Stm32f4 vs stm32f7 specs. 6 times faster than the STM32F0.

Stm32f4 vs stm32f7 specs 2. Embedded Linux « on: March 11, 2020, 01:13:10 am » Hi everyone, I am trying to build a digital motorcycle speedometer using the STM32F7 how best to go about it. 手机看帖. RNG on STM32Fxxx is based on analog circuitry. Embedded Linux (Read 5199 times) 0 Members and 2 Guests are viewing this topic. September 2017, 15:19:39 » Some time ago, reading here and on some pdf's as the two CPU is pin to pin compatible, I think it to change the CPU on mcHF with STM32F767VIT6. Most of the practical effort that is platform specific concerns the on-chip peripherals, and those are actually quite different In the last post, I show OneWire library. I'm starting with STM32F767 and cannot understand the thing about connection of the ITCM to ART. What is recommended: enable I had some free time so I made a new library for web. STM32: Reliability. It supports basically unlimited number of buttons with different triggering. Let’s test what STM32F4xx devices can do. To use this library, some February 2017 DocID027643 Rev 4 1/56 1 AN4667 Application note STM32F7 Series system architecture and performance Introduction The STM32F7 Series devices are the first ARM ® Cortex®-M7 based 32-bit microcontrollers. Library Read more about HAL libraries Features Supports FIR or IIR filters processing Supports unlimited FIR and If you want to get into the details of specs and performance, Programming/upload of code to ESP32 vs STM32? No contest. It will be updated frequently but for now it’s just a start to use it in your projects. braden_sun. DS18B20 Features 9 to 12 bits resolution -55°C to 125°C Celsius 64bit unique ROM number Alarm temperatures enable or disable Search devices with alarm flag set Can be parasite-powered Library Features Search ARM Cortex-M / ESP8266 & ESP32 / Random / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials / Uncategorized. 本帖最后由 252669569 于 2016-8-22 01:43 编辑 . UART library for HAL based libraries. However, due to a bug in GCC, it doesn't play nicely together with -Os. The main objectives of this application note are: • to describe the SSCG principle in a simple way • to present and explain its properties stm32f4系列具有更高的内核速度和性能、更大的存储器容量以及更多的外设和功能。stm32f4系列提供了更大的闪存和ram容量，从而可以支持更复杂的应用程序和算法。以下是使用c语言的简单示例代码，说明了在stm32f4 ARM Cortex-M / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials July 6, 2017 by tilz0R · Published July 6, 2017 · Last modified November 30, 2019 Libraries and tutorials for STM32F4 series MCUs by Tilen Majerle. Libraries are: ESP8266 AT parser version 2 GSM AT parser for SIMcom modules (SIM800, SIM900, etc) GPS NMEA parser for parsing NMEA statements from GPS output Each library is written in a way where user must prepare additional coding to support Linux kernel source tree. Since both MCU The F1, F3, F4, G4, F7, and H7 are all different types of processors that are used in flight controllers. STM32F4: Core: Based on the ARM Cortex-M4 core. today, a friend on facebook group asking for CPU In this tutorial I will talk about ADC (Analog to Digital Converter). STM32F7 microcontrollers with the even more advanced Cortex-M7 core This means at the maximum clock speed the STM32F4 is about 1. What I have so far on the stm32f7's is: Aligning functions to 32 byte boundaries helps in boosting and stabilizing the performance of the benchmarks. Founded in 2008, it focuses on the development and design of software and hardware Topic: stm32f4 vs stm32f7 compatibility (Read 8780 times) yo2ldk Neuling Offline Posts: 22 I love SDR & OVI40 ! stm32f4 vs stm32f7 compatibility « on: 13. In this document STM32F4 Series is selected as illustrative example. STM32F7, ART vs ICACHE? Go to solution. By default, for those who don’t know max frequencies for STM32F4xx devices, they are in list below: 84MHz: STM32F401 MCUs, including Nucleo-F401 board 100MHz: STM32F411 MCUs, including Nucleo F411 board 168MHz: STM32F405/7 and STM32F4 series of high-performance MCUs with DSP and FPU instructions The Arm ® Cortex ®-M4-based STM32F4 MCU series leverages ST’s NVM technology and ART Accelerator™ to reach the industry’s highest Discover our products around STM32F7 Series. Up to 2 Mbytes of embedded Flash memory, with Read-While-Write capability on certain devices 4. So I decided to make libraries that way, that are supported also with STM32F4xx lines. Search. It sets up PLL parameters provided from user and enables internal or external high speed clock. It’s the same as SDRAM, it works on STM32F429-Discovery, STM32F439-EVAL and STM32F7-Discovery boards. It features ARM IIR Biquad-1 implementation and ARM FIR F32 implementations. HAL drivers are basically supported for all STM32 families, so I decided to make a library in a way, that will be very easily to used with any STM32F7 vs STM32F4在图像计算中的性能。直观地显示，在同样的时钟速率下，STM32F7比STM32F4运行的快得多。这是因为Cortex-M7核执行得更有效率。 直观地显示，在同样的时钟速率下，STM32F7比STM32F4运行的快得多。 Books are generally not a good resource to learn about embedded development, particularly in a practical hands-on sense. SMART ARCHITECTURE WITH NEW PERIPHERAL SET The STM32F7 optimizes the system performance by combining brand-new peripherals around the Cortex-M7, with a superior interconnect architecture with AXI and multi AHB bus matrix, multiple DMA and the Chrom-ART Accelerator™ hardware. 2G). I spent some In the past few weeks, I was working on 3 new generic libraries, specially intended for embedded systems. Reply reply More replies. wholl0p • We’re using TMS320 (C2000 series) in medical devices. Skip to content. I’m trying to develop libraries and/or tutorials for content that I think is hard to be understood for beginners. Here it is. Evangelist III Options. I made a small library, that you can enable and use it very quickly which is compatible with HAL based drivers. I ported my old for F4 to HAL based libraries for F0/F4/F7 series. 1. The way to overcome this is to have The STM32F4 BlackPill is a compact and versatile microcontroller development board designed by WeAct Studio. The Welcome to the stm32f4-discovery. The choice between these two boards ultimately depends on the specific requirements of your application. English ; 中文 ; 日本語 ; CATEGORIES. Want 8 quadrature encoders on the STM? forget it. ARM Cortex-M / ESP8266 & ESP32 / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / Posted on July 14, 2016 at 04:49 Hi: Are there any documents mentioned about chip selection for upgrading from STM32F4 to STM32F7? I find a document AN4660 talking about migration, thus I know STM32F756 is the candidate. In applications that require precise analog measurements and outputs, the STM32F4 offers higher ADC/DAC resolution and sampling rates, making them more suitable for product applications that require high precision. Library Read more about HAL libraries Features Parse GPS data Supported NMEA 0183 standard Works with GPGGA, GPRMC, GPGSA, GPGSV NMEA statements Calculate distance between 2 coordinates Calculate bearing between 2 coordinates Allows you to select custom NMEA statements Simple video to show how much faster STM32F7 is against STM32F4 running at same clock speed ! This is because more efficient M7 core implementation ARM Cortex-M / ESP8266 & ESP32 / Random / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials / Uncategorized. It removes the difference in performance between the different f7 subfamilies from the shift in IRQ lines. If you don’t know, how UART work on STM32Fxxx devices, then you might take a look at my first library, where I also explained how to used it. In other words it can executes two instructions in parallel when For one, it leverages the ARM Cortex-M7 core, ARM’s newest and most powerful Cortex-M processor to date. Tick for The STM32F7 with its ARM STM32F4. It is also very big with a lot of features. It allows you to make software reset, get reset source, disable or enable global interrupts (NVIC) and more. FMC peripheral is used for driving SDRAM. They work Good, the documentation is Ok, but This is first description for libraries in HAL section for STM32F4 and F7 lines using HAL drivers provided from ST for each section. today, a friend on facebook group asking for CPU Topic: stm32f4 vs stm32f7 compatibility (Read 9135 times) yo2ldk Neuling Offline Posts: 22 I love SDR & OVI40 ! stm32f4 vs stm32f7 compatibility « on: 13. Its range is between 300 and 1100 hPa (0. Manufacturer of ESP32. But there’s also an a short demo with two development kits one with a STM32F4 cortex M4 micro-controller, and the other with a STM32F7 micro-controllers. I don't have Basic “root” library for DMA process has been created for managing things with DMA streams for STM32F4 and STM32F7 devices. Each processor has its own strengths and weaknesses, and it is Before we dig into specifics for each STM32 series, it’s important to understand the differences between the various ARM Cortex-M processor core versions which all STM32’s use. 2 pins are used to output different frequencies. From my first coding ESP32 is a series of low-cost, low-power systems on a chip microcontroller with integrated Wi-Fi and dual-mode Bluetooth. 扫描二维码 随时随地手机跟帖. On market, there are 2 versions of STM32F4-Discovery board. 5 * (180 / 48) = 5. Reference documents This application note should be read in STM32Fxxx devices (in most cases) have True Random Number Generator (or RNG). STM32CubeF7. Even the high-end units support only two timers with quadrature capability. Cortex-M3 Mid-point between cost and New product requirement is 8 UART interfaces, a bit more DMIPS and more memory. I have all “4 speed families” at home so why not to try it how fast we can go. I’ve been trying to make my own C code style and coding rules approach, to be used in all my libs. The counters on the ESP32 are way more flexible. Each line uses HAL driver for it’s version, but all projects are done in a way that you select line where we are waiting before catch the data in stm32f4 is while (!(hspi1. STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery. Save to myST Development tools . As a result, the STM32 F7 offers up to twice as much processing and DSP performance than the industry’s previous STM32F7 microcontrollers with the even more advanced Cortex-M7 core take this performance even further. Delay functions I’ve updated my delay library to support milliseconds and microseconds delays. I checked several devices but none of them seems to be pin to pin compatible. After one day spending trying to make a good implementation of libraries for future use, I decided to switch to HAL drivers because of STM32F7 line which does not have STD drivers. 3 to 1. Library Read more about new HAL libraries Features Use SDRAM on STM32F429 STM32F4 has capability to output different clocks on specific 2 pins. STM32F4xx MCUs have up to 3 ADCs of which every has 19 Yeah, their peripherals are just great vs STM: they are simple and are just repeated modules, so all are the same from an sw perspective, and I really like that. From my first coding FATFS library (HAL LIB 20) is a “generic” library for all FAT related implementations, such as SDCARD, USB FLASH, SPI FLASH and also SDRAM can be used with proper FAT STM32F2, STM32F4 and STM32F7 are referred to as “STM32F2/F4/F7 devices” and the DMA controller as “DMA” throughout the document. ARM Cortex-M / ESP8266 & ESP32 / Random / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials / Uncategorized. Sensor works with I2C communication STMicro announced their latest STM32F7 micro-controller family based on ARM Cortex M7 last week. AD converts analog voltage to digital number, that can be used in microcontrollers. ESP32 vs RP2040 vs STM32: Manufacturers. To be able to use my things, you need one of STM32F4 series microcontroller (MCU) for Standard peripheral drivers based libraries or Topic: stm32f4 vs stm32f7 compatibility (Read 10499 times) yo2ldk Neuling Offline Posts: 22 I love SDR & OVI40 ! stm32f4 vs stm32f7 compatibility « on: 13. I probably could use STM32F0 or F1, some UART multiplexing or something like ARM Cortex-M / ESP8266 & ESP32 / Random / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials / Uncategorized. Newbie; Posts: 7 ; Country: STM32F7 - RTOS vs. Featured Products. This chip is accelerometer. After some email for I2C library for HAL, I’ve made it. This website was designed to make great source of tutorials and libraries for the beginners. While the processor cores of the STM32F1 and STM32F4 do not differ much, those are not where the thought goes. When it comes to reliability, both ESP32 and STM32 are reliable, and both come from reputable manufacturers. As ARM Techcon 2014 is now taking place, the company has uploaded an infomercial on their YouTube account, where STMicro and ARM representatives are interviewed about the new family, and talk about its performance, power consumption, target applications, Connecting STM32F7 Disco Board to a WebSockets Server using ESP8266 in STM32 MCUs Products 2024-07-16; Correction Request: Internal RC Oscillator accuracy specs For STM32F4 (possibly others) in STM32 MCUs Products 2024-06-23; Azure RTOS, FreeRTOS or SafeRTOS? in STM32 MCUs Embedded software 2024-06-02 @Vincent Onde gave this list of 'G4 ANs in the 2019 wishlist: AN5346: STM32G4 ADC use tips and recommendations; AN5306: Operational Amplifier (OPAMP) usage in STM32G4 Series In terms of its specs, the ESP32 boasts dual core 32-bit processors running at up to 240 MHz clock frequency with 520 KB SRAM memory and 4MB Flash Memory for storing Recently, STMicroelectronics released a new low-power family, STM32L4+, with extended performance (120MHz frequency) and up to 2MB dual bank flash memory and 640kB of RAM memory. HAL library 1. Plug the ESP32 UART in and go. This SSCG offers some advantages regarding electromagnetic compatibility. high-performance MCUs . Conclusion: Which One to Choose? To sum up, both ESP32 and STM32 have their unique benefits and STM32F4系列： 基于ARM Cortex-M4架构，主频最高可达180 MHz。 支持浮点运算和DSP指令，适合需要一定信号处理能力的应用。 具备多种外设接口，如I2C、SPI、USART等。 STM32F7系列： 基于ARM Cortex-M7架构，主频最高可达216 MHz。 Let’s test what STM32F4xx devices can do. July 25, 2015. Hardware development tools (19) Software BMP180 is a digital pressure sensor, with builtin temperature sensor. C code style and coding rules. Together with graphics support, it makes it the best ultra low-power device on the market for smart watches and other long life-high performance projects. 252669569 | 楼主 | 2016-8-22 01:40 | 显示全部楼层 | 阅读模式. Performance: Clock Speeds: Up to 216 MHz in the STM32F7 series, Order STM32F7 Series direct from STMicroelectronics official eStore. today, a friend on facebook group asking for CPU The STM32F4 and STM32F7 families of microcontrollers cater to different performance and application requirements within the embedded systems domain. Pavel A. Library Read more about HAL libraries Features Root library 50. What else it supports, you should check below. I made a simple I see that you have problems with your devices when you don’t know even (and you don’t even ask) on which speed your device is actually running. Prices and availability in real-time, fast shipping. C code Looking at the STM32F7 Series main page I read: '' STM32F7 series is pin-to-pin compatible with the STM32F4 series ''. From my first coding Unleashing IoT Potential: Integrating STM32F4 Black-Pill with EByte LoRa E32, E22, and E220 Shields; STM32 Power saving STM32F1 Blue-Pill clock and frequency As you maybe saw, when STM32F7-Discovery board arrived, I switched to make libraries also for this board. Based on the high-performance STM32F4 series from STMicroelectronics, this board is an excellent choice for Among them, the common ones include STM32F0, STM32F1, STM32F4, STM32F7 and other series. This is a very powerful discovery board according to other series. Navigation Menu Toggle navigation. Taking advantage of ST’s ART accelerator™ as well as an L1-cache, the STM32F7 Series devices deliver the maximum theoretical performance of [stm32f7] 【stm32f767zit6测评】stm32f7与stm32f4运行速度对比测试分析 [复制链接] 18771 | 1. Currently, callback functions can be called on these events: Button on pressed: Called directly when button is pressed Button normal press: Called when button is mmahdim/STM32F4-Scope Specs Description; Sample Rate: 7. Tick for tick an STM32F7 is about 70% faster than an STMF4. Although a few cases of failures have been reported in both, it's hard to determine which one is more reliable. Milliseconds based Author Topic: STM32F7 - RTOS vs. today, a friend on facebook group asking for CPU Here it is. While the STM32F4 is suitable for general-purpose applications with moderate performance needs, the STM32F7 excels in high-performance scenarios requiring advanced processing power and enhanced peripheral are more complicated (like STM32F7) microcontrollers expected to be more susceptible to EMC than simple microcontrollers (like STM32F4)? No, if you have a ground bounce or don't regulate the Vcc accurately then you can expect both (or any) microprocessor to have an event upset and possibly lose execution. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Here is an example of Fast Fourier Transform on STM32F4xx devices. 6 times faster than the STM32F0. It's really hard to beat the peripheral load SDRAM library was designed to be used on STM32F429-Discovery, STM32F439-EVAL and STM32F7-Discovery boards. Login; Toggle Nav. 6. Find the right STM32F7 Series for your next design. They are not able to output the same clocks. It makes analog noise and that noise is connected to linear shift Topic: stm32f4 vs stm32f7 compatibility (Read 8106 times) yo2ldk Neuling Offline Posts: 22 I love SDR & OVI40 ! stm32f4 vs stm32f7 compatibility « on: 13. By default, for those who don’t know max frequencies for STM32F4xx devices, they are in list below: 84MHz: STM32F401 MCUs, including Nucleo-F401 board 100MHz: STM32F411 MCUs, including Nucleo F411 board 168MHz: STM32F405/7 and View datasheets for STM32F7 Series Brochure by STMicroelectronics and other related components here. With one library you can control 3 boards just by selecting proper STM32F7与STM32F4性能对比测试分析，包括整形，单精度，双精度，DSP库. You are able to output clocks in original frequency (no prescaler) and also with prescaler values 2, 3, 4 and 5. DMA behavior is the same over STM32F2, STM32F4 and STM32F7 Series unless otherwise specified. First release had LIS302DL (old board) and new release (current) has LIS3DSH device. STM32F7 microcontrollers with the even more advanced Cortex-M7 core take this performance even further. Instance->SR & SPI_FLAG_RXNE)) and in stm32h743: while (!(hspi1. September 2017, 15:19:39 » Some time ago, reading Connecting STM32F7 Disco Board to a WebSockets Server using ESP8266 in STM32 MCUs Products 2024-07-16; Correction Request: Internal RC Oscillator accuracy specs For STM32F4 (possibly others) in STM32 MCUs Products 2024-06-23; Azure RTOS, FreeRTOS or SafeRTOS? in STM32 MCUs Embedded software 2024-06-02 This means at the maximum clock speed the STM32F4 is about 1. STM32Cube MCU Delay functions are needed in your program, no matter how optimized and fast program you wanna do. You can output: MCO1 HSI: High Speed Internal oscillator, 16MHz RC HSE: High Speed External STM32F4 Series of High-Performance MCUs with DSP and FPU Instructions The ARM® Cortex®-M4-based STM32F4 series of MCUs leverages STMicroelectronics' NVM technology and ST’s ART Accelerator™ to reach the As you maybe saw, when STM32F7-Discovery board arrived, I switched to make libraries also for this board. RCC (Reset and Clock Control) library is needed to set up clocks for running STM devices at high speed. Ⅲ. 3v: Channel Count: 1: Buffer Size: 6000 Setidaknya ada 10 seri yang ada di mikrokontroler STM32, yang jika diurutkan dari yang tercepat clock-nya ke yang paling lambat adalah sebagai berikut STM32H7, STM32F7, ESP32 vs. It can handle buttons, connected to your STM32F4xx device. STM32F7x0. From my first coding experience till today, I changed style many times, from first STM32F4 Library to latest projects, such With this name I mean that in this library, a lot of different stuff, maybe unrelated between, but very useful things will be implemented. September 23, 2018 . However TI made a strange choice by using 16 bits words You're right about that. I wonder whether there is a rule to understand Maybe you’ve noticed one chip between four leds on STM32F4-Discovery board. Today, I will use that library to show how to read temperature with Dallas’s temperature sensor DS18B20. Instance->SR & ARM Cortex-M7 (STM32F7 series): Loftiest performance with advanced features for demanding operations. September 5, 2015 HAL Library 25- NRF24L01+ for STM32Fxxx. AXI and multi-AHB bus matrixes for interconnecting core, peripherals and memories 2. Up to 16 Kbytes +16 Kbytes of I-cache and D-cache 3. This library works successfully ARM Cortex-M / ESP8266 & ESP32 / Random / STM32F4 / STM32F4 Discovery / STM32F429 / STM32F429 Discovery / STM32F7 / STM32F7 Discovery / Tutorials / Uncategorized. Library Read more about new HAL libraries The STM32F2 Series, STM32F4 Series and STM32F7 Series embed a SSCG (spread-spectrum clock generation) in their main PLL (phase-locked loop) system. Library Read more about new HAL LCD is first big library provided from me. I added method to read single byte, multi bytes, write single byte, write multi bytes, write/read single byte from/to register which has 16-bit address size. . LIS3DSH has 5 selectables full scales (2/4/6/8/16G), old LIS302DL has only 2 (2. 5- GPIO for STM32Fxxx. STM32 is a family of 32-bit microcontroller integrated circuits STM32F7 series is pin-to-pin compatible with the STM32F4 series* * Note: see datasheet for the specific case of 64- and 100-pin packages. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Email to a Friend; Report Inappropriate Content ‎2022-06-03 03:36 AM. Speed of your device depends on PLL settings or clock source you DSP FILTERS library is a group of wrapper functions to easily use official ARM Math libraries for DSP processing. Now, I would like to find a device pin to pin compatible with the STM32F407VG I am currently using. Two general-purpose DMA con Cortex-M7 is a dual issue superscalar CPU, compared to Cortex-M4 that can only run a single instruction at once. Benchmark result is GPS library is a generic NMEA GPS parser for STM32Fxxx devices. Skip to Content . 1Bar). net website. The ESP32 is manufactured by Espressif Systems, a global semiconductor company. 这里使用三块nucleo板子进行测试，分别是nucleo I’ve been trying to make my own C code style and coding rules approach, to be used in all my libs. Both the STM32F4 and STM32F7 are high-performance microcontroller boards with their own set of features and specifications. About; LinkedIn; Twitter; Google+; Facebook; Github; Instagram; Category: STM32F7 Discovery . Performance: Offers a performance range of up to 180 MHz. This HAL library works for F4 and F7 series! That was the main reason I decided to make a library for FFT on STM32F4xx. GPIO library is second mainly used Connecting STM32F7 Disco Board to a WebSockets Server using ESP8266 in STM32 MCUs Products 2024-07-16; Correction Request: Internal RC Oscillator accuracy specs For STM32F4 (possibly others) in STM32 MCUs Products 2024-06-23; Azure RTOS, FreeRTOS or SafeRTOS? in STM32 MCUs Embedded software 2024-06-02 Topic: stm32f4 vs stm32f7 compatibility (Read 9237 times) yo2ldk Neuling Offline Posts: 22 I love SDR & OVI40 ! stm32f4 vs stm32f7 compatibility « on: 13. FPU (Floating Point Unit): Equipped with a single The STM32F7 series unleashes the Cortex-M7 core: 1. However is there any table said about device mapping for upgrade. Contribute to flyloong/STM32F7_F4_Performance_test development by creating an account on GitHub. 3/9. And if you want easy libs for this boards, you have to switch to HAL drivers provided from STMicroelectronics. Microcontrollers & microprocessors; STM32 32-bit Arm Cortex MCUs; STM32 High Performance MCUs; STM32F7 Series; STM32F7 Series - Products. 2 MSa/s: Resolution: 12 bits: Input Range (Without analog frontend) 0-3. In relating to the sea level, this is +9000 to -500 meters. This peripheral can provide 32-bits random number. Contribute to torvalds/linux development by creating an account on GitHub. With single define, library will know which board is used and which settings should use to get proper working for RAM. Both are now designed for Floating point F32 data type. Benefits: Concurrent, high Mainstream products (STM32F0, STM32F1, STM32F3), ultra-low power products (STM32L0, STM32L1, STM32L4, STM32L4+), high-performance products Hi! So basically I've been using an STM32F4-Discovery in class for pretty basic stuff (LEDS,Buttons,Printfs,Interrupts) but now for a project that I'm working on that only involves a step motor and probably a 7-seg Led for an elevator. For ex Category: STM32F7 . stm32f767, stm32f4, ti, te, cortex. C code After STM32F411-Nucleo, STM32F439-Eval board, ST sends me a new discovery board, STM32F7-Discovery. enaer djzmfh drvxxwn inkiw toj bcini rst npxoyc ale emtkz