLE transmit power of the BlueNRG-LP chip of the MKBOXPRO. So i modified the code with the aci_hal_set_tx_power_level(1,31) +8dBm (since default value was  aci_hal_set_tx_power_level(1,4) -16dBm). Everything is fine with compilation with Cube IDE. But in practice with the app ST BLE Sensor v5.2.6, the real connection distance still remains about 25m, with a disconnect when RSSI is about -92dBm. These values are correct but what is not correct is that any tries to change aci_hal_set_tx_power_level with different "theoretical" power levels (from -54dBm to +8dBm) do not change anything in practice. It looks like aci_hal_set_tx_power_level has no effect on "real" transmitted poser. Any help will be welcomed to this topic. Thanks reading et thanks in advance or your help. Christian

Hi,I am working with the STM32MP135F-DK board and built an SD card image using Yocto Scarthgap (openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06).The image boots successfully. To prevent the Year 2038 (Y2038) problem, I confirmed that require conf/distro/include/time64.inc is already included and processed in the distro configuration.To test Y2038 compliance, I manually set the system time to the year 2040.The time was set successfully, and verifying it via the date command showed the correct time (2040).Checking the RTC using hwclock --show --verbose also returned the correct time in 2040.NTP is explicitly disabled via timedatectl set-ntp false, so network time synchronization is not causing any interference.The Problem:The issue occurs upon a reboot. After the system reboots, the time rolls back to the year 2024.My Analysis:Upon looking into the Linux kernel source (drivers/rtc/class.c), it appears that the kernel clamps or prevents system time overflow. This seems to be a fallback mech

Hello,Please review my schematic. I am using STM32F030RCT6TR. I have attached screenshots of the schematic and the peripherals interfaced with it. Recommend EMI/EMC related suggestions.NOTE: this STM will be controlled and is interfaced by ESP32 S3 for IO purpose by UART protocol. Following are the sections I have attached screen shots of:STM32 controller ICUARTRTCWATCHDOGDEBUG UARTDECAPAND GATE IC All suggestions/recommendations will be welcomedThank You!

Is the overcurrent protection set to 3A on the STSPIN840? If so, is there a way to change the trip value of the overcurrent protection to better align with its application? I want to change it so that the overcurrent trips at 1A. Thank you!

I have a STM32U585 (edit: ...VIT6, so not the one where this doesn't work due to errata) product with Trustzone enabled, Bootlock disabled and RDP level 0.I want to bring this into ST bootloader mode from software (for easy Firmware change via USB).To my understanding that would mean implementing the last entry of Pattern 12 from AN2606  Which means the following code, executed from secure side.RCC->APB3ENR |= RCC_APB3ENR_SYSCFGEN; //clock is disabled after startup, so enable __DSB();//make sure data is written SYSCFG->RSSCMDR = 0x1C0; //pattern from AN2606, RM says any value will do? __DSB();//make sure data is written __NVIC_SystemReset(); //SW reset But all I get is a restart to SECBOOTADD0. And RSSCMDR is zeroed out afterwards, even though the RM states that it is only affected by power on reset.What am I doing wrong?

After a long time, i started to look into using the BLE_Thread_dynamic stack image on WB55 again. First without success with my own code on my own board, which I do think to remember worked before.But afterwards with the BLE_Thread_dyn example on a WB55 Nucleo Board and that doesn't work as well. This is how the FUS Info looksAnd this is where it gets stuck Any Ideas what I might be doing wrong?I already tested with and without "Start Wireless Stack" from the programmer. Not using it, makes it stop even earlier, at hci_reset.Starting to look into older stack images now.Edit: I went back up to 1.18 (using the example code from 1.24, which seems to be untouched since way back) and nothing worked :thinking_face:.

We are developing a project using the STM32H743ZIT6 where RTC timekeeping is a critical requirement. During field testing we noticed significant RTC drift on our board. We tested the same hardware three times — each time flashing a different RCC_LSEDRIVE_* setting  to identify which drive level gives the best RTC accuracy. Sharing the full details below test results, firmware, and hardware in case others are facing the same issue.Quick Results We ran a 16-hour test measuring RTC drift on the same STM32H743ZIT6 board, flashed three times with a different RCC_LSEDRIVE_* setting each time."Drive setting Drift over ~16 hours PPM RCC_LSEDRIVE_LOW 69 seconds ~1161 RCC_LSEDRIVE_HIGH 30 seconds ~519 RCC_LSEDRIVE_MEDIUMHIGH 6 seconds ~101 RCC_LSEDRIVE_MEDIUMHIGH gave the best result by a large margin. RCC_LSEDRIVE_LOW — which is often recommended as the default — gave the worst result on our hardware.Hardware DetailsCrystalParameter Value MPN ECS-.327-6-12-TR Frequency

Hello everyone,I have encountered an issue with the STM32WB05KZ on a custom board which only allows me to flash the board under very specific conditions. The first time out of the box, everything works fine, I can flash using a ST-LINK V3-PWR straight from CUBEIDE V1.18.0. After this first time programming, the board becomes fully unresponsive to the debugger. My code does seem to run (verified by two LEDs connected to PB4 and PB5). When using STM32CubeProgrammer, the system reports that it's unable to read the Chip ID. After much trial and error, I've found that by disconnecting the reset pin from the debugger and pressing the Close Debug button in the Debug Authentication (which I haven't enabled anywhere) menu, I can connect to the board through the STMCubeProgrammer software. I was wondering if this behaviour is to be expected, because I can't find it in the Reference manual or Datasheet. And if this behaviour can be disabled. For context:- The board has a 32 MHz crystal and a

Hello,I'm sorry to bother again, but it seems there is another issue in the latest update of VSCode STM32IDE extension. While trying to Start Debugging with GDB Server (STM32Cube Debug STLink GDB Server v1.3.0), with launch.json as: "version": "0.2.0", "configurations": [ { "type": "stlinkgdbtarget", "request": "launch", "name": "STM32Cube: STM32 Launch ST-Link GDB Server", "origin": "snippet", "cwd": "${workspaceFolder}", "serverReset": "Connect under reset", "preBuild": "${command:st-stm32-ide-debug-launch.build}", "runEntry": "main", "imagesAndSymbols": [ { "imageFileName": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}" } ], "faultUnalignedAccess": false, "liveWatch": { "enabled": true, "samplesPerSecond": "4" }, "preRunCommands": [ "set output 16" ] } ] } The Debug starts and I get an error message as:PARSE ERROR: Argument: -cp (--stm32cubeprogrammer-path) Argument already set! Brief USAGE: C:/Users/.../AppData/Local/stm3

I've seen the other post, but my issue is different. I'm now getting:Rolling back doesn't seem to be fixing this issue, even though nothing about my setup has changed since 2 weeks ago.I can't even figure out if it's the update causing this issue thanks to this utterly useless update information:Spoiler (Highlight to read)Breaking ChangesComplete architecture redesign: The tool architecture has been split into three major building blocks with the purpose of creating a flexible, maintainable and updatable platform consisting of the following blocks: GUI, CLI tools and STM32 device support.Breaking ChangesComplete architecture redesign: The tool architecture has been split into three major building blocks with the purpose of creating a flexible, maintainable and updatable platform consisting of the following blocks: GUI, CLI tools and STM32 device support.What changed?!How am I supposed to update my 3.8 configs to 3.9?

We are designing an STM32-based SOM and want to know whether STM32H7 controllers support DDR memory, or if DDR support is available only in STM32MP series. Please suggest compatible STM32 controllers and reference designs for DDR interfacing.

Hello.I would like to use ST AIoT Craft with a SensorTile Box Pro and the MKI234AA DIL24 board to have an external LSM6DSV16BX IMU (different from the onboard LSM6DSV16X).Six months ago, in December 2025, the accelerometer and gyroscope data logging from the LSM6DSV16BX was visible in the ST AIoT Craft interface, and I was able to collect data successfully.Today, I can no longer select the LSM6DSV16BX device because it is no longer visible in the available sensor choices. As a result, I am no longer able to collect data from it.I find this situation rather surprising, and I understand that ST AIoT Craft has evolved since the version I was using in December 2025.However, when creating a new project, it is still possible to select the SensorTile Box Pro and then choose the external board STEVAL-MKI234KA. The issue is that during the data logging phase, the LSM6DSV16BX sensor never appears among the available sensors, making it impossible to collect accelerometer and gyroscope data from t

Hi,Thanks for your response.Where can I get schematic of STM32100E-EVAL or similar board?    

Hi, Can I use DAC of STM32L476RCTX for audio application. I have to give output of DAC to MAX97220(Audio amplifier IC). Frequency range of audio is 10Hz to 20kHz. Can you please suggest any application note for this. Audio files will be fetched from SD card with SPI interface.Can you please suggest any code example or library that is already available for this type of example.  Regards,Anurag 

Hi ,I have a board that has a STM32H562xxx , I have 4 analog inputs mapped on ADC1 IN1, IN14, IN15 and IN18 single ended … ( PA1, PA2, PA3,PA4 ), TRGO TIM8 I have DCACHE1 disabled HAL_ADC_ConvHalfCpltCallback - gives a flag the cvt is completedI have a uint16_t dmaBuffer[4]When I run it the variable dmaBuffer[0..2] have values ~220 with small oscillations and only dmaBuffer[3]  with correct values from ADC1It’s the first time I used this board and 1st to have CACHE … otherwise I eventually disabled it.Can anyone help ? What info do I need to provide so I get little help make this work ?ThanksCristian 

I am using the STEVAL-25R300KA board with ST25PC-NFC version 3.0.2 on a PC running Windows 11.The software opens for a few seconds and then closes automatically by itself. I have already tried the following steps:Reinstalled the softwareRestarted my PCInstalled both x64 and x86 versions of the Microsoft Visual C++ Redistributable packagesChecked the Windows Event Viewer / Journal logs for any related errorsUnfortunately, none of these steps resolved the issue, and no specific error was detected in the logs.Could you please let me know what I can do to fix this problem and use the software properly?Thank you for your support.

Hello,I am working on the STM32MP257F-DK board and would like to use two Ethernet interfaces simultaneously for industrial network communication.The board provides:One onboard RJ45 Ethernet connector. One USB Type-C connector that, according to the documentation, can also provide Ethernet connectivity.My objective is to establish a network ring topology, where both Ethernet interfaces are connected to external devices using RJ45 Ethernet cables.I would like to understand:How can the USB Type-C Ethernet interface be converted to a standard RJ45 Ethernet connection? Does the USB Type-C port support Ethernet through a USB-to-Ethernet adapter (USB Ethernet dongle)? If yes, are there any ST-recommended USB-to-RJ45 adapters that have been validated with STM32MP257F-DK? Under Linux/OpenSTLinux, will the onboard RJ45 and the USB Ethernet adapter appear as two independent network interfaces (for example eth0 and eth1)? Has anyone implemented Ethernet ring topologies such as MRP, RSTP, PRP, or c

Hello,After the migration to the new Community Platform, I appear to have lost access to my previous community account.When I logged in today, I was unexpectedly asked to enter a nickname again. After doing so, I received the following email:"Your account is successfully activated."Since then:* My badges have disappeared.* My post history is empty.* Links to my previous topics redirect to the community home page. One example is my topic:VL53L1X returns 0x00 instead of 0xEA on PIC18F16Q41 hardware I2CThread ID: 901006The topic still appears in Google search results, including the title, replies, and accepted solution, but clicking the result redirects to the community home page.Could you please check whether my previous community account and content were properly migrated?Thank you for your help.Best regards,AndyO 

Hello ST Community,Before releasing the next revision of our prototype board, we would like to verify that the hardware implementation of the ST33KTPM2I is correct and that there are no hardware design issues.Currently, the ST33KTPM2I is implemented as an optional component on our board. Before modifying the board design, we would like to perform some basic functional checks to confirm that the device is operating properly.Our interface is SPI.Is there any recommended way to verify communication with the ST33KTPM2I? For example, is it possible to read a device ID register or any other status information to confirm that the device is responding correctly?We reviewed the datasheet, but it does not appear to provide details about accessible registers or a register map. Therefore, we are not sure what commands or procedures can be used to perform a basic hardware validation.Thank you very much for your support.Below is our hardware schematic:  

One of the AF options on SPI1 is to use the SWD debug pins PB3-PB5.How can this be used in reality?Pretty obviously you can't do SWD breakpoints when SPI1 is thus mapped!But assuming no SWD debugging is needed, and you use SWD just to program the FLASH, how does one implement this? AFAICT one would need - on SWD inputs, FLASH loading will work- on SWD outputs (e.g. SWO - the SWV ITM debug output), FLASH loading works because these pins power up in some mode suitable for SWD FLASH programming.Then when the code starts running, you will need some logic to disconnect the debugger, so the clock and data SPI signals can come out, without contention with the debugger.Maybe I am missing something obvious. Or maybe this SPI1 AF mapping option is intended for FLASH programming not via SWD but via a UART, CAN or the weird USB mode.PB3 may not need anything because the SPI CLK is an output and the SWD SWO signal is also an output