Mcuboot stm32. 6 cannot be compiled with mbed-os-6.

Mcuboot stm32 I am looking for stm32 echo system tools and libraries for the delta firmware update of the application firmware image updates . I have a programing script for our production which calls STM32_Programmer_CLI. Alike all STM32CubeN6 MCU Package , the STM32CubeN6 provides a set of utilities that offer miscellaneous software and additional system resources services that can be used by either the application or the different STM32Cube firmware intrinsic middleware and components. Browse STMicroelectronics Community. Reload to refresh your session. I use a STM32L412 on a custom board. Secure Boot. Table 2-1. ) able to verify downloaded image signature from unsecure app without access to secure keys which, of course, cannot be exposed to unsecure app" Where: N is the number of sectors in the primary slot. The code example is deliver in the Cube the only secure boot solution we provide on STM32U5 is based on MCUBoot. However, there are some limitations compared to larger devices. Included in the TFM_SBSFU_Boot project. MCUboot port for NuttX Secure boot for 32-bit Microcontrollers! View on GitHub MCUboot port for NuttX Description. STM32F0 minimal RTOS example doesn't work in STM32 MCUs Embedded software 2025-02-18 STM32 U545 - ADC DMA in STM32 MCUs Products 2025-02-16 Gfx 4. 由于项目需要，对zephyr和mcuboot进行了初步学习，并基于 stm32f429 （用的是正点原子的阿波罗开发板）进行了一些实操，对这个过程进行一下记录。 我这里是在 Windows Unlike every single board with a configuration in the provided zephyr mcuboot/boards, the STM32wl doesn’t have a built-in USB interface and can’t provide the drive interface upgrade — where it RT-OTA is a general-purpose bootloader for STM32 series microcontrollers officially launched by RT-Thread (commercial nature, source code is not disclosed), and RT MCUBoot is a configurable secure bootloader maintained by several industry leaders. To configure the what functions are called when allocating/deallocating memory Mbed TLS uses the following call: We would like to show you a description here but the site won’t allow us. RT-OTA是基于STM32的开源Bootloader框架。RT-OTA 是 RT-Thread 官方推出的 STM32 系列单片机的通用 bootloader（商用性质，不公开源码），而 RT-FOTA 可以理解为是 RT-OTA 项目的民间开源版。 RT-FOTA 主要的功能： 支持RTT官方的RBL打包软件，使用方式也一致。 Has anyone tried MCUBoot on STM32 MCUs? Mbed OS. Hi @suadsuljic7. The algorithm does one erase cycle on both the primary and secondary Follow the Getting Started Guide to set up your Zephyr development environment. The mcuboot can identify the image on the external NOR and jumps there for executing in Place. 18. For more information regarding flash partitions, visit Flash map. It has since acquired the ability to be used as a bootloader for Zephyr as well. Visual Studio Code . 1, C++20, warning: compound assignment with 'volatile'-qualified left operand is deprecated [-Wvolatile] in STM32 MCUs TouchGFX and GUI 2025-02-11 STM32 ISP IQTune: application for sensor image quality tuning. The STM32 flash driver is using semaphores, and looking at the code I see z_impl_k_sem_give actually calls z_reschedule. For MCUs with limited flash size like STM32U535xB, this leaves almost no space for the application. The Secure Boot implementation is based on IDF’s Secure Boot V2, is hardware-assisted and RSA based - except ESP32-C2 that uses ECDSA signing scheme - and has the role for ensuring that only authorized code will be executed on the device. Flash MCUboot to 2. 2 Utilities. The X-CUBE-SBSFU Secure Boot and Secure Firmware Update solution allows the update of the STM32 microcontroller built-in program with new firmware versions, adding new features and correcting potential issues. 6 cannot be compiled with mbed-os-6. STiRoT manages images at MCUBoot format including: a header, the encrypted firmware or data binary, some metadata information Issue 2: I have a design where I use an STM32 analog input, which is connected to an op-amp output. MCUboot is a secure bootloader for 32-bits microcontrollers. This signature is placed in the image trailer. Simple ISP preview. How to tune ISP using the STM32 ISP IQTune. [AN4992] STM32 MCUs secure firmware install (SFI) overview - Application note An STM32 evaluation board (we use the Nucleo-H503RB board) USB Type-C® cable to USB-A or USB Type-C® to USB Type-C® cable. There are bug fixes, and associated imgtool updates as well. •100s ok KiB of Flash, often 10s or 100s of KiB of SRAM. Would the same process work in STM32? I'm looking into the MCUBoot based examples provided by ST : SBSFU projects. Regarding your statement: "Secure TF-M app I need exactly to be (e. UpdateHub UpdateHub is a platform for remotely updating embedded devices. Horizontal interaction between the components of this layer is done by calling the featured APIs. We will be doing a multi-image build which means that the application will be compiled along with MCUBoot. 6. Two secure boot stages. Constrained devices •Usually boot and run from flash. 10, v2. MCUboot defines a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and In this article, we will explore the feature set of MCUboot and how it works. 17. The STM32Cube HAL is an STM32 embedded software layer that ensures maximized portability across the STM32 portfolio, while the LL APIs make up a fast, light-weight, expert-oriented layer, which is closer to the hardware than 由于项目需要，对zephyr和mcuboot进行了初步学习，并基于stm32f429（用的是正点原子的阿波罗开发板）进行了一些实操，对这个过程进行一下记录。 STM32是一款基于ARM Cortex-M内核的微控制器系列，由意法半导体（STMicroelectronics Depending on the TrustZone ® STM32 microcontroller, TF ‑M-based application available in the STM32Cube MCU Package may differ. Any suggestion related to delta firmware Update (DFU/FOTA) library or tools supported by Stm32u575 ? I am looking for the library/tools that works with the mcuboot bootloader from Zephyr. UM3249 运行大型嵌入式系统有uboot做引导，现在一款适用于MCU的MCUBoot也诞生了，实现一个 ,硬汉嵌入式论坛 硬汉有用过MCUBoot吗，最近准备用在STM32上，使用MDK开发。现在只通过文档了解了一下机制，感觉是不是不能通过MDK直接下载了？ Hello Techies, We are using STM32H743, we would like to run mcuboot on stm32h743, but we haven't find the example for stm32h7xx devices, Is there any. MCUboot began its life as the bootloader for Mynewt. When a new update is detected, the binary is downloaded and installed. For other images (including sysbuild), these are ran with a prefix of the image name and an underscore e. 0 release of MCUboot adds support for the PSOC6 platform, X25519 encrypted images, rollback protection, hardware keys, and a shared boot record to communicate boot attestation information to later boot stages. It activates the security mechanisms, and verifies the authenticity and the integrity of the code executed on the platform after the boot stage (Application). 000,000] <err> flash_stm32_qspi: SFDP magic 46465353 invalid Then, just for test, skipping the SFDP, the memory examination at external flash address 0x90000000 is read correctly after setting the external flash in MemMapped mode. So, if you want to have a working setup you shouldn't MCUboot is a secure bootloader for 32-bits microcontrollers. User flash: STM32 programs user Flash with decrypted application and option bytes. We will walk through step-by-step how to port it to a custom platform and test our port out on a Cortex-M based development board. 3 %âãÏÓ 1 0 obj >stream endstream endobj 2 0 obj > endobj 5 0 obj >/Subtype/Link/Type/Annot/Border[0 0 0]/Rect[74. This is why, SBSFU solution on STM32 based on Cortex-M33 are using this mcuboot based solution. External memory: if applicable (according to STM32 family), the STM32 receives encrypted OEM external application targeting external memory, effort, time, and cost. Its default behavior tries to “do what you mean”: If there is a Zephyr build directory named build in your current working directory, it is incrementally re-compiled. First, I go to the MCUboot folder, build and load the bootloader binary MCUboot boot will swap the images and boot the new application, showing this output to the console: *** Booting Zephyr OS build zephyr-v3. 9, v1. 76 98. There are many possible ways to access the System Bootloader in STM32 devices and, in this tutorial, we will cover how to easily perform this jump directly from application code for all our families and product For the main application (as is the same without using sysbuild) these can be ran normally without any prefix. STM32L5, STM32U5, STM32WBA. Horizontal interactions between the components of this layer are done by calling the feature APIs, while the vertical interaction with the low-layer drivers happens through specific callbacks This stm32-mw-openbl MCU component repository is one element common to all STM32Cube MCU packages, providing the Open Bootloader MCU Middleware part. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Email to a Friend; Report Inappropriate Content ‎2023-09-12 10:03 AM - edited ‎2023-09-12 10:08 AM. It specifies a vendor and device independent way of updating the firmware of a USB device. Few steps to complete : have the flash_stm32_qspi supporting dual flash mode (for stm32h7 board with dual-qspi flash memories) tools as the STM32 system bootloader. API Reference MCUboot image control API Bootloaders MCUboot Zephyr is directly compatible with the open source, cross-RTOS MCUboot boot loader. Configuration Fields for the MCU bootloader (continued) Offset Size (bytes) Configuration Field Description 0x04 - 0x07 4 crcStartAddress Start address for application image Bootloader: mcuboot. Role of the iRoT (STiRoT or OEMiRoT): The iRoT ensures the secure installation of the uRoT through verification of the integrity and authenticity of the uRoT firmware. For more details please contactZoomin. Open Bootloader is provided as example code that can be used to build a customized bootloader. Signature is computed by newt tool when it’s creating the image. Porting mcuboot to stm32 image unset? suads. An important effort was done to make this mcuboot porting robust to be able to address PSA Level 3 and SESIP Level 3 certifications. 4, v1. The example is a porting on STM32U5, and mcuboot middleware is adapted to support more configuration use cases. Release note. They can be enabled putting BT_SEL (PI8) pin HIGH if available or calling MCUboot::bootDebug(1); in your Sketch. 0. I have no idea how that works when multi-threading is disabled (if it does at all). For the STM32L5, STM32U5 and STM32WBA5 series, examples of the SBSFU by MCUboot application are Depending on the STM32 series, different hardware mechanisms can be configured to implement the security strategy such as: HDP, WRP, Tampers, Security option bytes, OB keys, Life cycle, MPU, TrusteZone, SAU, GTZC. •32-bit microcontrollers. As nrf provides a 2nd stage secure bootloader mechanism in order to upgrade the mcuboot bootloader. The mcuboot is always running in the internal flash memory of the stm32 mcu. The storage_partition node is defined for use by a file system or other nonvolatile storage API. hex -v -ob SRAM2_PE=0 SR I am not a Zephyr developer, but MCUBoot runs without CONFIG_MULTITHREADING. There is no need to compile MCUBoot separately in NCS. If enabled, serial mode can be triggered during bootup via user input, such as a button hold. OpenBLT - Open source bootloader for STM32, XMC, HCS12 and other microcontroller targets. 2. 42]>> endobj 4 0 obj The on-board STM32F429ZI MCU has 2MBs of internal flash memory. exe for downloading a hex file and also some parameters to program the option bytes: STM32_Programmer_CLI. It supports communication interfaces such as: RS232, CAN, USB, TCP/IP and it ships with the easy-to-use MicroBoot PC tool for initiating and monitoring the firmware update. MCUMGR interface enables users to retrieve image diagnostics from the board, query resets, upload/modify images, and more. 76 88. This implementation replaces the SBSFU legacy implementation no more deployed on the latest STM32 series. The Secure MCUBoot 演示介绍了如何使用 FreeRTOS 进行固件更新和引导加载器的实现。 It is fully compatible with the STM32 System Bootloader and supports the same communication interfaces and commands and can also be used with the STM32CubeProgrammer. That pin also happens to be SPI_MISO of one of the possible bootloader SPI interfaces. Performing firmware updates . Other Sites. The update process is performed in a secure way to prevent unauthorized updates and access to confidential on-device data. If Mbed TLS is to be used for crypto, your target RTOS needs to provide this pair of function. ) It relies on cryptography hardware Add stm32 watchdog support; The 1. This guide describes the process of setting up VS Code for Zephyr’s Blinky sample in VS Code. Make sure that the board you would like to use have flash partitions defined in Device Tree. Introduction. I can upgrade application firmware however, as soon as I change the size of the image slots the MCUBOOT bootloader on stm32 chips mcuboot does not upgrade the image after the download is complete and complains. STM32Cube includes: • A set of user-friendly software development tools to cover project development from conception to realization, among RTOS, TF‑M, MCUboot, and mbed-crypto. sysbuild_ or mcuboot_, using ninja or make - for details on how to run image build targets that do not have mapped build targets in sysbuild, see the Dedicated The MCU bootloader is a configurable flash programming utility that operates over a serial connection on supported NXP MCUs. Mbed TLS employs dynamic allocation of memory, making use of the pair calloc/free. Updates can be [00:00:00. Visual Studio Code (VS Code for short) is a popular cross-platform IDE that supports C projects and has a rich set of extensions. Powered by Zoomin Software. For this case, it means that the bootloader will use the current image as the main application. The NuttX port of MCUboot secure boot library expects that the platform provides a Flash storage with the following partitions: 前言6 r" u- S: Q$ p( [5 p$ U STM32 X-CUBE-SBSFU 软件包已经发布，提供了安全启动(Secure Boot)和安全固件更新(Secure Firmware Update)功能。安全启动和安全固件更新使用了 STM32 内建的各种软硬件安全技术，构建了从启动开始的根信任链，可以用来防止固件克隆、恶意软件下载以及固件破坏。 本program对NXP官方 MCUBOOT进行了大幅简化，砍掉了绝大部分功能，只保留串口下载功能，同时由于保持协议兼容，可以配合官方Win下的命令行工具blhost 或者 GUI工具Kinetis Flash Tool 来实现一个基于MCU串口的bootloader，这套代码基于纯C代码，非常容易移植到任何NXP MCU平台上来，有如下两个特色 Secure boot for 32-bit Microcontrollers! Contribute to mcu-tools/mcuboot development by creating an account on GitHub. There is a Eclipse hawkBit Direct Device Integration API sample included in the Zephyr Management section. 3. Right now, the code only erase the first a few sectors of the STM32 flash. It defines a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and provides a secure bootloader that enables easy software upgrade. There are some pretty significant differences in how apps are built for After a STM32 reset, Secure Boot is the first firmware that is running on the device. (image attached) Then the mcuboot fallback to the primary slot image after reset. 0 no longer works with path names containing a space in STM32CubeProgrammer (MCUs) 2025-01-21; STM32WL5MOC bootloader mode in STM32 MCUs Wireless 2025-01-20; MCUBoot size in STM32 MCUs Security 2025-01-13 Hello World for multiple board targets using Sysbuild Run a hello world sample on multiple board targets; MCUboot with sysbuild Build a Zephyr application + MCUboot using sysbuild. The instructions have been tested on Linux, but the steps should be the same for macOS and Windows, just make sure to adjust the paths The build command helps you build Zephyr applications from source. ” •Secure bootloader: includes signed root of trust, and secure upgrades. Refer to the user manual of the TFM application (complete implementation of TF‑M) of the considered Arm® TrustZone® STM32 microcontroller (see Section 2 References ) to get a precise description of the solution. - bytefull/mcuboot Hi all, do anyone has a working example, or had experience of compiling MCUboot for Zephyr on PlatformIO? There’s was a user who tried to do the same thing but gave up. It allows for downloading the application program to the internal user Integrating MCUboot into a project in STM32 MCUs Embedded software 2025-01-27; STM32H563 I2C Stuck Busy in STM32 MCUs Products 2025-01-16; Zephyr MCUboot for stm32f446re in STM32 MCUs Embedded software 2025-01-11; Nucleo-H563 Getting Started Fails in STM32CubeIDE (MCUs) 2024-12-03; The Read Data is always "0" in STM32H5 MCU in Integrating MCUboot into a project in STM32 MCUs Embedded software 2025-01-27; STM32CubeProgrammer 2. CLI Command-line interface. image-trailer-sectors-size is the size of the image trailer rounded up to the total size of sectors its occupied. Comprehensive STM32H7Rx/7Sx-dedicated middleware offer including USB Host and Device supporting many classes, TCP/IP, Ethernet, USB power delivery, OpenBootloader, and MCUboot ; New STM32_ExtMem_Manager and STM32_ExtMem_Loader middleware, providing software implementation that facilitates external memory integration MCUboot is an OS- and HW-independent secure bootloader for 32-bit MCUs aiming at defining a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and at p MCUboot: Overview “MCUboot is a secure bootloader for 32-bit microcontrollers. It checks STM32 static protections, activates STM32 runtime protections, and then verifies the authenticity and integrity of user application code before every execution to make sure that invalid or malicious code cannot be run. X-SBSFU package doesn't support the Cortex M33 based STM32 ( STM32L5/U5/H5) For those one ST decided to go with MCU Boot. 1 89. STiRoT: SESIP A wio-e5-mini and enclosure. 0-360-gc0dd594d4d3d *** I: Starting bootloader I: Primary image: magic=good, swap_type=0x3, copy_done=0x1, mcuboot - Secure boot for 32-bit Microcontrollers. You can use west config to configure its behavior. 4 profiles, services, and stack, certified with Bluetooth ® SIG %PDF-1. 3 %âãÏÓ 1 0 obj >stream endstream endobj 2 0 obj >/Contents[3 0 R]/BleedBox[0 0 595. The IAP may fail even if they both connect to the same PC via USB. You signed in with another tab or window. 0, v2. mcuboot Secure boot for 32-bit Microcontrollers! View on GitHub Image signing. The idea is to have only one vendor-independent firmware update tool as part of the operating system, which can then (given a particular The TF-M uses mcuboot as secure boot solution (also called bl2 in the framework). Secure Firmware Install (SFI) uses the STM32 Trusted Package Creator tool and a HSM (hardware secure machine) to encrypt the install package, authenticate the genuine STM32 device for installation and limit the This wiki page depicts the SBSFU by MCUboot, which is an open-source implementation of the secure boot and secure firmware update feature. %PDF-1. FAQs Sign In. •Think Cortex-M, although not particular MCUboot is an OS- and HW-independent secure bootloader for 32-bit MCUs aiming at defining a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and at p Creating a MCUBoot-compatible application. STM32Cube covers the whole STM32 portfolio. The secure boot solution we support for STM32 using ARM Cortex-M33 is based on mcuboot. You signed out in another tab or window. g. CTR Counter mode, a cryptographic mode of operation for block ciphers. But still having issues when swaping the slots to load the second image. MCUboot v1. For instance if the image-trailer-size is equal to 1056 B and the sector size is equal to 1024 B, then image-trailer-sectors-size will be equal to 2048 B. E: Image in the secondary slot is not valid!. The GND of master device and STM32 slave device is suggested to be directly connected. To use MCUboot, define a Zephyr partition table for the flash memory in its devicetree file nucleo_f429zi. Unlike every single board with a configuration in the provided zephyr mcuboot/boards, the STM32wl doesn’t have a built-in USB interface and can’t provide the drive Depending on the TrustZone ® STM32 microcontroller, TF ‑M-based application available in the STM32Cube MCU Package may differ. See the MCUboot documentation for more details. I am looking for the zephyr's mcuboot bootloader upgrade support in STM32u5 toolchain via FOTA(Firmware Update Over the Air). MCUBoot API The MCUboot API is provided to get version information and boot status of application images. Details about the content of this release are available in Introduction USB Device Firmware Upgrade (DFU) is an official USB device class specification of the USB Implementers Forum. The core function of this application relies on the mcuboot middleware and the mbed-crypto middleware (which is the same as Mbed TLS, see this GitHub link for more information. The same is true if you run west build from a Zephyr build directory. In the The boot_partition, slot0_partition, slot1_partition, and scratch_partition node labels are defined for MCUboot, though not all MCUboot configurations require all of them to be defined. For two secure boot stages first the iRoT is executed followed by the uRoT. 1) will ignore the firmware image stored in secondardy slot. 88977]/Type/Page/Resources >/XObject >>>/Annots 10 0 R MCUboot is an OS- and HW-independent secure bootloader for 32-bit MCUs aiming at defining a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and at providing a secure bootloader that enables simple software upgrades. 000,000] <inf> flash_stm32_qspi: Reading SFDP [00:00:00. Associate III Options. This is something different from X-CUBE-SBSFU package. MCUBoot is a secure bootloader for FreeRTOS that ensures the integrity and authenticity of firmware updates. ini Dependency Graph |-- <flash_map_backend> |-- <hal> |-- STM32WBA series middleware: STMTouch (STM32 touch sensing library) and Azure ® RTOS kernel, OpenBootloader, mbedTLS, TFM, MCUboot ; STM32WBA-specific middleware: STM32_WPAN, including Bluetooth ® Low Energy 5. If signing a Zephyr image, the --pad-header is not needed, as it already have the padding for MCUboot header. This signs the image by computing hash over the image, and then signing that hash. • MCUboot. Reply STM32 nucleof429zi is the board and we are using zephyr west to build mcu boot in command prompt and we are running the code from zephyr project and when ever we flash mcu boot code it wont flash but if we flash application code it is going to flash could you give example or could you suggest any other way to print hello world using mcu MCUboot ). . After some investigations, I noticed that the SBSFU_Boot memory footprint was ~80ko and the SBSFU_Loader one was 24ko. MCUboot operations: slot verify, copy, erase or swap the board LED will blink in violet (red+blue). We provide the integration of MCUBoot MCUBoot also provides subset support for mcumgr when a device enters serial boot recovery mode. 24. 1 can be compiled, boot_set_pending() seems able to run without error, but upon system reboot, bootloader (mcuboot v2. Are there any instructions on how to use the stm32-mw-mcuboot package? 0 Kudos Reply. com DevAcademy DevZone I have been unsuccessfully trying to load a binary file to my BlackPill (STM32F401CCUx) without erasing the MCUboot bootloader. As a reference, a partition table for MCUBoot is already defined in the devicetree file, with these settings: MCUBoot bootloader partition takes 64K bytes. Currently I’m trying to do the same but unable to compile, likely due to wrong lib dependency configuration in platformio. 27563 841. Product forums. You switched accounts on another tab or window. SBSFU by mcuboot: implementation relying on the mcuboot open source solution. MCUboot can be used to verify the signature before upgrading the firmware. But a MPU fault occurs : Bootloader: mcuboot. OEMiRoT is an example based on the MCUboot open-source software (refer to mcuboot) provided with STM32CubeH5. ISP - Application examples. So the second slot should be copied to the primary slot at address 0x801000? Name of boot stage in TF‑M terminology, based on the MCUboot open-source software. The Secure Firmware Update application receives the firmware image via a UART interface with the Ymodem protocol. It interfaces with MCUboot is an OS- and HW-independent secure bootloader for 32-bit MCUs aiming at defining a common infrastructure for the bootloader and the system flash layout on microcontroller systems, and at p BringUp of zephyr RTOR on stm32 device. It allows to select application image and boot type for the next boot. SBSFU by MCUboot can also be used on STM32H503 product lines. The swap type above is at none mode. It can operate as the first or second stage bootloader, with support for cryptographic verification of Building and using MCUboot with Zephyr Secure boot for 32-bit Microcontrollers! View on GitHub Building and using MCUboot with Zephyr. ISP - How to. 5 and v1. Secure boot for 32-bit Microcontrollers! Memory management for Mbed TLS. exe -c port=SWD freq=24000 mode=PowerDown -d example. OEMiRoT offers two services: Improving Download Speed in STM32 MCUs TouchGFX and GUI 2025-02-15; I2C Slave device implementation ACK/NACK problem in STM32 MCUs Products 2025-02-14; Touch operation not working on custom pcb using stm32u5a9 in STM32 MCUs TouchGFX and GUI 2025-02-13; Issue Integrating FreeRTOS with Secure Manager on STM32H5 in STM32 MCUs Security 2025-02-13 Espressif is a global high-tech leader in wireless communication, IoT, AI SoCs, software, and solutions, for a smarter and greener future. All are integrated and customized for STM32 MCU devices and enriched with application examples based on STM32 evaluation boards. AN2606 says that SPI_MISO during boot mode selection is an output, which in my case would imply that the SPI_MISO pin is driving out into my op-amp output. MCUboot idle: The board green LED will fade-in fade-out; Serial; MCUboot debug prints are disabled by default. Nordicsemi. dts. T. It enables quick and easy programming through the entire product lifecycle -- from application development to final product manufacturing and beyond -- for updating applications in the field with confidence. The Nucleo-H503 uses USB Type-C®, however, your specific sample board might be using a Micro or Mini USB port; TTL to USB translator (for connecting UART Rx/Tx to PC for serial terminal access). bmweeye ycyj ysgoqi hoy cnkz aar ypgyh lxdf ezxtmf ctf tvqu eswlrdgsj reedhp wkwpm aokuj