<p><em>Nordic nRF52833 SoC</em><em>助力</em><em>PXN-K6</em><em>游戏键盘，用于使用低功耗蓝牙、</em><em>2.4GHz</em><em>专有无线连接和</em><em>USB</em><em>有线连接的游戏应用</em></p>
<p><span>挪威奥斯陆</span><span><span> </span>– 2020</span><span>年</span><span>11</span><span>月16日</span><span><span> </span>–</span><span><span> </span></span><span>Nordic Semiconductor</span><span>宣布总部位于深圳市的莱仕达电子科技有限公司</span><span>(PXN)</span><span>选择其</span><span>nRF52833</span><span>低功耗</span><span>蓝牙</span><em><span> </span></em><span>(</span><em>Bluetooth</em><span>®</span><span><span> </span>Low Energy /Bluetooth LE)</span><span>先进多协议芯片级系统</span><span>(SoC)</span><span>为</span><span>“PXN-K6</span><span>游戏键盘中枢</span><span>”</span><span>提供核心处理能力和无线连接。</span></p>
<p><span>nRF52833 SoC</span><span>带有浮点单元</span><span>(FPU)</span><span>和</span><span>DSP</span><span>指令集的</span><span>64MHz</span><span>、</span><span>32</span><span>位</span><span>Arm®Cortex®M4</span><span>处理器，为</span><span>PXN-K6</span><span>键盘提供了充足的处理能力以支持多种游戏模式。此外，</span><span>nRF52833</span><span>的多协议支持功能使得键盘能够利用专有</span><span>2.4GHz</span><span>和低功耗蓝牙无线连接。而且，这款</span><span>SoC</span><span>器件的全速</span><span>(12 Mbps) USB</span><span>功能允许键盘用作兼容</span><span>USB</span><span>的有线外设。</span></p>
<p><span>在游戏主机模式下，用户将</span><span>2.4GHz</span><span>加密狗插入索尼</span><span><span> </span>PS4</span><span>和</span><span>PS3</span><span>、微软</span><span>Xbox One</span><span>或任天堂</span><span>Switch</span><span>游戏控制台，</span><span>便可让</span><span>PXN-K6</span><span>键盘通过延迟非常低的专有</span><span>2.4GHz</span><span>无线连接与游戏主机进行通信，并支持无线音频。莱仕达表示超低延迟的无线链接改善了用户玩</span><span>“</span><span>第一人称射击</span><span>”</span><span>动作游戏时的体验。在此模式下，键盘还可以支持有线或无线鼠标。</span></p>
<p><span>使用标准模式时，</span><span>PXN-K6</span><span>可以用作普通低功耗蓝牙或</span><span>2.4GHz</span><span>专有无线计算机键盘。在游戏模式下，可以使用低功耗蓝牙将</span><span>PXN-K6</span><span>键盘无线连接到智能手机，智能手机上的配套应用程序可让用户自定义键盘配置，用</span><span>来进行</span><span>游戏主机的游戏。</span></p>
<p><span>全速</span><span>(12 Mbps) USB</span><span>操作是</span><span>nRF52833</span><span>的关键功能。</span><span>USB</span><span>是流行的连接接口，可连接许多主机设备</span><span>(</span><span>例如</span><span>PC</span><span>、智能手机和网关</span><span>)</span><span>以进行低延迟、高带宽通信。这种连接还可通过</span><span>USB</span><span>实现设备固件更新</span><span>(DFU)</span><span>。在</span><span>USB</span><span>模式下，</span><span>PXN-K6</span><span>键盘可用作普通的有线键盘。</span></p>
<p><span>nRF52833</span><span>结合了</span><span>Arm M4</span><span>处理器与</span><span>2.4GHz</span><span>多协议无线电</span><span>(</span><span>支持蓝牙</span><span>5.2</span><span>、蓝牙</span><span>mesh</span><span>、测向、</span><span>2Mbps</span><span>吞吐率和长距离，以及</span><span>Thread</span><span>、</span><span>Zigbee</span><span>、</span><span>IEEE 802.15.4</span><span>和专有</span><span>2.4GHz RF</span><span>协议软件</span><span>)</span><span>，具有</span><span>+8dBm</span><span>的最大发射功率和</span><span>-95dBm</span><span>的接收灵敏度。这款</span><span>SoC</span><span>器件具有充足的闪存</span><span>(512kB)</span><span>和</span><span>RAM(128kB)</span><span>内存，支持动态多协议功能，独特地实现并发无线协议连接。</span></p>
<p><span>nRF52833 SoC</span><span>随附</span><span>Nordic</span><span>的</span><span>S113</span><span>或</span><span>S140 SoftDevice</span><span>蓝牙</span><span>RF</span><span>协议栈一起提供。</span><span>S140</span><span>是合格的蓝牙</span><span>5.1</span><span>堆栈，支持</span><span>2 Mbps</span><span>吞吐量、长距离和通过信道选择算法</span><span>#2 (CSA#2)</span><span>以</span><span>实现更好</span><span>的</span><span>共存性。</span></p>
<p><span>Nordic</span><span>的软件体系结构还清晰分</span><span>隔开</span><span>RF</span><span>协议软件和莱仕达的应用程序代码，从而简化了开发过程，并确保在开发、编译、测试和验证应用程序代码时不会损坏</span><span>SoftDevice</span><span>。事实证明</span><span>Nordic</span><span>的</span><span>nRF5</span><span>软件开发套件</span><span>(SDK)</span><span>对于协助</span><span>PXN</span><span>开发键盘应用程序代码非常重要，该</span><span>SDK</span><span>提供了所有必要的示例、程序库和驱动程序，以便开展低功耗蓝牙应用的开发。</span></p>
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