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[ESP8266](https://github.com/SoCXin/ESP8266)\n\n[![sites](http://182.61.61.133/link/resources/SoC.png)](http://www.SoC.Xin)\n\n* [Espressif](https://www.espressif.com/): [Xtensa LX106](https://github.com/SoCXin/MIPS)\n* [L4R3](https://github.com/SoCXin/Level): 160 MHz x 1.22 DMIPS/MHz\n\n## [xin简介](https://github.com/SoCXin/ESP8266/wiki)\n\n[ESP8266](https://github.com/SoCXin/ESP8266) 内置超低功耗 Tensilica L106 32 位 RISC 处理器，CPU 时钟速度最高可达 160 MHz，可将高达 80% 的处理能力留给应用编程和开发。\n\n扩展型号[ESP8285](https://github.com/SoCXin/ESP8266)在封装不变的情况下内置1MB flash，可以实现更紧凑的板上设计。\n\n[![sites](docs/ESP8266.jpg)](https://www.espressif.com/zh-hans/products/hardware/esp8266ex/overview)\n\n\n### 关键参数\n\n[![sites](docs/ESP8266EX.jpg)](https://www.espressif.com/zh-hans/products/hardware/esp8266ex/overview)\n\n* 1T1R 802.11 b/g/n，support WPA/WPA2，Support STA/AP/STA+AP\n* +20dBm in 802.11b；STBC, 1x1 MIMO, 2x1 MIMO\n* Integrated TR switch, balun, LNA, power amplifier and matching network\n* SDIO 2.0, (H) SPI, UART, I2C, I2S, IR Remote Control, PWM, GPIO\n\n#### 功率参数\n\n* Deep sleep \u003c10uA, Power down\u003c 5uA，Standby \u003c 1.0mW (DTIM3)，Wake up and transmit packets in \u003c 2ms\n\n[![sites](docs/ESP8266PWR.jpg)](https://www.espressif.com/zh-hans/products/hardware/esp8266ex/overview)\n\n### [xin资源](https://github.com/SoCXin)\n\n* [参考资源](src/)\n* [相关文档](docs/)\n* [典型应用](project/)\n* [入门教程](https://docs.soc.xin/ESP8266)\n\n\n### 封装规格\n\nESP8266封装： QFN 32 (5mm x 5mm)\nESP8285封装： QFN 32 (5mm x 5mm)\n\n[![sites](docs/ESP8266P.jpg)](https://www.espressif.com/zh-hans/products/hardware/esp8266ex/overview)\n\n### 内存分析\n\n* IRAM 空间为 64 KB\n\n前 32 KB 用作IRAM，用来存放没有加 ICACHE_FLASH_ATTR 的代码，即 .text 段，会通过 ROM code 或二级 boot 从 SPI Flash 中的 BIN 中加载到 IRAM。\n\n后 32 KB 被映射作为 iCache，放在 SPI Flash 中的，加了 ICACHE_FLASH_ATTR 的代码会被从 SPI Flash 自动动态加载到 iCache。\n\n* DRAM 空间为 96 KB\n\n对于 Non-OS_SDK，前80 KB 用来存放 .data/.bss/.rodata/heap，heap 区的大小取决于 .data/.bss/.rodata 的大小；还有 16 KB 给 ROM code 使用。\n\n对于 RTOS_SDK，96 KB 用来存放 .data/.bss/.rodata/heap，heap 区的大小取决于 .data/.bss/.rodata 的大小。\n\n\n### [选型建议](https://github.com/SoCXin)\n\n[ESP8266](https://github.com/SoCXin/ESP8266)是开源软硬件中最具影响力的一颗WiFi SoC，拥有了arduino平台的很多资源，全球大量创客共同维护了大量的经典示例和开发资源，十分适合demo产品构建。其后续功能增强的[ESP32](https://github.com/SoCXin/ESP32)同样拥有不俗的表现。\n\n[ESP8266](https://github.com/SoCXin/ESP8266)系列产品的主要短板在于无线通信的稳定性，相较于传统的通信厂商产品，WiFi的连接质量相对更差，同时对于没有相关开发经验的人来说，入门的门槛相对高。\n\n相应竞品包括[RTL8710](https://github.com/SoCXin/RTL8710)和 [RDA5981](https://github.com/SoCXin/RDA5981)，两者都是基于[Cortex M](https://github.com/SoCXin/CM)内核开发，更偏向主流的产品开发。\n\n### 验证开发板\n\n[![sites](docs/B.jpg)](https://detail.tmall.com/item.htm?spm=a230r.1.14.28.50e564d3axhB7j\u0026id=624276301887\u0026ns=1\u0026abbucket=19)\n\n### [探索芯世界 www.SoC.xin](http://www.SoC.Xin)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsocxin%2Fesp8266","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsocxin%2Fesp8266","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsocxin%2Fesp8266/lists"}