【 云霄一天玩转STM32F7-Discovery 】之一：初探篇

Oliver_CHENG

非常感谢云汉社区给我这次试用机会。

       STM32F746G发现板是一个基于cortex M7架构STM32F746NGH6 微处理器的完全的示范和开发平台。该微处理器有四个I2C接口，6个SPI接口，三个多路复用独立的I2S，SDMMC，四个通用异步收发器，四个通用异步收发器，两路CAN，三个12位AD，；两个12位DA，两个 音频接口，，8到14位数字摄像头模块接口，内部集成320+16+4KB SRAM，1MB Flash存储器，USB OTG FS HS，USB OTG接口、以太网MAC、FMC、四SPI接口，SWD调试支持。这个发现板为用户提供所需的一切，更容易的启动和开发应用程序。

   The STM32F746G-DISCO discovery board (32F746GDISCOVERY) is a complete demonstration and development platform for STMicroelectronics ARM® Cortex®-M7 corebased STM32F746NGH6 microcontroller. This microcontroller features four I2Cs, six SPIs with three multiplexed simplex I2S, SDMMC, four USARTs, four UARTs, two CANs, three 12-bit ADCs, two 12-bit DACs, two SAIs, 8- to 14-bit digital camera module interface,internal 320+16+4 KB SRAM and 1 MB Flash memory, USB HS OTG, USB FS OTG,Ethernet MAC, FMC interface, Quad-SPI interface, SWD debugging support. This discovery board offers everything required for users to get started quickly and develop applications easily.

    全系列的硬件功能在板上有助于评估几乎所有的外设和开发自己应用程序。容易扩展，程序下载器内置。

    The full range of hardware features on the board helps to evaluate almost all peripherals (USB OTG HS, USB OTG FS, Ethernet 10/100Mb, MicroSD Card, USART, SAI Audio DAC stereo with audio jack input and output, MEMS digital microphones, SDRAM, Quad-SPI Flash memory, 4.3-inch color LCD-TFT with a capacitive multi-touch panel, SPDIF RCA input, etc.) and develop your own applications. Arduino Uno V3 connectors make it possible to easily connect extension shields or a daughterboard for your specific application. The integrated ST-LINK/V2-1 provides an embedded in-circuit debugger and programmer for the STM32 MCU.

       STM32F746G微处理器介绍：

    1   Core: ARM® 32-bit Cortex®-M7 CPU with FPU, adaptive real-time accelerator (ART Accelerator™) and L1-cache: 4KB data cache and 4KB instruction cache, allowing 0-wait state execution from embedded Flash memory and external memories, frequency up to 216 MHz, MPU, 462 DMIPS/2.14 DMIPS/MHz  (Dhrystone 2.1), and DSP instructions.
  2 .Memories: 1MB of Flash memory,1024 bytes of OTP memory.SRAM: 320KB (including 64KB of data TCM RAM for critical real time data) +16KB of instruction TCM RAM (for critical real time routines) + 4KB of backup SRAR (available in the lowest power modes)  Flexible external memory controller with up  to 32-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAN memories
 3.168 I/O ports with interrupt capability,164 fast I/Os up to 108 MHz  ,166 5 V-tolerant I/Os。

原理图之顶层设计：

   

微处理器STM32F746引脚图

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汉淮南王

除了不能跑linux ，性能 可以跟ARM9比了。

浩瀚天地

可以跑UCLinux