RDA5981_SDK_MbedOS515_V1.3.6 UNISOC RDA5981 is a low power MCU that is a high performance solution for Wi-Fi smart speakers and Wi-Fi smart homes. With ARM Cortex-M4 core, mbed OS and secure network protocol stack, the chipset supports voice recognition on demand for audio resources such as Badiu Music, Himalayan, Qingting FM, and Beva Childern’s song. Encryption method (DLNA, Qplay) alongside QFN-40 encapsulation are included, providing improved memory storage, extended frequency range, and increased performance.

1、WiFi Stack 目录features/FEATURE_IPV4为WiFi Stack + LWIP，实现WLAN 和TCP/IP 联网功能。 2、HAL 目录hal/targets/TARGET_RDA为硬件虚拟层，其中包括各外设底层驱动。 3、RTX 目录rtos是ARM公司提供的CMSIS-RTOS RTX 源码， 是一个基于时间片和优先级的实时OS。 3、Test Case 目录 TESTS/TARGET_RDA 包含了若干针对 RDA5981 的测试用例，可以对外设和协议栈分别 进行测试。 Windows开发环境需要预先安装以下软件：  Kei MDK (>= 5.17)  Python (2.7.10) 除此之外，建议使用命令行工具 Msys2，更方便地进行编译。下面将详细介绍如何配置 mbed 编译 环境。