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Hello, I am using an STM32L431 and found an interesting behavior with TIM1 PWM output while debugging. Test conditions: - MCU: STM32L431- TIM1 CH2 PWM output- Debugger: ST-LINK- Debug halt enabled- DBGMCU TIM1 freeze enabled (DBG_TIM1_STOP) Observed behavior: TIM2:When the debugger halts the CPU (breakpoint or single-step),the PWM output keeps its current output state as expected. TIM1:When the debugger halts the CPU and TIM1 freeze is enabled,the PWM output no longer behaves like TIM2. Additional observations: 1. MOE remains set (MOE = 1). 2. With OSSI = 0:   the output appears to become high-impedance (or disconnected). 3. With OSSI = 1 and OIS2 = 0:   the output becomes Low. 4. With OSSI = 1 and OIS2 = 1:   the output becomes High. 5. If DBG_TIM1_STOP is disabled:   PWM continues running during debug halt. These results make it appear that TIM1 enters an Idle/Off-State condition during debugger halt and the output level is determined by OSSI/OIS settings. Questions: 1. Is this expec

Hello, I have a problem with Cube Programmer API - I’m using it to read RAM addresses continuously at rates of around 300Hz using the readMemory() function. Unfortunately with every call the function starts to take more and more time to execute, causing the readout frequency to drop to 80Hz just after a few minutes. Could it be some mechanism under the hood that causes that? Is there a known workaround? Best Regards, Piotr Wasilewski

In a larger design I’m using a LD39100PU33R for a 3.3V output. The input voltage is 5V and the device has decoupling capacitors as per the datasheet. The 3.3V circuit is consuming about 0.5A and the device is capable of delivering 1A. The circuitry connected is no inductive loads, but rather a steady consumption from sensors (air pressure & temperature).I am unable to find any information in the datasheet (Section 5. Typical performance characteristics) on what temperature the device will typically be at this load, but it’s running at a constant 75C. This seems to be very high, but how can I know if this is within spec when there is no graph in the datasheet showing current vs temperature?ref: datasheet https://www.st.com/content/ccc/resource/technical/document/datasheet/72/02/e5/ee/df/36/40/5e/CD00233788.pdf/files/CD00233788.pdf/jcr:content/translations/en.CD00233788.pdf

Hi,I am working on a new Project for the STM32C562MET6 with STM32CubeMX2 and VS Code.On the first run of toolchain generation, CubeMX generates all expected folders like arch, generated, stm32c5xx_dfp and stm32c5xx_drivers.But I dont want to version all files if they can be generated so i added the folders above to the .gitignore file.After running it a second time but with those folders missing, CubeMx2 doesnt generate it. I already tried to set the “conflict handling rules” to override. Any suggestions? 

Hi ST Team,I’ve been using STM32G473VET3 for my product for the past 2 years.Right now I’m testing the code which I’ve freezed an year ago. But it enters uart error callback as soon as it calls HAL_UART_RECEIVE_IT function.(Overrun error continuously even after clearing it, Also no data is sending in that line).Hence I’ve generated new code in the cubemx also. In that also same problem arises whenever HAL_UART_RECEIVE_IT is called.IDE version : 1.18.1MX version : 6.14.0G4 package version : V1.3.0

Hi everyone,​I'm currently developing a MIDI controller/audio device for guitar VST plug-ins.​The project features a guitar audio input using the CS4272K IC connected to an STM32F446RET6. Additionally, the STM32 will operate in USB High Speed mode using Microchip's USB3300 PHY.​My main challenge at the moment is finding or designing the standalone minimum circuit (schematic) for these components to move forward with the project. Could anyone provide some guidance or share reference schematics for this setup?​Thanks in advance!

I want to download X-CUBE-SPN14, but the site keeps prompting me to sign in over and over https://www.st.com/en/embedded-software/x-cube-spn14.html#section-get-software-table

Hi everyone,I want to read data from an SPI slave using SPI3 while the MCU is in STOP2 mode.The communication protocol requires me to transmit a command before receiving the response.I configured LPBAM according to the following YouTube tutorial, and my CubeMX/LPBAM configuration is shown in the attached screenshots.My observations are:If I use only the “Transmit Data” node, everything works correctly. If I add a “Receive Data” node after the transmit node, the SPI transaction stops when it reaches the receive node. However, the “LPTIM1_CH1” output continues to generate trigger signals. If I replace them with a single “Transmit Receive Data” node, neither SPI nor LPTIM1_CH1 works.Could you please explain what might be causing this behavior? Is there any additional configuration required to use the “Transmit Receive Data” node in LPBAM with SPI3 in STOP2 mode?Thank you. 

Can ST please fix this minor interconnection line missing in the RCC clock tree figure in RM0394.JW

In a project using FreeRTOS, we had the choice in STM32CubeMX to check a box in the NVIC panel “Uses FreeRTOS functions”, see here: I would love to have this feature available in STM32CubeMX2 as well, because by default the interrupt priorities are set to 0, and therefore need to be manually set to configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY (usually = 5) in order to use FreeRTOS API in those ISRs.

Please support to update how LPS27HHW pressure sensor can detect the fall of a human being.

Heyho,working on a new project with a STM32G431, for now on a Nucleo-32 board.I have lots of things running (bare-metal, mostly no HAL), then I needed a timer with a higher resolution than the SysTick (running at 1 ms, looks valid).The only 32-bit timer is TIM2, so I set it up to simply count up, no interrupts, only with pre-scaler set to get 1 counter period of 10 us at a clock of 96 MHz. The code below is changed to a period of 1 ms, for simpler comparison to the 1 ms tick.Here’s the setup:/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ *//* TIM2 * 32 bit timer * init function * 10 us timer -> NO interrupt */void TimComInit(void){ /* peripheral clock enable */ __IO uint32_t u32TmpReg; RCC->APB1ENR1 |= RCC_APB1ENR1_TIM2EN; u32TmpReg = ( RCC->APB1ENR1 & RCC_APB1ENR1_TIM2EN ); (void)u32TmpReg; TIM2->CR1 = 0; TIM2->CR2 = 0; TIM2->SMCR = 0; TIM2->CCER = 0; TIM2->CCMR1 = 0; TIM2->CCMR2 = 0; TIM2->CCMR3 = 0; TIM2->DIER =

Hi,i can’t find recommendations for land pattern and stencil Layout, for a SPC570S50E1 with the eTQFP64 package.Where can i find the information for the package?Thanks for the answers.

 Hello ST Team,I am currently working on a project using the ST25R3916B NFC reader, and I would like to study and reference the PCB design shown in Figure 6, “Device used for single ended antenna with cable,” of application note AN5592.Could you please provide the editable PCB project files for this reference design, such as the Altium schematic and PCB layout files?I have checked the application note and the ST website, but I could not find the corresponding PCB source files.Application note reference:https://www.st.com/resource/en/application_note/an5592-st25r-single-ended-antenna-matching-stmicroelectronics.pdfThank you very much for your support!

Hello,I wish to report what I believe to be a bug in the new version of CubeMX (6.18.0).When configuring an STM32H743IIT6, I encounter an error in the Clock Configuration view (please refer to the attached screenshot). The same procedure carried out with CubeMX 6.17.0 works correctly.I have therefore reverted to CubeMX 6.17.0, which is not a critical issue for me, but I thought it important to bring this to your attention.Yours faithfully,Philippe 

Hi everyone,I'm having trouble bringing up an STM32MP257F-DK Discovery kit (board reference MB1605C). ST-LINK itself works correctly, but I cannot get any communication with the main STM32MP257 processor, and the board never boots. I'd appreciate any insight into what else to check before assuming a hardware fault.Board / setup:STM32MP257F-DK, main board MB1605, revision C-01 Powered via USB-C into CN21 (USB PWR/STLINK) Using the original microSD card that shipped with the kit (preloaded OpenSTLinux demo image) Boot switches set to: BOOT0 = ON, BOOT1 = OFF, BOOT2 = OFF, BOOT3 = OFF (microSD boot)What works:LD11 / power LEDs indicate the board is powered Windows enumerates two "STMicroelectronics STLink Virtual COM Port" devices (COM8, COM9) without issues STM32CubeProgrammer detects the ST-LINK probe: Serial number, FW version V3J15M6B5S1, Board correctly identified as "STM32MP257F-DK", Target voltage reads consistently 3.28-3.29VWhat doesn't work:Connecting via SWD always fails with "

0x0BF97000 (system bootloader base per AN2606): the jump appears to succeed (In Debug reaches the bootloader region), but execution then breaks at an address inside the bootloader ROM with no further progress and no USB enumeration. The hardware boot path works correctly. The problem is purely on the software-jump path.I created an empty project in sample you can download and test it. I also attached my option bytes (i think everything is default).MCU: STM32H573 (also tested h523)/** ****************************************************************************** * @file dfu_jump.c * @author Uğur Tümer * @brief See dfu_jump.h. Implements the magic-word + soft-reset path into * the STM32H523 system bootloader (USB DFU on PA11/PA12). ****************************************************************************** */ #include "dfu_jump.h" /** Magic word stored in TAMP_BKP0R between the request and the next boot. */ #define DFU_JUMP_MAGIC 0xDEADB007UL #define BOOT

Hi there,I am frustrated while searching the web for an normally easy task - 😒I am not able to detect, where Boot0 pin is on STLink-v3MODS module Rev.B.Does anyone know?I also asked ChatGPT and Google, but this only results in false answers - bricking the device.Please hlep - Thanks a lot.STLink-v3MODS Rev.B - front STLink-v3MODS Rev.B - backST32CubeProgrammer v.2.2.3.0 

One Quick Observation , V2.23 takes so much time as compare to V2.22 ( windows 64 ) , for Reconnecting MCU & Throwing Error  after setting RDP2. approx 45 seconds by V2.23. while 5 seconds for V2.22 version.  

Dear STM32 Community,I am using the STM32H745ZIT3 microcontroller with STM32CubeIDE for firmware development.I am facing an issue related to GPIO behavior during a watchdog reset.When a warm reset is triggered by either the Independent Watchdog (IWDG) or the Window Watchdog (WWDG), all GPIOs are reset to their default state. In my application, I need certain GPIO outputs (such as relay control signals) to retain their previous state during a watchdog reset, or at least avoid changing state until the application reinitializes them.Could you please clarify the following?Is it possible to prevent GPIOs from resetting during an IWDG or WWDG reset on the STM32H745ZIT3? Are there any software techniques to retain the GPIO output state across a watchdog reset? If GPIO retention is not supported, what is the recommended approach to prevent unwanted output glitches during a watchdog reset?Any guidance, application notes, or recommended design practices would be greatly appreciated.Thank you for

Post edited by ST moderator for the code. Hi,I have a pre-production batch of about 80 STM32L051 custom boards.Under certain circumstances, the microcontroller goes into sleep mode and waits for an IRQ to restart.Of these 80 boards, about 10 randomly, after going into sleep mode, don't restart (until a reset).This is the code I use:__HAL_GPIO_EXTI_CLEAR_IT( VIB_SENS_MAIN_Pin);__HAL_GPIO_EXTI_CLEAR_IT( VIB_SENS_BACKUP_Pin);NVIC_EnableIRQ( EXTI4_15_IRQn);HAL_COMP_Stop_IT( &hcomp1);HAL_COMP_Stop_IT( &hcomp2);__disable_irq();__HAL_PWR_CLEAR_FLAG( PWR_FLAG_WU);__HAL_GPIO_EXTI_CLEAR_IT( VIB_SENS_MAIN_Pin);__HAL_GPIO_EXTI_CLEAR_IT( VIB_SENS_BACKUP_Pin);__HAL_COMP_COMP1_EXTI_CLEAR_FLAG();__HAL_COMP_COMP2_EXTI_CLEAR_FLAG();delay_us( 5);HAL_SuspendTick();HAL_PWR_EnterSTOPMode( PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);HAL_NVIC_SystemReset();What did I do wrong?Thanks for the suggestion. 

Hello everyone,I designed a board using the STM32MP157 and STPMIC1A. During the initial power-on tests, I noticed that there was no output from the VDD BUCK.The board was tested without any operating system or boot process. Is this normal? This is the first board I’ve designed with the STM32MP1, and if this is normal, I can proceed with porting the OS however, if it’s abnormal, I’ll need to investigate the source of the problem. The board was also successfully detected by the PC in USB boot mode. Regards

Hi,We designed a 24V to 5V DC-DC power supply using the LD1086DT50TR. However, we are experiencing an overheating issue. Our application load current is only 0.2–0.3 A, but the regulator temperature rises significantly. Could you please suggest a solution to resolve this overheating issue?

Hi all, Regarding EVKIOTST87M01-2. In the design guide is mentioned the High Speed Interface (HST), in the same guide specifies that this interface requires an external Hardware TPA device, named Dongle HST Logger to recover the data flow for ST Analysis. The questions are:Do you sale this Dongle HST Logger? Is the ST-Link compatible?or is the the data available through the STSW-ST87M GUI?Thanks in advance. Susana 

Hi, I am evaluating VL53L8CX and couldn’t find anything in the data sheet about a programmable FOV. I require a FOV of 2-3degrees. Does this sensor support a programmable FOV to that size?Thanks,BH