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CMU_Document/file_25dd2_ez-Q 2.5子系统间通信协议/[file_25dd2]ez-Q 2.5子系统间通信协...

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<h1 id="修订记录">修订记录 </h1>
<table>
<thead>
<tr>
<th style="text-align:center">版本号</th>
<th style="text-align:center">日期</th>
<th style="text-align:left">修订内容</th>
<th style="text-align:center">修订人</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">1.0</td>
<td style="text-align:center">2025.12.08</td>
<td style="text-align:left">初始版本</td>
<td style="text-align:center">周爽</td>
</tr>
</tbody>
</table>
<h1 id="1-引言">1. 引言 </h1>
<p>本文档用于描述ez-Q 2.5测控系统各子系统（驱动子系统、通信子系统、反馈子系统、调控子系统、读出子系统）间的通信协议。</p>
<p>各子系统间的通信互连关系如图1所示。驱动通过TCP和UDP协议与通信子系统和反馈子系统通信；通信子系统通过Aurora 64b/66b协议与调控子系统和读出板通信，通过UART协议与泵浦板和混频板通信；反馈子系统通过全局反馈板间数据协议（GFP）与读出板通信。<br>
<img src="data:image/svg+xml;charset=utf-8;base64,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
<center style="font-size:16px;color:black;">图1. 子系统间通信互连关系</center> <br>
<p>具体地，下表列举了各子系统间的通信协议以及对应的物理接口。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center">通信端A</th>
<th style="text-align:center">通信端B</th>
<th style="text-align:center">通信协议</th>
<th style="text-align:center">物理接口</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">1</td>
<td style="text-align:center">驱动</td>
<td style="text-align:center">通信子系统</td>
<td style="text-align:center">TCP, UDP</td>
<td style="text-align:center">SFP光口</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">驱动</td>
<td style="text-align:center">反馈子系统</td>
<td style="text-align:center">TCP, UDP</td>
<td style="text-align:center">SFP光口</td>
</tr>
<tr>
<td style="text-align:center">3</td>
<td style="text-align:center">通信子系统</td>
<td style="text-align:center">调控子系统</td>
<td style="text-align:center">Aurora 64b/66b</td>
<td style="text-align:center">PXIe背板</td>
</tr>
<tr>
<td style="text-align:center" rowspan="2">4</td>
<td style="text-align:center" rowspan="2">通信子系统</td>
<td style="text-align:center">读出子系统（读出板）</td>
<td style="text-align:center">Aurora 64b/66b</td>
<td style="text-align:center">PXIe背板</td>
</tr>
<tr>
<td style="text-align:center">读出子系统（泵浦板、混频板）</td>
<td style="text-align:center">UART</td>
<td style="text-align:center">PXIe背板</td>
</tr>
<tr>
<td style="text-align:center">5</td>
<td style="text-align:center">反馈子系统</td>
<td style="text-align:center">读出子系统（读出板）</td>
<td style="text-align:center">GFP</td>
<td style="text-align:center">PXIe背板</td>
</tr>
</tbody>
</table>
<h1 id="2-transaction数据格式">2. Transaction数据格式 </h1>
<p>在ez-Q 2.5测控系统中，定义了Transaction这一数据格式，该数据格式被应用于TCP、UDP、Aurora 64b/66b等通信协议中，基于Transaction可以实现寄存器读写、存储器读写、结果上传等所有实验中需要的业务数据传输。</p>
<p>Transaction的具体数据格式定义如下表所示。一个Transaction包括命令（CMD）和数据（DATA）两部分；其中，命令部分又可分为读写标志（W/R）、主动回读标志（ARD FLAG）、芯片ID（CID）、地址（ADDR）、扩展地址（EXADDR）和长度（LENGTH）；数据部分要求长度必须是32-bit的整数倍。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center" colspan="2">数据结构</th>
<th style="text-align:center">长度</th>
<th style="text-align:center">比特序</th>
<th style="text-align:center">功能描述</th>
<th style="text-align:left">备注</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center" rowspan="6">1</td>
<td style="text-align:center" rowspan="6">CMD</td>
<td style="text-align:center">W/R</td>
<td style="text-align:center">1 bit</td>
<td style="text-align:center">[63]</td>
<td style="text-align:center">读写标识，0：W；1：R</td>
<td style="text-align:left">/</td>
</tr>
<tr>
<td style="text-align:center">ARD FLAG</td>
<td style="text-align:center">1 bit</td>
<td style="text-align:center">[62]</td>
<td style="text-align:center">主动回读数据标志</td>
<td style="text-align:left">主动回读模块根据读出芯片读请求读出实验数据</td>
</tr>
<tr>
<td style="text-align:center">CID</td>
<td style="text-align:center">5 bits</td>
<td style="text-align:center">[61:57]</td>
<td style="text-align:center">芯片组中每个芯片的ID标识</td>
<td style="text-align:left">包括量子测控芯片组及其他需要配置的芯片组</td>
</tr>
<tr>
<td style="text-align:center">ADDR</td>
<td style="text-align:center">25 bits</td>
<td style="text-align:center">[56:32]</td>
<td style="text-align:center">低25位地址</td>
<td style="text-align:left">可与EXADDR拼接使用，或直接映射到量子测控芯片的偏移地址</td>
</tr>
<tr>
<td style="text-align:center">EXADDR</td>
<td style="text-align:center">12 bits</td>
<td style="text-align:center">[31:20]</td>
<td style="text-align:center">扩展地址，可根据需求划分为多个功能区<br>（4比特预留+5比特槽位+3比特板卡内部预留）</td>
<td style="text-align:left">可与ADDR拼接使用此时寻址空间为128GByte；<br>该4096K的地址空间可按照需求映射给集控中心和外部SIP芯片组</td>
</tr>
<tr>
<td style="text-align:center">LENGTH</td>
<td style="text-align:center">20 bits</td>
<td style="text-align:center">[19:0]</td>
<td style="text-align:center">指示读写数据长度，以Byte为单位</td>
<td style="text-align:left">最大支持1MByte</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center" colspan="2">DATA</td>
<td style="text-align:center">N*4 bytes</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">数据</td>
<td style="text-align:left">读操作时，无需包含该项</td>
</tr>
</tbody>
</table>
<br>
<p>在ez-Q 2.5测控系统中，使用Transaction扩展地址（EXADDR）中的EXADDR[7:3]这5个比特来标识槽位号，一个机箱中槽位号的使用如下表所示。</p>
<table>
<thead>
<tr>
<th style="text-align:center">机箱位置</th>
<th style="text-align:center">槽位号</th>
<th style="text-align:center">EXADDR[7:3]</th>
<th style="text-align:center">板卡</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center" rowspan="20">正面</td>
<td style="text-align:center">0</td>
<td style="text-align:center">5‘b00000</td>
<td style="text-align:center">调控板 #1</td>
</tr>
<tr>
<td style="text-align:center">1</td>
<td style="text-align:center">5‘b00001</td>
<td style="text-align:center">调控板 #2</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">5‘b00010</td>
<td style="text-align:center">调控板 #3</td>
</tr>
<tr>
<td style="text-align:center">3</td>
<td style="text-align:center">5‘b00011</td>
<td style="text-align:center">泵浦板 #1</td>
</tr>
<tr>
<td style="text-align:center">4</td>
<td style="text-align:center">5‘b00100</td>
<td style="text-align:center">读出板 #1</td>
</tr>
<tr>
<td style="text-align:center">5</td>
<td style="text-align:center">5‘b00101</td>
<td style="text-align:center">混频板 #1</td>
</tr>
<tr>
<td style="text-align:center">6</td>
<td style="text-align:center">5‘b00110</td>
<td style="text-align:center">调控板 #4</td>
</tr>
<tr>
<td style="text-align:center">7</td>
<td style="text-align:center">5‘b00111</td>
<td style="text-align:center">调控板 #5</td>
</tr>
<tr>
<td style="text-align:center">8</td>
<td style="text-align:center">5‘b01000</td>
<td style="text-align:center">调控板 #6</td>
</tr>
<tr>
<td style="text-align:center">9</td>
<td style="text-align:center">5‘b01001</td>
<td style="text-align:center">调控板 #7</td>
</tr>
<tr>
<td style="text-align:center">11</td>
<td style="text-align:center">5‘b01011</td>
<td style="text-align:center">调控板 #8</td>
</tr>
<tr>
<td style="text-align:center">12</td>
<td style="text-align:center">5‘b01100</td>
<td style="text-align:center">调控板 #9</td>
</tr>
<tr>
<td style="text-align:center">13</td>
<td style="text-align:center">5‘b01101</td>
<td style="text-align:center">调控板 #10</td>
</tr>
<tr>
<td style="text-align:center">14</td>
<td style="text-align:center">5‘b01110</td>
<td style="text-align:center">泵浦板 #2</td>
</tr>
<tr>
<td style="text-align:center">15</td>
<td style="text-align:center">5‘b01111</td>
<td style="text-align:center">读出板 #2</td>
</tr>
<tr>
<td style="text-align:center">16</td>
<td style="text-align:center">5‘b10000</td>
<td style="text-align:center">混频板 #2</td>
</tr>
<tr>
<td style="text-align:center">17</td>
<td style="text-align:center">5‘b10001</td>
<td style="text-align:center">调控板 #11</td>
</tr>
<tr>
<td style="text-align:center">18</td>
<td style="text-align:center">5‘b10010</td>
<td style="text-align:center">调控板 #12</td>
</tr>
<tr>
<td style="text-align:center">19</td>
<td style="text-align:center">5‘b10011</td>
<td style="text-align:center">调控板 #13</td>
</tr>
<tr>
<td style="text-align:center">20</td>
<td style="text-align:center">5‘b10100</td>
<td style="text-align:center">调控板 #14</td>
</tr>
<tr>
<td style="text-align:center" rowspan="3">背面</td>
<td style="text-align:center">21</td>
<td style="text-align:center">5‘b10101</td>
<td style="text-align:center">时钟同步板</td>
</tr>
<tr>
<td style="text-align:center">23</td>
<td style="text-align:center">5‘b10111</td>
<td style="text-align:center">通信板</td>
</tr>
<tr>
<td style="text-align:center">25</td>
<td style="text-align:center">5‘b11001</td>
<td style="text-align:center">反馈板</td>
</tr>
</tbody>
</table>
<h1 id="3-tcp与udp协议">3. TCP与UDP协议 </h1>
<p>驱动子系统与通信子系统和反馈子系统间通过千兆/万兆光网络进行数据交互，数据传输采用标准的TCP协议和UDP协议。其中，UDP应用于状态监控和TOE配置；TCP应用于子系统配置数据、子系统回传数据和读出主动上传的数据。基于标准的TCP协议和UDP协议，对其报文格式中的数据字段部分进行了进一步的协议划分，以满足使用需求。</p>
<h2 id="31-tcp数据协议">3.1 TCP数据协议 </h2>
<p>TCP协议提供了一种可靠的、面向连接的数据传输服务，确保了数据在传输过程中不丢失、不重复，并且按顺序到达。因此，实验中的配置数据、采集结果等对可靠性要求高的数据均采用TCP协议传输。</p>
<p>TCP报文的数据格式如图2所示，在数据字段中包括一个或多个Transaction，数据的封装与解析均按照Transaction数据格式执行。驱动软件通过TCP协议将所有的芯片与板卡配置信息发送给通信子系统和反馈子系统，实验中所有的采集结果也通过TCP协议上传给驱动。<br>
<img src="data:image/svg+xml;charset=utf-8;base64,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
<center style="font-size:16px;color:black;">图2. TCP数据格式</center> <br>
<h2 id="32-udp数据协议">3.2 UDP数据协议 </h2>
<p>UDP协议提供了一种简单的、无连接的数据传输服务，不提供可靠性、顺序性和流量控制。UDP协议不需要建立连接，因此适用于TOE的寄存器配置业务，包括IP地址配置、网关配置、启动TCP连接等。状态监控业务对传输可靠性要求不高，同时要求支持广播功能，因此也使用UDP协议。</p>
<p>UDP报文的数据格式如图3所示，在数据字段中包括了数据头部（HEADER）、数据长度（LENGTH）、负载数据（PAYLOAD）和校验值（CHECK）4个部分，其中PAYLOAD包含有一个或多个Transaction。<br>
<img src="data:image/svg+xml;charset=utf-8;base64,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
<center style="font-size:16px;color:black;">图3. UDP数据格式</center> <br>
<p>UDP数据的具体格式定义如下表所示，通过HEADER字段来区分TOE配置业务和状态监控业务。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center">数据结构</th>
<th style="text-align:center">长度</th>
<th style="text-align:center">比特序</th>
<th style="text-align:center">功能描述</th>
<th style="text-align:left">备注</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center" rowspan="2">1</td>
<td style="text-align:center">HEADER</td>
<td style="text-align:center">16 bits</td>
<td style="text-align:center">[31:16]</td>
<td style="text-align:center">0x4547，TOE寄存器；<br>0x494e，状态监控</td>
<td style="text-align:left">/</td>
</tr>
<tr>
<td style="text-align:center">LENGTH</td>
<td style="text-align:center">16 bits</td>
<td style="text-align:center">[15:0]</td>
<td style="text-align:center">PAYLOAD字段的长度，单位为byte</td>
<td style="text-align:left">/</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">PAYLOAD</td>
<td style="text-align:center">N*4 bytes</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">负载数据，长度为32-bits的整数倍</td>
<td style="text-align:left">一个或多个Transaction</td>
</tr>
<tr>
<td style="text-align:center">3</td>
<td style="text-align:center">CHECK</td>
<td style="text-align:center">32 bits</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">CRC32校验，计算PAYLOAD字段的CRC32</td>
<td style="text-align:left">CRC32生成多项式：G(x) = x<sup>32</sup> + x<sup>26</sup> + x<sup>23</sup> + x<sup>22</sup> + x<sup>16</sup> + x<sup>12</sup> + x<sup>11</sup> + x<sup>10</sup> + x<sup>8</sup> + x<sup>7</sup> + x<sup>5</sup> + x<sup>4</sup> + x<sup>2</sup> + x + 1，初始值为0xffffffff</td>
</tr>
</tbody>
</table>
<h1 id="4-aurora-64b66b协议">4. Aurora 64b/66b协议 </h1>
<p>Aurora 64b/66b协议是一种用于点对点串行链路间传输数据的可扩展轻量级链路层协议，可为物理层提供透明接口并支持高速收发器应用。该协议具有低延迟、高带宽及高度可配置特性，采用64b/66b编码。基于Aurora 64b/66b协议可以实现10 Gbps速率的数据传输，适用于通信子系统、调控子系统和读出子系统间的高速数据传输。</p>
<p>Aurora 64b/66b协议的数据格式如图4所示，分为数据块（Data Blocks）和分隔块（Separator Block），数据块为实际传输的业务数据，分隔块标志了数据块的结束，理论上数据块没有长度限制，可以实现很高的传输效率。实际使用中，数据块中包括了一个或多个Transaction。<br>
<img src="data:image/svg+xml;charset=utf-8;base64,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
<center style="font-size:16px;color:black;">图4. Aurora 64b/66b数据格式</center> <br>
<p>在数据传输过程中，接收端的处理速率跟不上发送端的发送速率时会发生数据的丢失。引入流量控制机制来避免这一问题，当接收方接近处理极限时，发送流控数据给发送方，让发送放停止数据发送，待接收端有足够的接收处理能力时再恢复发送。使用Aurora 64b/66b协议中的immediate NFC流控方式，即发送端在接收到NFC信号后立即开始流控。</p>
<h1 id="5-uart协议">5. UART协议 </h1>
<p>通信子系统与读出子系统的泵浦板和混频板之间的通信数据量少、速率要求低，采用UART协议进行数据交互。UART协议采用标准的1-8-1模式，即1比特起始位、8比特数据位、1比特停止位。UART通信传输的具体数据内容为寄存器指令，每条指令64比特，指令采用小字节序传输。例如对于64比特指令：0x0807060504030201，先传输“08”字节，最后传输“01”字节；对于字节：0b00001111，先传输“1”比特，最后传输“0”比特。</p>
<p>主控端（通信子系统）发送和接收的指令数据格式如下表所示。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center">字节</th>
<th style="text-align:center">比特序</th>
<th style="text-align:center">标识</th>
<th style="text-align:center">说明</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">1</td>
<td style="text-align:center">0~3</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">DATA</td>
<td style="text-align:center">32比特寄存器数据；读寄存器时，该域置0xffffffff</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">4~6</td>
<td style="text-align:center">[47:32]</td>
<td style="text-align:center">ADDR</td>
<td style="text-align:center">寄存器地址，地址单位是字节</td>
</tr>
<tr>
<td style="text-align:center" rowspan="3">3</td>
<td style="text-align:center" rowspan="3">7</td>
<td style="text-align:center">[61:56]</td>
<td style="text-align:center">SLOT</td>
<td style="text-align:center">槽位信息</td>
</tr>
<tr>
<td style="text-align:center">62</td>
<td style="text-align:center">R/W</td>
<td style="text-align:center">读写选择；0：读，1：写</td>
</tr>
<tr>
<td style="text-align:center">63</td>
<td style="text-align:center">MEM_REG</td>
<td style="text-align:center">寄存器/存储器操作指令区分，寄存器操作为0</td>
</tr>
</tbody>
</table>
<p>主控端（通信子系统）数据发送后，从端（泵浦板、混频板）会发送响应帧，响应帧的高32位保持与控制帧高32位相同，低32位为读回的数据或者与控制帧低32位保持相同，具体数据格式如下表所示。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center">字节</th>
<th style="text-align:center">比特序</th>
<th style="text-align:center">标识</th>
<th style="text-align:center">说明</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">1</td>
<td style="text-align:center">0~3</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">DATA</td>
<td style="text-align:center">32比特寄存器数据；读寄存器时，该域为读回的寄存器值，写寄存器时该域返回实际写入后读回的数据</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">4~6</td>
<td style="text-align:center">[47:32]</td>
<td style="text-align:center">ADDR</td>
<td style="text-align:center">寄存器地址，地址单位是字节</td>
</tr>
<tr>
<td style="text-align:center" rowspan="3">3</td>
<td style="text-align:center" rowspan="3">7</td>
<td style="text-align:center">[61:56]</td>
<td style="text-align:center">SLOT</td>
<td style="text-align:center">槽位信息</td>
</tr>
<tr>
<td style="text-align:center">62</td>
<td style="text-align:center">R/W</td>
<td style="text-align:center">读写选择；0：读，1：写</td>
</tr>
<tr>
<td style="text-align:center">63</td>
<td style="text-align:center">MEM_REG</td>
<td style="text-align:center">寄存器/存储器操作指令区分，寄存器操作为0</td>
</tr>
</tbody>
</table>
<h1 id="6-全局反馈板间数据协议gfp">6. 全局反馈板间数据协议（GFP） </h1>
<p>反馈子系统中的反馈主板需要与读出子系统间进行全局反馈信息交互，该交互链路要求低通信延迟。基于GT物理链路制定了全局反馈板间数据协议，以实现低延迟的反馈信息交互。</p>
<p>全局反馈板间数据协议以帧为单位进行数据传输，每帧32字节，具体的数据格式如下表所示。</p>
<table>
<thead>
<tr>
<th style="text-align:center">序号</th>
<th style="text-align:center">字节</th>
<th style="text-align:center">比特序</th>
<th style="text-align:center">标识</th>
<th style="text-align:left">说明</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">1</td>
<td style="text-align:center">0~3</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">帧头</td>
<td style="text-align:left">固定值0xFCA5B659（可自定义）</td>
</tr>
<tr>
<td style="text-align:center">2</td>
<td style="text-align:center">4~7</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">帧序号</td>
<td style="text-align:left">每128个量子比特对应1个序号，从0开始依次累加，4B字节溢出循环；序号发送前与0xA5A5A5A5进行异或处理，接收序号后进行异或处理后，再做序号连续性检测</td>
</tr>
<tr>
<td style="text-align:center">3</td>
<td style="text-align:center">8~15</td>
<td style="text-align:center">[63:0]</td>
<td style="text-align:center">消息体1</td>
<td style="text-align:left">量子态信息，每2比特标识1个态信息；2’b00：0态，2’b01：1态，2’b10：2态，2’b11：无效态；每个读取有效传输只有64bit，每读取板4路读取线，每个读取线8qubit，共32个量子态</td>
</tr>
<tr>
<td style="text-align:center">4</td>
<td style="text-align:center">16~23</td>
<td style="text-align:center">[63:0]</td>
<td style="text-align:center">消息体2</td>
<td style="text-align:left">默认0xA5A5A5A5_A5A5A5A5，预留设计，需要态扩充比特位时可以启用</td>
</tr>
<tr>
<td style="text-align:center">5</td>
<td style="text-align:center">24~25</td>
<td style="text-align:center">[15:0]</td>
<td style="text-align:center">校验码</td>
<td style="text-align:left">生成多项式：G(x)=x<sup>16</sup>+x<sup>15</sup>+x<sup>2</sup>+1，初相为1；只包含序号和消息体，校验通过时无需采用后续汉明纠错</td>
</tr>
<tr>
<td style="text-align:center">6</td>
<td style="text-align:center">26~27</td>
<td style="text-align:center">[15:0]</td>
<td style="text-align:center">汉明码</td>
<td style="text-align:left">校验不通过时，可以使用汉明纠错，暂不启用</td>
</tr>
<tr>
<td style="text-align:center">7</td>
<td style="text-align:center">28~31</td>
<td style="text-align:center">[31:0]</td>
<td style="text-align:center">帧尾</td>
<td style="text-align:left">固定值0x3BA7A579（可自定义）</td>
</tr>
</tbody>
</table>
</div>
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<div class="md-toc">
<div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#修订记录" class="md-toc-link">
<p>修订记录</p>
</a></div><div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#1-引言" class="md-toc-link">
<ol>
<li>引言</li>
</ol>
</a></div><div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#2-transaction数据格式" class="md-toc-link">
<ol start="2">
<li>Transaction数据格式</li>
</ol>
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<summary class="md-toc-link-wrapper">
<a href="#3-tcp与udp协议" class="md-toc-link"><ol start="3">
<li>TCP与UDP协议</li>
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</a>
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<div>
<div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:42px">
<a href="#31-tcp数据协议" class="md-toc-link">
<p>3.1 TCP数据协议</p>
</a></div><div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:42px">
<a href="#32-udp数据协议" class="md-toc-link">
<p>3.2 UDP数据协议</p>
</a></div>
</div>
</details>
<div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#4-aurora-64b66b协议" class="md-toc-link">
<ol start="4">
<li>Aurora 64b/66b协议</li>
</ol>
</a></div><div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#5-uart协议" class="md-toc-link">
<ol start="5">
<li>UART协议</li>
</ol>
</a></div><div class="md-toc-link-wrapper" style="padding:0;;display:list-item;list-style:square;margin-left:18px">
<a href="#6-全局反馈板间数据协议gfp" class="md-toc-link">
<ol start="6">
<li>全局反馈板间数据协议（GFP）</li>
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