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Hello.With a STM32H563, i can change the product state to 0x17 (provisoring), reconnect with HotPlug,start provisoring with my OBK-File and change the production state to closed (0x72) without any problems.I don't use TrustZone.A full regression after this with STMCubeProgrammer and the password.bin file is possible without problems. I use the explanation from the knowledge base here: https://community.st.com/t5/stm32-mcus/how-to-enable-rdp-like-product-state-flash-protection-in-stm32h5/ta-p/708082 If I try the same thing with an STM32H533 and with the same OBK file i used on the STM32H563 ( <DoEncryption>0</DoEncryption> in XML-File : just as stated in the knowledge base for all STM32H5, because the STM32H533 has crypto), i can do the provisoring, can change product state to closed.But after this a full regression is not more possible.Testet with 2 eval boards and with STMCubeProgrammer V2.18 and STMCubeProgrammer V2.19 If i read out the OBK-K

Dear All,How to purchase a 34-pin cable assembly and radiator (especially heatsink) for the STEVAL IPM30B, what are their specifications, and are there existing products available? 

There is a new Digital Power software expansion pack for STM32Cube, X-CUBE-DPOWER.https://www.st.com/en/embedded-software/x-cube-dpower.html.Does anyone know if the default code generated will immediately work on STEVAL-ISA172V2?https://www.st.com/en/evaluation-tools/steval-isa172v2.html

Hi,We are currently utilizing a custom-designed STM32U5G7 microcontroller for our application with the MSI clock configured to 1 MHz. Despite configuring the device in Sleep and Stop modes, with all GPIO pins set to input and one pin configured as an EXTI interrupt for wake-up, we are observing a current draw of approximately 2mA. Our goal is to reduce the current consumption to the micro ampere range. Could you provide guidance on further optimizing power management and implementing lower-power modes?I have attached the code ,pin out configuration and current drawn  measured using Otii./* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2025 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in

Hello all,I discovered that selecting in STM32CubeIDE under Pinout & Configuration/Middleware and Software Packs/ X-CUBE-NFC4 the source folder Middleware/ST/lib_nfc is added to the project source tree, containing the source files for the lib_nfc library.However, while the support fot NFC Type 5 appears complete, the support for Type 4 is not.Are there plans to complete the support?Thanks,Adriano  

We use a STM32H743 and I want to connect an external reference voltage to the Vref pins. We use 3 ADCs, and for each ADC, we sample 4 channels. Each channel must be read at 100 ksample/s. The 3 ADCs operate continuously. A common ADC clock of 10 MHz clock is used. The resolution used is 16 bits for each channel. I have the following questions:1) What is the average current drawn from the Vref pin for all 3 ADCs during conversion?2) What is the Radc value?3) The SAR ADC has internal capacitors that are charged/discharged from/to a reference voltage in a very short time during successive approximations. The voltage reference including an external buffer capacitor on the Vref pin must be capable to deliver energy in a short time without changing the Vref voltage. I read that there are buffered and unbuffered voltage references. I'm intended to use a REF3433 and an external capacitor of 10uF. The REF3433 is an unbuffered reference source. Is this type recommended for the STM32H743. Pl

Hi, I am pretty new to STM32 MCUs and I am having trouble with USART communication. I would like to send a message from Nucleo-F401RE to raspberry pi 3b+, and then to display that message in terminal on raspberry. I have tried to use USART2 for this but it didn't work, then i read that USART2 is used when i connect Nucleo to the laptop so i changed the code to use USART1 and it still doesn't work. I have tested the USART2 with the advanced serial monitor on the laptop and it works properly. Bellow are the functions in main.c and uart.c that i am currently using This is the function uart.c, for some reason i couldn't post it as the attachment: #include "moduli/uart.h" #include "stm32f401xe.h" #define BUFFER_SIZE 64 static uint8_t ring_buffer[BUFFER_SIZE]; static uint8_t rb_write; static uint8_t rb_read; void uart1_init() { /* * PA9 --> USART1 TX (AF7) * PA10 --> USART1 RX (AF7) */ RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN; RCC->APB2ENR |= RCC_APB2ENR_USART1EN; // Init

Hello all..I have a proprietary pcb with the above mcu.  Board works fine.  I am using BLE but with NO bells and whistles (no encryption, authenication or authorizations.  I decided I wanted to play around with these things so I have been following the MOOC videos on security.  In the following video at 3:12MOOC Pairing video the presenter shows that a pairing window pops up on the screen.  I have done exactly what he has done in short the only change I make is to change a NO to a YES on one of the characteristic permissions for ENCRYPTION READ.  When I try and access this my phone applications (I've tried nRFConnect and ST BLE Toolbox) disconnects and I do NOT get any pairing message.  Other characteristics seem to work fine.  Can anyone tell me what I may have wrong here?  I am using a power supply so no current limit issues and the parameter can be read fine when I turn YES back to NO.ThanksSteve

Hello, I have a problem with setting up PWM on the general purpose timer. I tried setting PWM on timers 2 and 3 using different channels, but I didn't see a PWM signal at the output. I also tried setting up PWM from timer 1 and it worked, but I only need PWM from timer 3. I am using STM8L151K4. I attach the code below.#define F_CPU 16000000UL // 16 MHz#include "stm8l15x.h"void CLK_Setup(void);void GPIO_Setup(void);main(){// Setup    CLK_Setup();    GPIO_Setup();    TIM1_Setup();    PWM_Setup();        // mainloop    while (1){            }}void GPIO_Setup(void){    // Deinitialize all ports registers    GPIO_DeInit(GPIOA);    GPIO_DeInit(GPIOB);    GPIO_DeInit(GPIOC);    GPIO_DeInit(GPIOD);        // Init output pins    GPIO_Init(GPIOD, GPIO_Pin_4, GPIO_Mode_Out_PP_Low_Fast); // timer 1 channel 2   

Just joined the community! I'm pretty new to electronics and am still learning the ropes. I'm currently tinkering with a small project involving LEDs and resistors.I'm really excited to learn from all of you and hopefully contribute more as I gain experience. Any tips for a newbie just starting out in the world of electronic components? What are some good resources or topics I should focus on early on?Looking forward to being part of this community!

Hi, I wrote a standard (DFT)Discreate fourier transform code (code is not the issue), in NUCLEO-F207 board using zephyr RTOS. I build the same program for NUCLEO-F767 board and flashed. The time taken to execute DFT code in NUCLEO-F207 was 8700 micro seconds. The time taken to execute the same code in NUCLEO-F767 is 65000 micro seconds. FPU(Floating point unit) is enabled for NUCELO-F767 board  Hardware and softwares are completely same for both the boards How is it happening what is the potential cause ?

Can I do CANFD communication using external CAN controllers(ex:MCP2517FD)?This MCP2517FD controller works with SPI.Microcontroller I'm using: STM32F413VGT3

 So first of all I'm working on creating a yocto image for this board.https://www.seeedstudio.com/Odyssey-MP135D-eMMC-p-5728.htmlMy end goal is to create a meta-layer with an easy to follow yocto quick start guide for this board similar to the one Seeed Studio has for the stm32mp157 variant of their dev board here:https://github.com/Seeed-Studio/meta-st-odyssey/tree/masterI'm not associated with Seeed studio, I'm just doing it because it relates to one of my current projects and think something like this would make this board more useful and approachable.I started by following this guide to get my yocto environment set up to use st's latest branch (mickledore).https://wiki.st.com/stm32mpu/wiki/STM32MP1_Distribution_PackageNext I patched the linux-stm32mp, optee-os-stm32mp, tf-a-stm32mp, and u-boot-stm32mp recipes to contain Seeed studio's device trees for the board located here.https://github.com/Seeed-Studio/stm32mp1-manifestThere were various issues to work out getting arm trust

Hey folks,I've seen many posts from frustrated users of USB OTG HAL, especially when enabling DMA. I created a fix for data toggle errors (DTERR) when using DMA with USB_OTG_HS HCD paired with full speed embedded PHY on a STM32F4xx.  Hopefully this fixes more than just F4xx.The latest stm32f4xx_hal_hcd.c generated by CubeMX fixes a great deal from the previous HAL code, but still has a bug that causes data toggle errors when using DMA.The interrupt service routine HCD_HC_IN_IRQHandler() handles XFRC interrupts with the following toggling logic:  if (hhcd->Init.dma_enable == 1U) { if ((((hhcd->hc[chnum].xfer_count + hhcd->hc[chnum].max_packet - 1U) / hhcd->hc[chnum].max_packet) & 1U) != 0U) { hhcd->hc[chnum].toggle_in ^= 1U; } } else { hhcd->hc[chnum].toggle_in ^= 1U; } Changing it to this fixed my woes: if (hhcd->Init.dma_enable == 1U) { // Toggle if packet count is odd or xfer_count is an even multiple of max_packet uint32

Greetings!After updating to the latest v5 of NEAI yesterday, benchmarks have failed to cross the initial step of loading in the first library. I suspect this has to do with the number of cores/ threads and memory being allocated to the NEAI process, as the 3221225773 and 3221225794 pwsh codes are dumped in the logs. For reference, my system has a Ryzen 7 4800H and 16 GB of RAM onboard, which hasn't had an issue with running benchmarks in previous versions. Updating to the new 5.0.1 version released earlier today hasn't fixed the issues either. I've attached my logs below.

Hi!I've read the documentation on the ST25TV RF tags here,I'm trying to implement an authentication process which I can use to validate the RFID I'm reading is not a duplicate RF tag.I'm not interesting if the RF tag is a counterfeit tag, meaning that it was manufactured by a counterfeit manufacturer, but am interested in knowing if this tag is indeed one of 'my RFID tags', and not a clone.I assumed I could do this by getting a key from of the RF tags in my system somewhere in my deployment process, then issuing a challenge to the tag when I read it, and having the tag create a signature of the challenge. Only the tag holding the correct private key would be able to correctly sign the challenge and so I would know it is not a clone of my tag.reading the documentation, I don't get the sense this is what the authentication of the ST25TV tags is meant for. Am I misunderstanding something?Thanks in advance!

HelloIs it possible to connect an external memory IC to the stspin via qspi or spi interface and map the addresses into the addressable space of the cpu?

helloI've been trying to use the LSM6DSV on it's steval-mki239a board with a nucleo board (nucleo-l476rg) via SPI and the lsm6dsv is not answering whatever the configuration of my SPI is.The sensor is fine since it work with the steval-mki109v3 board ans the MEMS studioI checked the SPI signal on the steval mki109v3 with a logical analyzer and found several odd things but the sensor is answeringI don't know if it is my analyzer but the MISO line is always stuck at 1 and the level of MOSI are strange but the sensor understand the message and answer with the right value (WHO_AM_I register:  MOSI should send 0x0F and MISO answer 0x70)On the other end I tried to recreate the same configuration on my nucleo board but the sensor doesn't answer any commandI tried:full duplex master CPOL=1 CPHA=1with external pull up on MISOfull duplex master CPOL=1 CPHA=0with external pull up on MISOI tried in master half duplexwith external pull up on MISOI tried master half duplex with CPHA =0 (1 edge)

Hello ST Community,I am looking for an STM32F4 series microcontroller that meets the following requirements::small_blue_diamond: Microcontroller Requirements::white_heavy_check_mark: More than 2 UART ports:white_heavy_check_mark: Quad SPI support:white_heavy_check_mark: Operating frequency: 100-120 MHz:white_heavy_check_mark: Preferred package: TQFP/LQFP, but open to other suggestionsSince this MCU will be used in an embedded system, power efficiency and peripheral availability are key considerations.

Hello,CFG_BONDING_MODE and CFG_FIXED_PIN are not correctly generated and CFG_FIXED_PIN is updated only when IO capability is changed: and this is content of app_conf.h:CFG_BONDING_MODE and CFG_USED_FIXED_PIN are always set to 1.Best regards

I am trying to configure a STM32H7B0 within STM32CubeIDE to use the SAI peripheral.  When I select any SAI, my cursor turns into the spinning blue circle indicating it is busy/working while not showing the configuration screen.  I select any other peripheral and the configuration screen is shown.  After waiting > 8 Hrs for the system to respond (I tried right before leaving for the day) the GUI has still not responded and is not showing the configuration information for the SAI preventing me from fully configuring the peripheral and generating my code.  This happens in both the IDE and in the CubeMX standalone.  I am running the latest versions of both software and my H7 package is up to date.I am looking for additional troubleshooting steps or potential work arounds.  Any help would be greatly appreciated.

Hello All, I am currently working on a project where we are using the ST33HTPH2032AHD1 TPM. This TPM is connected to our System on Chip (SoC) via the SPI interface. As I am relatively new to TPMs, I am seeking assistance in testing the TPM functionality from the SoC using SPI. Specifically, I am looking to do this using a standalone application. Here are some details about my setup: TPM Model: ST33HTPH2032AHD1 Connection: SPI Interface I would greatly appreciate it if anyone could provide guidance or share any relevant resources that could assist me in this process. Any sample code, documentation, or step-by-step guides would be extremely helpful. Thank you in advance for your time and support.

I am trying a simple example code for running the server in stm32f407, I have used LAN 8720. The connection are as follows:PA1 -----nINT/RETCLKPA2-----MDIOPA7-----CRSPB11----TX_ENPB12---TX0PB13---TX1PC1----MDCPC4----RX0PC5----RX1 my settings in the cube ide are:RCC--> HSE:crystal/ceramic ResonatorSYS---> Debug: trace asynchronous SWCONNECTIVITY----> ETH: RMIIMIDDLEWARE---> LWIP setting:My  clock configuration settings: my main.c is attached below. I am not able to figure out the problem. I am pinging the IP and it is not responding, the page is showing error "server not responding" 

Hi, I have look Extensively THREE different times now to find an assembler reference.  NOT the instruction set, the assembler directives.  Data types declared, conditional assembly (if avail), Everything the Assembler uses to generate machine code. IF there IS one, ST hid it Very Well!  Very frustrating!  TNX  <<<)))

Hi,  I am triyng to develop custom bootloader. My application address is 0x08180000 and bootloader address is 0x08000000. I can start with the bootloader and jump to the application successfully.  while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ HAL_UART_Transmit(&huart1, (uint8_t *)"HELLO", strlen("HELLO"), HAL_MAX_DELAY); HAL_Delay(1000); }The application send "HELLO" message over UART. but when I set MPU configurations I cant see the message coming from application. Here is my MPU configuration.void MPU_Config(void) { MPU_Region_InitTypeDef MPU_InitStruct = {0}; /* Disables the MPU */ HAL_MPU_Disable(); /** Initializes and configures the Region and the memory to be protected */ MPU_InitStruct.Enable = MPU_REGION_ENABLE; MPU_InitStruct.Number = MPU_REGION_NUMBER0; MPU_InitStruct.BaseAddress = 0x08000000; MPU_InitStruct.Size = MPU_REGION_SIZE_1MB; MPU_InitStruct.SubRegionDisable = 0x0; MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0; MPU_