{"id":105093,"date":"2026-09-13T20:01:28","date_gmt":"2026-09-13T12:01:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/105093.html"},"modified":"2026-09-13T20:01:28","modified_gmt":"2026-09-13T12:01:28","slug":"%e8%a7%a3%e5%89%96usb%e6%8e%a7%e5%88%b6%e5%99%a8%e7%a7%bb%e6%a4%8d%ef%bc%9a%e4%bb%8everisilicon%e5%88%b0mindmotion%e7%9a%84%e5%a4%96%e7%a7%91%e6%89%8b%e6%9c%af%e5%bc%8f%e6%94%b9","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/105093.html","title":{"rendered":"\u89e3\u5256USB\u63a7\u5236\u5668\u79fb\u690d\uff1a\u4eceVeriSilicon\u5230MindMotion\u7684\u201c\u5916\u79d1\u624b\u672f\u5f0f\u201d\u6539\u9020"},"content":{"rendered":"

🔥\u4f5c\u8005\u7b80\u4ecb： \u4e00\u4e2a\u5e73\u51e1\u800c\u4e50\u4e8e\u5206\u4eab\u7684\u5c0f\u6bd4\u7279，\u4e2d\u5357\u6c11\u65cf\u5927\u5b66\u901a\u4fe1\u5de5\u7a0b\u4e13\u4e1a\u7814\u7a76\u751f，\u7814\u7a76\u65b9\u5411\u65e0\u7ebf\u8054\u90a6\u5b66\u4e60 🎬\u64c5\u957f\u9886\u57df：\u9a71\u52a8\u5f00\u53d1，\u5d4c\u5165\u5f0f\u8f6f\u4ef6\u5f00\u53d1，BSP\u5f00\u53d1 \u2744\ufe0f\u4f5c\u8005\u4e3b\u9875：\u4e00\u4e2a\u5e73\u51e1\u800c\u4e50\u4e8e\u5206\u4eab\u7684\u5c0f\u6bd4\u7279\u7684\u4e2a\u4eba\u4e3b\u9875 \u2728\u6536\u5f55\u4e13\u680f：\u901a\u4fe1\u534f\u8bae，\u672c\u4e13\u680f\u4e3a\u8bb0\u5f55\u9879\u76ee\u4e2d\u7528\u5230\u7684\u77e5\u8bc6\u70b9，\u4ee5\u53ca\u4e00\u4e9b\u786c\u4ef6\u5e38\u8bc6\u603b\u7ed3 \u6b22\u8fce\u5927\u5bb6\u70b9\u8d5e 👍 \u6536\u85cf \u2b50 \u52a0\u5173\u6ce8\u54e6！💖💖<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

🧩 \u89e3\u5256USB\u63a7\u5236\u5668\u79fb\u690d：\u4eceVeriSilicon\u5230MindMotion\u7684\u201c\u5916\u79d1\u624b\u672f\u5f0f\u201d\u6539\u9020<\/h2>\n

\u4e00\u53e5\u8bdd\u5b9a\u6027：\u8fd9\u4e0d\u662f\u7b80\u5355\u7684\u6362\u82af\u7247，\u800c\u662f\u628a\u4e00\u53f0\u201c\u81ea\u52a8\u6321\u6c7d\u8f66\u201d\u7684\u53d1\u52a8\u673a，\u79fb\u690d\u5230\u4e00\u53f0\u201c\u624b\u52a8\u6321\u8d5b\u8f66\u201d\u4e0a\u2014\u2014\u524d\u8005\u6cb9\u95e8\u5239\u8f66\u81ea\u52a8\u5339\u914d，\u540e\u8005\u6362\u6321\u79bb\u5408\u5168\u9760\u9a7e\u9a76\u5458（\u4ee3\u7801）\u7cbe\u51c6\u64cd\u4f5c\u3002<\/p>\n

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\u7b2c\u4e00\u7ae0：\u5148\u770b\u201c\u624b\u672f\u73b0\u573a\u201d\u2014\u2014\u4e24\u4efd\u4ee3\u7801\u63ed\u793a\u7684\u67b6\u6784DNA<\/h3>\n

\u63d0\u4f9b\u7684\u4e24\u4efdusbreg.c，\u6070\u597d\u662f\u4e00\u6b21\u771f\u5b9e\u7684\u751f\u4ea7\u7ea7\u79fb\u690d：\u4eceMM32L052（VeriSilicon USB IP）\u79fb\u690d\u5230MM32F0160（MindMotion MCF OTG IP）\u3002\u901a\u8fc7\u4ee3\u7801\u5dee\u5f02，\u6211\u4eec\u80fd\u53cd\u5411\u5de5\u7a0b\u51fa\u4e24\u4e2aIP\u6838\u5728\u8bbe\u8ba1\u54f2\u5b66\u4e0a\u7684\u6839\u672c\u4e0d\u540c\u3002<\/p>\n

🔬 \u4ee3\u7801\u89e3\u5256：\u4e00\u773c\u770b\u51fa\u67b6\u6784\u5dee\u5f02<\/h4>\n\n\u4ee3\u7801\u7279\u5f81MM32L052（VeriSilicon IP）MM32F0160（MindMotion BDT）<\/tr>\n\n\n\n\n\n\n
\u4e2d\u65ad\u5904\u7406<\/td>\n\u7ec6\u7c92\u5ea6\u4e2d\u65ad：EP_IN_NACK\u3001EP_OUT_ACK\u3001EP_SETUP\u3001EP_STALL<\/td>\n\u5355\u4e00USB_INT_TOKENDONE\u7edf\u4e00\u5904\u7406<\/td>\n<\/tr>\n
\u6570\u636e\u642c\u8fd0<\/td>\n\u76f4\u63a5FIFO\u8bfb\u5199：USB_EP0_FIFO<\/td>\nBDT\u8868 + DMA：\u9700\u8981\u586b\u5145ADDR\u3001BC\u3001OWN<\/td>\n<\/tr>\n
\u7aef\u70b9\u63a7\u5236<\/td>\n\u5199\u5bc4\u5b58\u5668\u89e6\u53d1：USB_EP0_CTRL = 0x80 + \u957f\u5ea6<\/td>\n\u624b\u52a8Arm BDT：usb_bdt_arm() + ep0_tx_busy<\/td>\n<\/tr>\n
\u6536\u53d1\u7f13\u51b2<\/td>\n\u786c\u4ef6FIFO\u81ea\u52a8\u7ba1\u7406<\/td>\n\u8f6f\u4ef6\u53cc\u7f13\u51b2：ep0_txbuf\u3001ep0_rxbuf + ep_next_odd<\/td>\n<\/tr>\n
\u603b\u7ebf\u590d\u4f4d<\/td>\n\u8f6f\u4ef6\u5199\u5bc4\u5b58\u5668：USB_USBRST<\/td>\n\u786c\u4ef6\u81ea\u52a8\u4ea7\u751fUSB_INT_RESET\u4e2d\u65ad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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\u7b2c\u4e8c\u7ae0：\u67b6\u6784\u5dee\u5f02\u7684\u201c\u7075\u9b42\u201d\u5bf9\u6bd4<\/h3>\n

🚗 VeriSilicon IP\u2014\u2014\u201c\u50bb\u74dc\u5f0f\u81ea\u52a8\u6321\u201d<\/h4>\n

\u8bbe\u8ba1\u54f2\u5b66：\u628a\u590d\u6742\u7684USB\u534f\u8bae\u6808\u786c\u4ef6\u5316，\u8ba9\u5f00\u53d1\u8005\u50cf\u64cd\u4f5cUART\u4e00\u6837\u7b80\u5355\u3002<\/p>\n

#mermaid-svg-qSCp3X40pBZ1O035{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-qSCp3X40pBZ1O035 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-qSCp3X40pBZ1O035 .error-icon{fill:#552222;}#mermaid-svg-qSCp3X40pBZ1O035 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-qSCp3X40pBZ1O035 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-qSCp3X40pBZ1O035 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-qSCp3X40pBZ1O035 .marker.cross{stroke:#333333;}#mermaid-svg-qSCp3X40pBZ1O035 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-qSCp3X40pBZ1O035 p{margin:0;}#mermaid-svg-qSCp3X40pBZ1O035 .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-qSCp3X40pBZ1O035 .cluster-label text{fill:#333;}#mermaid-svg-qSCp3X40pBZ1O035 .cluster-label span{color:#333;}#mermaid-svg-qSCp3X40pBZ1O035 .cluster-label span p{background-color:transparent;}#mermaid-svg-qSCp3X40pBZ1O035 .label text,#mermaid-svg-qSCp3X40pBZ1O035 span{fill:#333;color:#333;}#mermaid-svg-qSCp3X40pBZ1O035 .node rect,#mermaid-svg-qSCp3X40pBZ1O035 .node circle,#mermaid-svg-qSCp3X40pBZ1O035 .node ellipse,#mermaid-svg-qSCp3X40pBZ1O035 .node polygon,#mermaid-svg-qSCp3X40pBZ1O035 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-qSCp3X40pBZ1O035 .rough-node .label text,#mermaid-svg-qSCp3X40pBZ1O035 .node .label text,#mermaid-svg-qSCp3X40pBZ1O035 .image-shape .label,#mermaid-svg-qSCp3X40pBZ1O035 .icon-shape .label{text-anchor:middle;}#mermaid-svg-qSCp3X40pBZ1O035 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-qSCp3X40pBZ1O035 .rough-node .label,#mermaid-svg-qSCp3X40pBZ1O035 .node .label,#mermaid-svg-qSCp3X40pBZ1O035 .image-shape .label,#mermaid-svg-qSCp3X40pBZ1O035 .icon-shape .label{text-align:center;}#mermaid-svg-qSCp3X40pBZ1O035 .node.clickable{cursor:pointer;}#mermaid-svg-qSCp3X40pBZ1O035 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-qSCp3X40pBZ1O035 .arrowheadPath{fill:#333333;}#mermaid-svg-qSCp3X40pBZ1O035 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-qSCp3X40pBZ1O035 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-qSCp3X40pBZ1O035 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-qSCp3X40pBZ1O035 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-qSCp3X40pBZ1O035 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-qSCp3X40pBZ1O035 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-qSCp3X40pBZ1O035 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-qSCp3X40pBZ1O035 .cluster text{fill:#333;}#mermaid-svg-qSCp3X40pBZ1O035 .cluster span{color:#333;}#mermaid-svg-qSCp3X40pBZ1O035 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-qSCp3X40pBZ1O035 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-qSCp3X40pBZ1O035 rect.text{fill:none;stroke-width:0;}#mermaid-svg-qSCp3X40pBZ1O035 .icon-shape,#mermaid-svg-qSCp3X40pBZ1O035 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-qSCp3X40pBZ1O035 .icon-shape p,#mermaid-svg-qSCp3X40pBZ1O035 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-qSCp3X40pBZ1O035 .icon-shape .label rect,#mermaid-svg-qSCp3X40pBZ1O035 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-qSCp3X40pBZ1O035 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-qSCp3X40pBZ1O035 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-qSCp3X40pBZ1O035 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

<\/p>\n

VeriSilicon USB IP<\/p>\n

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<\/p>\n

CPU<\/p>\n

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<\/p>\n

\u786c\u4ef6FIFO<\/p>\n

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<\/p>\n

\u786c\u4ef6SIE\u5f15\u64ce<\/p>\n

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<\/p>\n

PHY\u7269\u7406\u5c42<\/p>\n

<\/span><\/p>\n

<\/p>\n

USB\u603b\u7ebf<\/p>\n

<\/span><\/p>\n

\u5173\u952e\u7279\u5f81：<\/p>\n

  • \u4e2d\u65ad\u4e30\u5bcc：\u6bcf\u4e2aUSB\u4e8b\u4ef6\u90fd\u6709\u72ec\u7acb\u4e2d\u65ad\u6807\u5fd7（SETUP\u3001IN_NACK\u3001OUT_ACK\u3001STALL），\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u8f6e\u8be2<\/li>\n
  • FIFO\u76f4\u901a：\u5199USB_EP0_FIFO\u5bc4\u5b58\u5668，\u6570\u636e\u81ea\u52a8\u8fdb\u5165\u53d1\u9001\u961f\u5217<\/li>\n
  • \u786c\u4ef6\u72b6\u6001\u673a：\u63a7\u5236\u4f20\u8f93\u7684SETUP\u2192DATA\u2192STATUS\u9636\u6bb5，\u786c\u4ef6\u81ea\u52a8\u7ba1\u7406<\/li>\n

    \u4ee3\u7801\u8bc1\u636e：<\/p>\n

    \/\/ L052: \u7b80\u5355！\u5199FIFO\u5c31\u53d1\u6570\u636e<\/span>
    \nwrite_mreg32<\/span>(<\/span>USB_EP0_FIFO,<\/span> data_byte)<\/span>;<\/span> \/\/ \u76f4\u63a5\u5199\u5230\u786c\u4ef6FIFO<\/span>
    \nwrite_mreg32<\/span>(<\/span>USB_EP0_CTRL,<\/span> 0x80<\/span> |<\/span> len)<\/span>;<\/span> \/\/ \u89e6\u53d1\u53d1\u9001<\/span><\/p>\n

    \n

    🏎\ufe0f MindMotion BDT\u2014\u2014\u201c\u624b\u52a8\u6321\u8d5b\u8f66\u201d<\/h4>\n

    \u8bbe\u8ba1\u54f2\u5b66：\u628a\u63a7\u5236\u6743\u5b8c\u5168\u4ea4\u7ed9\u8f6f\u4ef6，\u786c\u4ef6\u53ea\u505a\u201c\u65e0\u8111\u642c\u8fd0\u5de5\u201d\u3002<\/p>\n

    #mermaid-svg-h75hMG60ETXekxSe{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-h75hMG60ETXekxSe .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-h75hMG60ETXekxSe .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-h75hMG60ETXekxSe .error-icon{fill:#552222;}#mermaid-svg-h75hMG60ETXekxSe .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-h75hMG60ETXekxSe .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-h75hMG60ETXekxSe .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-h75hMG60ETXekxSe .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-h75hMG60ETXekxSe .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-h75hMG60ETXekxSe .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-h75hMG60ETXekxSe .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-h75hMG60ETXekxSe .marker{fill:#333333;stroke:#333333;}#mermaid-svg-h75hMG60ETXekxSe .marker.cross{stroke:#333333;}#mermaid-svg-h75hMG60ETXekxSe svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-h75hMG60ETXekxSe p{margin:0;}#mermaid-svg-h75hMG60ETXekxSe .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-h75hMG60ETXekxSe .cluster-label text{fill:#333;}#mermaid-svg-h75hMG60ETXekxSe .cluster-label span{color:#333;}#mermaid-svg-h75hMG60ETXekxSe .cluster-label span p{background-color:transparent;}#mermaid-svg-h75hMG60ETXekxSe .label text,#mermaid-svg-h75hMG60ETXekxSe span{fill:#333;color:#333;}#mermaid-svg-h75hMG60ETXekxSe .node rect,#mermaid-svg-h75hMG60ETXekxSe .node circle,#mermaid-svg-h75hMG60ETXekxSe .node ellipse,#mermaid-svg-h75hMG60ETXekxSe .node polygon,#mermaid-svg-h75hMG60ETXekxSe .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-h75hMG60ETXekxSe .rough-node .label text,#mermaid-svg-h75hMG60ETXekxSe .node .label text,#mermaid-svg-h75hMG60ETXekxSe .image-shape .label,#mermaid-svg-h75hMG60ETXekxSe .icon-shape .label{text-anchor:middle;}#mermaid-svg-h75hMG60ETXekxSe .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-h75hMG60ETXekxSe .rough-node .label,#mermaid-svg-h75hMG60ETXekxSe .node .label,#mermaid-svg-h75hMG60ETXekxSe .image-shape .label,#mermaid-svg-h75hMG60ETXekxSe .icon-shape .label{text-align:center;}#mermaid-svg-h75hMG60ETXekxSe .node.clickable{cursor:pointer;}#mermaid-svg-h75hMG60ETXekxSe .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-h75hMG60ETXekxSe .arrowheadPath{fill:#333333;}#mermaid-svg-h75hMG60ETXekxSe .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-h75hMG60ETXekxSe .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-h75hMG60ETXekxSe .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-h75hMG60ETXekxSe .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-h75hMG60ETXekxSe .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-h75hMG60ETXekxSe .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-h75hMG60ETXekxSe .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-h75hMG60ETXekxSe .cluster text{fill:#333;}#mermaid-svg-h75hMG60ETXekxSe .cluster span{color:#333;}#mermaid-svg-h75hMG60ETXekxSe div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-h75hMG60ETXekxSe .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-h75hMG60ETXekxSe rect.text{fill:none;stroke-width:0;}#mermaid-svg-h75hMG60ETXekxSe .icon-shape,#mermaid-svg-h75hMG60ETXekxSe .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-h75hMG60ETXekxSe .icon-shape p,#mermaid-svg-h75hMG60ETXekxSe .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-h75hMG60ETXekxSe .icon-shape .label rect,#mermaid-svg-h75hMG60ETXekxSe .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-h75hMG60ETXekxSe .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-h75hMG60ETXekxSe .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-h75hMG60ETXekxSe :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    <\/p>\n

    MindMotion BDT\u67b6\u6784<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    CPU<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    BDT\u63cf\u8ff0\u7b26\u8868\u5185\u5b58\u4e2d\u7684\u4efb\u52a1\u6e05\u5355<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    DMA\u5f15\u64ce<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u7cfb\u7edf\u5185\u5b58\u7f13\u51b2\u533a<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    SIE\u5f15\u64ce<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    PHY\u7269\u7406\u5c42<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    USB\u603b\u7ebf<\/p>\n

    <\/span><\/p>\n

    \u5173\u952e\u7279\u5f81：<\/p>\n

  • \u5355\u4e00\u4e2d\u65ad：\u6240\u6709\u4f20\u8f93\u5b8c\u6210\u7edf\u4e00\u89e6\u53d1USB_INT_TOKENDONE，\u8f6f\u4ef6\u5fc5\u987b\u8bfb\u53d6BDT\u5224\u65ad\u662f\u54ea\u4e2a\u7aef\u70b9\u3001\u4ec0\u4e48\u65b9\u5411<\/li>\n
  • BDT\u9a71\u52a8：\u6bcf\u6b21\u4f20\u8f93\u524d，\u5fc5\u987b\u586b\u5145BDT\u8868\u7684ADDR（\u7f13\u51b2\u533a\u5730\u5740）\u3001BC（\u5b57\u8282\u6570）\u3001OWN（\u6240\u6709\u6743\u6807\u5fd7）<\/li>\n
  • \u53cc\u7f13\u51b2\u4e52\u4e53：\u8f6f\u4ef6\u5fc5\u987b\u7ba1\u7406even\/odd\u4e24\u4e2a\u7f13\u51b2\u533a\u7684\u5207\u6362，\u7c7b\u4f3c\u201c\u53cc\u500d\u7f13\u51b2\u624b\u5199\u7b14\u8ff9\u201d<\/li>\n

    \u4ee3\u7801\u8bc1\u636e：<\/p>\n

    \/\/ F0160: \u590d\u6742！\u624b\u52a8\u586b\u5145BDT，\u624b\u52a8\u7ba1\u7406\u53cc\u7f13\u51b2<\/span>
    \nodd =<\/span> ep_next_odd[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>;<\/span> \/\/ \u9009\u5947\u5076\u7f13\u51b2<\/span>
    \nusb_bdt_arm<\/span>(<\/span>&<\/span>usb_bd_tbl.<\/span>Table[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>[<\/span>odd]<\/span>,<\/span>
    \n ep_data_n[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>,<\/span> \/\/ DATA0\/DATA1<\/span>
    \n usb_ep0_txbuf,<\/span> \/\/ \u7f13\u51b2\u533a\u5730\u5740<\/span>
    \n val &<\/span> 0x7f<\/span>)<\/span>;<\/span> \/\/ \u957f\u5ea6<\/span>
    \nep_next_odd[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span> ^=<\/span> 1<\/span>;<\/span> \/\/ \u5207\u6362\u5947\u5076<\/span>
    \nep0_tx_busy =<\/span> 1<\/span>;<\/span> \/\/ \u8f6f\u4ef6\u9501<\/span><\/p>\n

    \n

    \u7b2c\u4e09\u7ae0：\u6838\u5fc3\u673a\u5236\u6df1\u5ea6\u62c6\u89e3<\/h3>\n

    🔄 \u4e2d\u65ad\u5904\u7406\u673a\u5236\u5bf9\u6bd4<\/h4>\n\n\u4e8b\u4ef6VeriSilicon（L052）MindMotion（F0160）<\/tr>\n\n\n\n\n\n\n
    SETUP\u5305\u5230\u8fbe<\/td>\n\u72ec\u7acbEP_SETUP\u4e2d\u65ad<\/td>\nTOKDONE\u4e2d\u65ad\u4e2d\u8bfb\u53d6token\u7c7b\u578b\u5224\u65ad<\/td>\n<\/tr>\n
    IN\u6570\u636e\u53d1\u9001<\/td>\nEP_IN_NACK\u4e2d\u65ad<\/td>\nTOKDONE\u4e2d\u901a\u8fc7dir==IN\u5224\u65ad<\/td>\n<\/tr>\n
    OUT\u6570\u636e\u63a5\u6536<\/td>\nEP_OUT_ACK\u4e2d\u65ad<\/td>\nTOKDONE\u4e2d\u901a\u8fc7dir==OUT\u5224\u65ad<\/td>\n<\/tr>\n
    \u4f20\u8f93\u5b8c\u6210<\/td>\nEP_FINISH\u4e2d\u65ad<\/td>\n\u540c\u4e0aTOKDONE<\/td>\n<\/tr>\n
    STALL\u63e1\u624b<\/td>\nEP_STALL\u72ec\u7acb\u4e2d\u65ad<\/td>\nUSB_INT_STALL\u72ec\u7acb\u4e2d\u65ad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u6d41\u7a0b\u56fe\u5bf9\u6bd4：<\/p>\n

    #mermaid-svg-Vst1Psum4wQYuClY{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-Vst1Psum4wQYuClY .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-Vst1Psum4wQYuClY .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-Vst1Psum4wQYuClY .error-icon{fill:#552222;}#mermaid-svg-Vst1Psum4wQYuClY .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-Vst1Psum4wQYuClY .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-Vst1Psum4wQYuClY .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-Vst1Psum4wQYuClY .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-Vst1Psum4wQYuClY .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-Vst1Psum4wQYuClY .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-Vst1Psum4wQYuClY .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-Vst1Psum4wQYuClY .marker{fill:#333333;stroke:#333333;}#mermaid-svg-Vst1Psum4wQYuClY .marker.cross{stroke:#333333;}#mermaid-svg-Vst1Psum4wQYuClY svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-Vst1Psum4wQYuClY p{margin:0;}#mermaid-svg-Vst1Psum4wQYuClY .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-Vst1Psum4wQYuClY .cluster-label text{fill:#333;}#mermaid-svg-Vst1Psum4wQYuClY .cluster-label span{color:#333;}#mermaid-svg-Vst1Psum4wQYuClY .cluster-label span p{background-color:transparent;}#mermaid-svg-Vst1Psum4wQYuClY .label text,#mermaid-svg-Vst1Psum4wQYuClY span{fill:#333;color:#333;}#mermaid-svg-Vst1Psum4wQYuClY .node rect,#mermaid-svg-Vst1Psum4wQYuClY .node circle,#mermaid-svg-Vst1Psum4wQYuClY .node ellipse,#mermaid-svg-Vst1Psum4wQYuClY .node polygon,#mermaid-svg-Vst1Psum4wQYuClY .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-Vst1Psum4wQYuClY .rough-node .label text,#mermaid-svg-Vst1Psum4wQYuClY .node .label text,#mermaid-svg-Vst1Psum4wQYuClY .image-shape .label,#mermaid-svg-Vst1Psum4wQYuClY .icon-shape .label{text-anchor:middle;}#mermaid-svg-Vst1Psum4wQYuClY .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-Vst1Psum4wQYuClY .rough-node .label,#mermaid-svg-Vst1Psum4wQYuClY .node .label,#mermaid-svg-Vst1Psum4wQYuClY .image-shape .label,#mermaid-svg-Vst1Psum4wQYuClY .icon-shape .label{text-align:center;}#mermaid-svg-Vst1Psum4wQYuClY .node.clickable{cursor:pointer;}#mermaid-svg-Vst1Psum4wQYuClY .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-Vst1Psum4wQYuClY .arrowheadPath{fill:#333333;}#mermaid-svg-Vst1Psum4wQYuClY .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-Vst1Psum4wQYuClY .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-Vst1Psum4wQYuClY .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-Vst1Psum4wQYuClY .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-Vst1Psum4wQYuClY .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-Vst1Psum4wQYuClY .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-Vst1Psum4wQYuClY .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-Vst1Psum4wQYuClY .cluster text{fill:#333;}#mermaid-svg-Vst1Psum4wQYuClY .cluster span{color:#333;}#mermaid-svg-Vst1Psum4wQYuClY div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-Vst1Psum4wQYuClY .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-Vst1Psum4wQYuClY rect.text{fill:none;stroke-width:0;}#mermaid-svg-Vst1Psum4wQYuClY .icon-shape,#mermaid-svg-Vst1Psum4wQYuClY .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-Vst1Psum4wQYuClY .icon-shape p,#mermaid-svg-Vst1Psum4wQYuClY .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-Vst1Psum4wQYuClY .icon-shape .label rect,#mermaid-svg-Vst1Psum4wQYuClY .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-Vst1Psum4wQYuClY .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-Vst1Psum4wQYuClY .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-Vst1Psum4wQYuClY :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    <\/p>\n

    MindMotion：\u5355\u4e00TOKDONE<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    USB\u4e2d\u65ad<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5224\u65ad\u4e2d\u65ad\u7c7b\u578b<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TOKDONE \u2192 \u7edf\u4e00\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u8bfb\u53d6BDT\u83b7\u53d6\u7aef\u70b9\/\u65b9\u5411\/token<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6839\u636etoken\u5206\u53d1\u5230SETUP\/IN\/OUT<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    VeriSilicon：\u591a\u8def\u5e76\u884c\u4e2d\u65ad<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    USB\u4e2d\u65ad<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5224\u65ad\u4e2d\u65ad\u7c7b\u578b<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    EP_SETUP \u2192 SETUP\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    EP_IN_NACK \u2192 IN\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    EP_OUT_ACK \u2192 OUT\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    EP_STALL \u2192 STALL\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    \n

    📦 \u6570\u636e\u4f20\u8f93\u8def\u5f84\u5bf9\u6bd4<\/h4>\n

    VeriSilicon：\u5bc4\u5b58\u5668\u76f4\u901a\u6a21\u5f0f<\/p>\n

    \/\/ \u53d1\u9001\u6570\u636e：\u7b80\u5355\u5bc4\u5b58\u5668\u64cd\u4f5c<\/span>
    \nvoid<\/span> usb_send_ep0<\/span>(<\/span>uint8 *<\/span>data,<\/span> uint8 len)<\/span> {<\/span>
    \n for<\/span> (<\/span>i=<\/span>0<\/span>;<\/span> i<<\/span>len;<\/span> i++<\/span>)<\/span> {<\/span>
    \n write_mreg32<\/span>(<\/span>USB_EP0_FIFO,<\/span> data[<\/span>i]<\/span>)<\/span>;<\/span> \/\/ \u9010\u4e2a\u5199\u5165FIFO<\/span>
    \n }<\/span>
    \n write_mreg32<\/span>(<\/span>USB_EP0_CTRL,<\/span> 0x80<\/span> |<\/span> len)<\/span>;<\/span> \/\/ \u542f\u52a8\u53d1\u9001<\/span>
    \n}<\/span><\/p>\n

    MindMotion：BDT+DMA\u6a21\u5f0f<\/p>\n

    \/\/ \u53d1\u9001\u6570\u636e：\u590d\u6742\u7684BDT\u914d\u7f6e\u6d41\u7a0b<\/span>
    \nvoid<\/span> usb_send_ep0<\/span>(<\/span>uint8 *<\/span>data,<\/span> uint8 len)<\/span> {<\/span>
    \n \/\/ 1. \u5148\u62f7\u8d1d\u5230\u8f6f\u4ef6\u7f13\u51b2\u533a<\/span>
    \n memcpy<\/span>(<\/span>usb_ep0_txbuf,<\/span> data,<\/span> len)<\/span>;<\/span><\/p>\n

    \/\/ 2. \u9009\u54ea\u4e2aBDT\u69fd\u4f4d（even\/odd\u4e52\u4e53）<\/span>
    \n uint8 odd =<\/span> ep_next_odd[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>;<\/span><\/p>\n

    \/\/ 3. \u586b\u5145BDT\u63cf\u8ff0\u7b26<\/span>
    \n usb_bdt_arm<\/span>(<\/span>&<\/span>usb_bd_tbl.<\/span>Table[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>[<\/span>odd]<\/span>,<\/span>
    \n ep_data_n[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>,<\/span>
    \n usb_ep0_txbuf,<\/span>
    \n len)<\/span>;<\/span><\/p>\n

    \/\/ 4. \u5207\u6362\u4e0b\u4e00\u4e2a\u69fd\u4f4d<\/span>
    \n ep_next_odd[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span> ^=<\/span> 1<\/span>;<\/span><\/p>\n

    \/\/ 5. \u8f6f\u4ef6\u9501（\u9632\u91cd\u5165）<\/span>
    \n ep0_tx_busy =<\/span> 1<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \n

    🧠 \u63a7\u5236\u4f20\u8f93\u72b6\u6001\u673a\u5dee\u5f02<\/h4>\n

    USB\u63a7\u5236\u4f20\u8f93\u6709\u4e09\u4e2a\u5fc5\u7ecf\u9636\u6bb5：SETUP \u2192 DATA（\u53ef\u9009）\u2192 STATUS\u3002\u4e24\u4e2aIP\u5bf9\u72b6\u6001\u673a\u7684\u7ba1\u7406\u65b9\u5f0f\u622a\u7136\u4e0d\u540c：<\/p>\n\n\u9636\u6bb5VeriSilicon（\u786c\u4ef6\u7ba1\u7406）MindMotion（\u8f6f\u4ef6\u7ba1\u7406）<\/tr>\n\n\n\n\n
    SETUP<\/td>\n\u786c\u4ef6\u6536\u5230SETUP\u540e\u89e6\u53d1EP_SETUP\u4e2d\u65ad，\u540c\u65f6\u81ea\u52a8\u5207\u6362\u5230\u4e0b\u4e00\u4e2a\u72b6\u6001<\/td>\n\u8f6f\u4ef6\u5728TOKDONE\u4e2d\u68c0\u6d4b\u5230SETUP token\u540e，\u624b\u52a8\u914d\u7f6e\u4e0b\u4e00\u4e2aBDT\u63a5\u6536\/\u53d1\u9001<\/td>\n<\/tr>\n
    DATA<\/td>\n\u786c\u4ef6\u6839\u636ewLength\u81ea\u52a8\u51b3\u5b9aIN\/OUT\u4e8b\u52a1<\/td>\n\u8f6f\u4ef6\u6839\u636eSETUP\u5305\u5185\u5bb9，\u624b\u52a8\u586b\u5145BDT\u542f\u52a8IN\u6216OUT<\/td>\n<\/tr>\n
    STATUS<\/td>\n\u786c\u4ef6\u81ea\u52a8\u53d1\u9001\/\u63a5\u6536ZLP，\u5b8c\u6210\u540e\u89e6\u53d1EP_FINISH<\/td>\n\u8f6f\u4ef6\u5728DATA\u9636\u6bb5\u5b8c\u6210\u540e，\u624b\u52a8\u8c03\u7528usb_ep0_tx_zlp()\u53d1\u9001\u72b6\u6001\u5305<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u4ee3\u7801\u8bc1\u636e：\u79fb\u690d\u4ee3\u7801\u4e2d\u6700\u5fae\u5999\u7684\u5730\u65b9\u2014\u2014SETUP\u5904\u7406\u5b8c\u540e，\u9700\u8981\u624b\u52a8\u515c\u5e95\u53d1\u9001\u72b6\u6001ZLP：<\/p>\n

    \/\/ F0160\u79fb\u690d\u4ee3\u7801\u4e2d\u7684\u5173\u952e\u4fee\u8865：\u65e0\u6570\u636e\u9636\u6bb5\u7684ZLP\u515c\u5e95<\/span>
    \nif<\/span> (<\/span>(<\/span>wLength ==<\/span> 0<\/span>)<\/span> &&<\/span>
    \n !<\/span>USB_BufDesp_IsBusy<\/span>(<\/span>&<\/span>usb_bd_tbl.<\/span>Table[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>[<\/span>0<\/span>]<\/span>)<\/span> &&<\/span>
    \n !<\/span>USB_BufDesp_IsBusy<\/span>(<\/span>&<\/span>usb_bd_tbl.<\/span>Table[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>[<\/span>1<\/span>]<\/span>)<\/span>)<\/span>
    \n{<\/span>
    \n usb_ep0_tx_zlp<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u624b\u52a8\u53d1\u9001\u96f6\u957f\u5ea6\u72b6\u6001\u5305！<\/span>
    \n usb_running_ctrl_state =<\/span> USB_IDLE;<\/span>
    \n}<\/span><\/p>\n

    \u8fd9\u6bb5\u4ee3\u7801\u5728VeriSilicon\u7248\u672c\u4e2d\u6839\u672c\u4e0d\u9700\u8981，\u56e0\u4e3a\u786c\u4ef6\u81ea\u52a8\u5b8c\u6210\u4e86！<\/p>\n

    \n

    \u7b2c\u56db\u7ae0：\u79fb\u690d\u5de5\u4f5c\u91cf\u5168\u666f\u5bf9\u6bd4<\/h3>\n

    #mermaid-svg-sauGlcT3S7gYRZM1{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-sauGlcT3S7gYRZM1 .error-icon{fill:#552222;}#mermaid-svg-sauGlcT3S7gYRZM1 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-sauGlcT3S7gYRZM1 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-sauGlcT3S7gYRZM1 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-sauGlcT3S7gYRZM1 .marker.cross{stroke:#333333;}#mermaid-svg-sauGlcT3S7gYRZM1 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-sauGlcT3S7gYRZM1 p{margin:0;}#mermaid-svg-sauGlcT3S7gYRZM1 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    USB IP\u79fb\u690d\u5de5\u4f5c\u91cf\u5206\u5e03<\/p>\n

    \u4e2d\u65ad\u91cd\u6620\u5c04<\/p>\n

    BDT\u7ba1\u7406<\/p>\n

    \u63a7\u5236\u4f20\u8f93\u9002\u914d<\/p>\n

    \u53cc\u7f13\u51b2\u7ba1\u7406<\/p>\n

    \u8c03\u8bd5<\/p>\n

    20<\/p>\n

    18<\/p>\n

    16<\/p>\n

    14<\/p>\n

    12<\/p>\n

    10<\/p>\n

    8<\/p>\n

    6<\/p>\n

    4<\/p>\n

    2<\/p>\n

    0<\/p>\n

    \u5de5\u4f5c\u91cf（\u4eba\u5929）<\/p>\n\n\u79fb\u690d\u4efb\u52a1\u5de5\u4f5c\u91cf\u96be\u70b9\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n
    \u4e2d\u65ad\u91cd\u6620\u5c04<\/td>\n\u2b50\u2b50<\/td>\n\u628a\u7ec6\u7c92\u5ea6\u4e2d\u65ad\u5408\u5e76\u5230TOKDONE，\u9700\u8981\u91cd\u5199\u4e2d\u65ad\u5206\u53d1\u903b\u8f91<\/td>\n<\/tr>\n
    BDT\u7ba1\u7406<\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50<\/td>\n\u9700\u8981\u5b9e\u73b0usb_bdt_arm()\u3001\u5947\u5076\u5207\u6362\u3001OWN\u4f4d\u7ba1\u7406<\/td>\n<\/tr>\n
    \u63a7\u5236\u4f20\u8f93\u9002\u914d<\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50<\/td>\nSETUP\u2192DATA\u2192STATUS\u72b6\u6001\u673a\u5b8c\u5168\u7531\u8f6f\u4ef6\u7ef4\u62a4，\u5fc5\u987b\u5403\u900fUSB\u534f\u8bae<\/td>\n<\/tr>\n
    \u53cc\u7f13\u51b2\u7ba1\u7406<\/td>\n\u2b50\u2b50\u2b50\u2b50<\/td>\n\u8f6f\u4ef6\u7ef4\u62a4ep_next_odd\u3001ep_tx_busy\u7b49\u72b6\u6001\u6807\u5fd7<\/td>\n<\/tr>\n
    \u8c03\u8bd5<\/td>\n\u2b50\u2b50\u2b50\u2b50\u2b50<\/td>\nBDT\u8c03\u8bd5\u53ea\u80fd\u770b\u5185\u5b58+\u903b\u8f91\u5206\u6790\u4eea，\u95ee\u9898\u5b9a\u4f4d\u6781\u5176\u56f0\u96be<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    \u7b2c\u4e94\u7ae0：\u4e3a\u4ec0\u4e48MindMotion\u8981\u505a\u8fd9\u79cd\u201c\u53cd\u4eba\u6027\u201d\u8bbe\u8ba1？<\/h3>\n

    🎯 \u4e09\u4e2a\u6838\u5fc3\u539f\u56e0：<\/h4>\n
  • \u964d\u4f4e\u786c\u4ef6\u6210\u672c：\u786c\u4ef6FIFO\u548c\u590d\u6742\u72b6\u6001\u673a\u5360\u7528\u5927\u91cf\u7845\u9762\u79ef，BDT\u65b9\u5f0f\u7528\u8f6f\u4ef6\u903b\u8f91\u4ee3\u66ff\u786c\u4ef6\u903b\u8f91，\u82af\u7247\u66f4\u5c0f\u3001\u66f4\u4fbf\u5b9c<\/li>\n
  • \u6781\u81f4\u7075\u6d3b\u6027：\u5f00\u53d1\u8005\u53ef\u4ee5\u201c\u7ed5\u5f00\u201d\u6807\u51c6USB\u534f\u8bae，\u5b9e\u73b0\u81ea\u5b9a\u4e49\u884c\u4e3a（\u6bd4\u5982\u6a21\u62df\u590d\u5408\u8bbe\u5907\u3001\u975e\u6807\u51c6\u7aef\u70b9\u884c\u4e3a）<\/li>\n
  • DMA\u6548\u7387：BDT+DMA\u65b9\u5f0f\u5728\u5927\u6279\u91cf\u6570\u636e\u65f6\u6548\u7387\u66f4\u9ad8，CPU\u4e0d\u9700\u8981\u53c2\u4e0e\u6bcf\u4e2a\u5b57\u8282\u7684\u642c\u8fd0（VeriSilicon\u7684FIFO\u6a21\u5f0f\u5728\u9ad8\u901f\u4e0bCPU\u8d1f\u62c5\u91cd）<\/li>\n

    📊 \u9002\u7528\u573a\u666f\u5bf9\u6bd4\u96f7\u8fbe\u56fe<\/h4>\n

    #mermaid-svg-8iZ30Gk0WicpngJA{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-8iZ30Gk0WicpngJA .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-8iZ30Gk0WicpngJA .error-icon{fill:#552222;}#mermaid-svg-8iZ30Gk0WicpngJA .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-8iZ30Gk0WicpngJA .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-8iZ30Gk0WicpngJA .marker{fill:#333333;stroke:#333333;}#mermaid-svg-8iZ30Gk0WicpngJA .marker.cross{stroke:#333333;}#mermaid-svg-8iZ30Gk0WicpngJA svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-8iZ30Gk0WicpngJA p{margin:0;}#mermaid-svg-8iZ30Gk0WicpngJA :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    \u9ad8\u7ea7\u73a9\u5bb6\u4e13\u533a<\/p>\n

    \u901a\u7528\u9886\u57df<\/p>\n

    \u6d88\u8d39\u7535\u5b50<\/p>\n

    \u5feb\u901f\u539f\u578b<\/p>\n

    NXP LPC<\/p>\n

    STM32F1<\/p>\n

    MindMotion<\/p>\n

    VeriSilicon<\/p>\n

    \u5f00\u53d1\u6210\u672c\u4f4e –> \u5f00\u53d1\u6210\u672c\u9ad8<\/p>\n

    \u7075\u6d3b\u6027\u4f4e –> \u7075\u6d3b\u6027\u9ad8<\/p>\n

    "\u4e24\u79cdUSB IP\u9002\u7528\u573a\u666f"<\/p>\n

    \n

    \u7b2c\u516d\u7ae0：\u5b9e\u6218\u7ecf\u9a8c\u2014\u2014\u79fb\u690d\u4ee3\u7801\u4e2d\u6700\u5bb9\u6613\u8e29\u7684\u5751<\/h3>\n

    💣 \u57511：DATA0\/DATA1\u540c\u6b65<\/h4>\n

    VeriSilicon\u786c\u4ef6\u81ea\u52a8\u7ba1\u7406toggle，MindMotion\u9700\u8981\u8f6f\u4ef6\u7ef4\u62a4ep_data_n\u3002<\/p>\n

    \u79fb\u690d\u4ee3\u7801\u4e2d\u7684\u4fee\u8865：<\/p>\n

    \/\/ SETUP\u4e4b\u540e\u5fc5\u987b\u5f3a\u5236\u91cd\u7f6eDATA toggle\u4e3aDATA1<\/span>
    \nif<\/span> (<\/span>token ==<\/span> USB_TokenPid_SETUP)<\/span> {<\/span>
    \n ep_data_n[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_OUT]<\/span> =<\/span> 1<\/span>;<\/span>
    \n ep_data_n[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span> =<\/span> 1<\/span>;<\/span> \/\/ \u6ce8\u91ca：\u4fee\u590d\u4e86\u539f\u7248\u9057\u6f0f！<\/span>
    \n}<\/span><\/p>\n

    💣 \u57512：SET_ADDRESS\u7684\u5ef6\u8fdf\u751f\u6548<\/h4>\n

    USB\u534f\u8bae\u89c4\u5b9a：\u8bbe\u5907\u5728\u6536\u5230SET_ADDRESS\u8bf7\u6c42\u540e，\u5fc5\u987b\u5728STATUS\u9636\u6bb5\u7684ZLP\u53d1\u9001\u5b8c\u6210\u540e\u624d\u5207\u6362\u5730\u5740\u3002<\/p>\n

    MindMotion\u9700\u8981\u624b\u52a8\u5904\u7406：<\/p>\n

    if<\/span> (<\/span>(<\/span>size ==<\/span> 0<\/span>)<\/span> &&<\/span> (<\/span>usb_pending_addr !=<\/span> 0<\/span>)<\/span>)<\/span> {<\/span>
    \n USB_SetDeviceAddr<\/span>(<\/span>USB,<\/span> usb_pending_addr)<\/span>;<\/span> \/\/ \u5728IN\u5b8c\u6210\u540e\u624d\u8bbe\u7f6e\u5730\u5740<\/span>
    \n usb_pending_addr =<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    💣 \u57513：\u53cc\u7f13\u51b2\u6b8b\u7559\u6570\u636e<\/h4>\n

    BDT\u7684even\/odd\u53cc\u7f13\u51b2\u673a\u5236\u5728\u8fde\u7eed\u5feb\u901f\u4f20\u8f93\u65f6，\u5bb9\u6613\u628a\u65e7\u6570\u636e\u8bef\u53d1\u51fa\u53bb\u3002<\/p>\n

    \u79fb\u690d\u4ee3\u7801\u7684\u9632\u5fa1：<\/p>\n

    \/\/ \u6bcf\u6b21IN\u5b8c\u6210\u540e，\u7acb\u5373\u6e05\u9664\u53e6\u4e00\u4e2a\u7a7a\u95f2BDT\u7684OWN\u4f4d<\/span>
    \nusb_bd_tbl.<\/span>Table[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>[<\/span>ep_next_odd[<\/span>0<\/span>]<\/span>[<\/span>USB_Direction_IN]<\/span>]<\/span>.<\/span>OWN =<\/span> 0<\/span>;<\/span><\/p>\n

    💣 \u57514：\u603b\u7ebf\u590d\u4f4d\u540e\u7684\u72b6\u6001\u6062\u590d<\/h4>\n

    VeriSilicon\u7684\u786c\u4ef6\u590d\u4f4d\u4f1a\u81ea\u52a8\u91cd\u7f6e\u6240\u6709\u72b6\u6001，MindMotion\u7684BDT\u5728\u590d\u4f4d\u540e\u9700\u8981\u8f6f\u4ef6\u91cd\u65b0\u521d\u59cb\u5316\u3002<\/p>\n

    \u79fb\u690d\u4ee3\u7801\u7684\u5904\u7406：<\/p>\n

    static<\/span> void<\/span> usb_bus_reset_process<\/span>(<\/span>void<\/span>)<\/span> {<\/span>
    \n \/\/ \u6e05\u7a7a\u6240\u6709BDT<\/span>
    \n for<\/span> (<\/span>i=<\/span>0<\/span>;<\/span> i<<\/span>.<\/span>.<\/span>.<\/span>;<\/span> i++<\/span>)<\/span> {<\/span>
    \n usb_bd_tbl.<\/span>Index[<\/span>i]<\/span>.<\/span>HEAD =<\/span> 0<\/span>;<\/span>
    \n }<\/span>
    \n \/\/ \u91cd\u7f6e\u8f6f\u4ef6\u72b6\u6001<\/span>
    \n ep0_tx_busy =<\/span> 0<\/span>;<\/span>
    \n usb_state =<\/span> USB_STATE_DEFAULT;<\/span>
    \n \/\/ \u91cd\u65b0\u4f7f\u80fd\u7aef\u70b9<\/span>
    \n USB_EnableEndPoint<\/span>(<\/span>USB,<\/span> 0<\/span>,<\/span> USB_EndPointMode_Control,<\/span> true)<\/span>;<\/span>
    \n \/\/ \u9884\u63d0\u4ea4EP0 OUT\u63a5\u6536<\/span>
    \n usb_ep0_out_receive<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \n

    \u7b2c\u4e03\u7ae0：\u7ec8\u6781\u603b\u7ed3\u2014\u2014\u4e24\u5f20\u67b6\u6784\u7684\u201c\u62e9\u5076\u6307\u5357\u201d<\/h3>\n\n\u5982\u679c\u4f60\u2026\u9009VeriSilicon\u9009MindMotion BDT<\/tr>\n\n\n\n\n\n\n\n
    \u662f\u5e94\u7528\u5de5\u7a0b\u5e08，\u53ea\u60f3\u5feb\u901f\u5b9e\u73b0USB\u529f\u80fd<\/td>\n\u2705 \u6700\u4f73\u9009\u62e9<\/td>\n\u274c \u9700\u8981\u5403\u900f\u534f\u8bae<\/td>\n<\/tr>\n
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