feature-complete-ish
Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
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css/theme/teardown19.css
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308
css/theme/teardown19.css
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/**
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* League theme for reveal.js.
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*
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* This was the default theme pre-3.0.0.
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*
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* Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
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*/
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@import url(../../lib/font/league-gothic/league-gothic.css);
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@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
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/*********************************************
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* GLOBAL STYLES
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*********************************************/
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body {
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background: #1c1e20;
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background: -moz-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
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background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #555a5f), color-stop(100%, #1c1e20));
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background: -webkit-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
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background: -o-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
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background: -ms-radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
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background: radial-gradient(center, circle cover, #555a5f 0%, #1c1e20 100%);
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background-color: #2b2b2b; }
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.reveal .footer {
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position: absolute;
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bottom: 1em;
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right: 2em;
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text-align: right;
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font-size: 0.5em;
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width: 100%;
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height: 96px;
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/*background-image: url("lca2019-logo.svg");*/
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background-repeat: no-repeat;
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display: flex;
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justify-content: flex-end;
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align-items: flex-end;
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z-index: 1;
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}
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.reveal .footer .url {
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position: absolute;
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padding-bottom: 30px;
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}
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.reveal .footer .theme {
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padding-right: 80px;
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}
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.reveal .footer .hashtag {
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padding-right: 80px;
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}
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.reveal {
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font-family: "Lato", sans-serif;
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font-size: 40px;
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font-weight: normal;
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color: #eee; }
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::selection {
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color: #fff;
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background: #FF5E99;
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text-shadow: none; }
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::-moz-selection {
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color: #fff;
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background: #FF5E99;
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text-shadow: none; }
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.reveal .slides section,
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.reveal .slides section > section {
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line-height: 1.3;
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font-weight: inherit; }
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/*********************************************
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* HEADERS
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*********************************************/
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.reveal h1,
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.reveal h2,
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.reveal h3,
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.reveal h4,
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.reveal h5,
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.reveal h6 {
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margin: 0 0 20px 0;
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color: #eee;
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font-family: "League Gothic", Impact, sans-serif;
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font-weight: normal;
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line-height: 1.2;
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letter-spacing: normal;
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text-transform: uppercase;
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text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.2);
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word-wrap: break-word; }
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.reveal h1 {
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font-size: 3.77em; }
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.reveal h2 {
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font-size: 2.11em; }
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.reveal h3 {
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font-size: 1.55em; }
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.reveal h4 {
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font-size: 1em; }
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.reveal h1 {
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text-shadow: 0 1px 0 #ccc, 0 2px 0 #c9c9c9, 0 3px 0 #bbb, 0 4px 0 #b9b9b9, 0 5px 0 #aaa, 0 6px 1px rgba(0, 0, 0, 0.1), 0 0 5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 5px rgba(0, 0, 0, 0.2), 0 5px 10px rgba(0, 0, 0, 0.25), 0 20px 20px rgba(0, 0, 0, 0.15); }
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/*********************************************
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* OTHER
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*********************************************/
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.reveal p {
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margin: 20px 0;
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line-height: 1.3; }
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/* Ensure certain elements are never larger than the slide itself */
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.reveal img,
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.reveal video,
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.reveal iframe {
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max-width: 95%;
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max-height: 95%; }
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.reveal strong,
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.reveal b {
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font-weight: bold; }
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.reveal em {
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font-style: italic; }
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.reveal ol,
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.reveal dl,
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.reveal ul {
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display: inline-block;
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text-align: left;
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margin: 0 0 0 1em; }
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.reveal ol {
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list-style-type: decimal; }
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.reveal ul {
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list-style-type: disc; }
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.reveal ul ul {
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list-style-type: square; }
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.reveal ul ul ul {
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list-style-type: circle; }
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.reveal ul ul,
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.reveal ul ol,
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.reveal ol ol,
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.reveal ol ul {
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display: block;
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margin-left: 40px; }
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.reveal dt {
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font-weight: bold; }
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.reveal dd {
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margin-left: 40px; }
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.reveal blockquote {
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display: block;
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position: relative;
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width: 70%;
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margin: 20px auto;
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padding: 5px;
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font-style: italic;
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background: rgba(255, 255, 255, 0.05);
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box-shadow: 0px 0px 2px rgba(0, 0, 0, 0.2); }
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.reveal blockquote p:first-child,
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.reveal blockquote p:last-child {
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display: inline-block; }
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.reveal q {
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font-style: italic; }
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.reveal pre {
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display: block;
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position: relative;
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width: 90%;
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margin: 20px auto;
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text-align: left;
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font-size: 0.55em;
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font-family: monospace;
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line-height: 1.2em;
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word-wrap: break-word;
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box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.3); }
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.reveal code {
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font-family: monospace;
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text-transform: none; }
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.reveal pre code {
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display: block;
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padding: 5px;
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overflow: auto;
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max-height: 400px;
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word-wrap: normal; }
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.reveal table {
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margin: auto;
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border-collapse: collapse;
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border-spacing: 0; }
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.reveal table th {
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font-weight: bold; }
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.reveal table th,
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.reveal table td {
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text-align: left;
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padding: 0.2em 0.5em 0.2em 0.5em;
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border-bottom: 1px solid; }
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.reveal table th[align="center"],
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.reveal table td[align="center"] {
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text-align: center; }
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.reveal table th[align="right"],
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.reveal table td[align="right"] {
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text-align: right; }
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.reveal table tbody tr:last-child th,
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.reveal table tbody tr:last-child td {
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border-bottom: none; }
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.reveal sup {
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vertical-align: super;
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font-size: smaller; }
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.reveal sub {
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vertical-align: sub;
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font-size: smaller; }
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.reveal small {
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display: inline-block;
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font-size: 0.6em;
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line-height: 1.2em;
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vertical-align: top; }
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.reveal small * {
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vertical-align: top; }
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/*********************************************
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* LINKS
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*********************************************/
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.reveal a {
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color: #13DAEC;
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text-decoration: none;
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-webkit-transition: color .15s ease;
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-moz-transition: color .15s ease;
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transition: color .15s ease; }
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.reveal a:hover {
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color: #71e9f4;
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text-shadow: none;
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border: none; }
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.reveal .roll span:after {
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color: #fff;
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background: #0d99a5; }
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/*********************************************
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* IMAGES
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*********************************************/
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.reveal section img {
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margin: 15px 0px;
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background: rgba(255, 255, 255, 0.12);
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border: 4px solid #eee;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.15); }
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.reveal section img.plain {
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border: 0;
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box-shadow: none; }
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.reveal a img {
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-webkit-transition: all .15s linear;
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-moz-transition: all .15s linear;
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transition: all .15s linear; }
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.reveal a:hover img {
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background: rgba(255, 255, 255, 0.2);
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border-color: #13DAEC;
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box-shadow: 0 0 20px rgba(0, 0, 0, 0.55); }
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/*********************************************
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* NAVIGATION CONTROLS
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*********************************************/
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.reveal .controls {
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color: #13DAEC; }
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/*********************************************
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* PROGRESS BAR
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*********************************************/
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.reveal .progress {
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background: rgba(0, 0, 0, 0.2);
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color: #13DAEC; }
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.reveal .progress span {
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-webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
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-moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
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transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
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/*********************************************
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* PRINT BACKGROUND
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*********************************************/
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@media print {
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.backgrounds {
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background-color: #2b2b2b; } }
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BIN
img/under-construction.gif
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BIN
img/under-construction.gif
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After Width: | Height: | Size: 17 KiB |
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index.html
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index.html
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<link rel="stylesheet" href="css/reveal.css">
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<link rel="stylesheet" href="css/reveal.css">
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<link rel="stylesheet" href="css/theme/solarized.css" id="theme">
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<link rel="stylesheet" href="css/theme/teardown19.css" id="theme">
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<!-- Theme used for syntax highlighting of code -->
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<!-- Theme used for syntax highlighting of code -->
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<link rel="stylesheet" href="lib/css/zenburn.css">
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<link rel="stylesheet" href="lib/css/zenburn.css">
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<p>
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<p>
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Fomu aims to be accessable on three levels:
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Fomu aims to be accessable on three levels:
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<ol>
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<ol>
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<li>Python / Interpreted</li>
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<li>Python / Interpreter</li>
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<li>RISC-V</li>
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<li>RISC-V / C</li>
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<li>Verilog / FPGA</li>
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<li>FPGA / HDL</li>
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</ol>
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</ol>
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</p>
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</p>
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</section>
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</section>
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<ol>
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<ol>
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<li>What do I need to get started?</li>
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<li>What do I need to get started?</li>
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<li>What is an FPGA, and what is Fomu?</li>
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<li>What is an FPGA, and what is Fomu?</li>
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<li>What makes Fomu special?</li>
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<li>Working with Fomu using Python, RISC-V, and HDL</li>
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<li>What can I do with Fomu?</li>
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</ol>
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</ol>
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</section>
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</section>
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FPGAs are measured in resources called LUTs or LCs.
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FPGAs are measured in resources called LUTs or LCs.
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</p>
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</p>
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-->
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-->
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</section>
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</section>
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<section>
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<h2>What is an FPGA?</h2>
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<table style="transform: scale(.80) translate(-15%)">
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<tr>
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<th></th>
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<th>0</th>
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<th>1</th>
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<th>2</th>
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<th>3</th>
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<th>4</th>
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<th>5</th>
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<th>6</th>
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<th>7</th>
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<th>8</th>
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<th>9</th>
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<th>10</th>
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<th>11</th>
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<th>12</th>
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<th>13</th>
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<th>14</th>
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<th>15</th>
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</tr>
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<tr>
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<td>IO0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>0</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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<td>1</td>
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</tr>
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<tr>
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<td>IO1</td>
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<td>0</td>
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<td>0</td>
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||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
</tr>
|
||||||
|
<tr>
|
||||||
|
<td>IO2</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>1</td>
|
||||||
|
</tr>
|
||||||
|
<tr>
|
||||||
|
<td>IO3</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
<td>0</td>
|
||||||
|
<td>1</td>
|
||||||
|
</tr>
|
||||||
|
<tr>
|
||||||
|
<td>O</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
<td>?</td>
|
||||||
|
</tr>
|
||||||
|
</table>
|
||||||
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>What is an FPGA?</h2>
|
<h2>What is an FPGA?</h2>
|
||||||
@ -177,6 +296,7 @@
|
|||||||
<li>2x I2C and 2x SPI</li>
|
<li>2x I2C and 2x SPI</li>
|
||||||
<li>8 16-bit DSP units</li>
|
<li>8 16-bit DSP units</li>
|
||||||
<li class="fragment highlight-blue">Warmboot capability</li>
|
<li class="fragment highlight-blue">Warmboot capability</li>
|
||||||
|
<li class="fragment highlight-blue">Open toolchain</li>
|
||||||
</ol>
|
</ol>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
@ -184,7 +304,7 @@
|
|||||||
<h2>What is Fomu?</h2>
|
<h2>What is Fomu?</h2>
|
||||||
<ul>
|
<ul>
|
||||||
<li>ICE40UP5K</li>
|
<li>ICE40UP5K</li>
|
||||||
<li>2MB flash memory</li>
|
<li>2MB QSPI flash memory</li>
|
||||||
<li>Four edge-plated pads</li>
|
<li>Four edge-plated pads</li>
|
||||||
<li>ESD protection</li>
|
<li>ESD protection</li>
|
||||||
<li>USB implemented in HDL</li>
|
<li>USB implemented in HDL</li>
|
||||||
@ -198,6 +318,11 @@
|
|||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
|
<h2>Fomu Block Design Diagram</h2>
|
||||||
|
<img data-src="img/fomu-block-diagram.png" alt="Fomu block diagram">
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
<h2>What is this PCB?</h2>
|
<h2>What is this PCB?</h2>
|
||||||
<img data-src="img/tomu-fpga-evt-1-small.jpg" alt="Fomu EVT1">
|
<img data-src="img/tomu-fpga-evt-1-small.jpg" alt="Fomu EVT1">
|
||||||
<h3>Fomu EVT1</h3>
|
<h3>Fomu EVT1</h3>
|
||||||
@ -234,11 +359,6 @@
|
|||||||
</ul>
|
</ul>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
|
||||||
<h2>Fomu Block Design Diagram</h2>
|
|
||||||
<img data-src="img/fomu-block-diagram.png" alt="Fomu block diagram">
|
|
||||||
</section>
|
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>Fomu SPI Flash Layout</h2>
|
<h2>Fomu SPI Flash Layout</h2>
|
||||||
<img data-src="img/fomu-memory-layout.png" alt="Fomu memory layout">
|
<img data-src="img/fomu-memory-layout.png" alt="Fomu memory layout">
|
||||||
@ -255,10 +375,23 @@
|
|||||||
<section>
|
<section>
|
||||||
<section>
|
<section>
|
||||||
<h2>Working with Fomu</h2>
|
<h2>Working with Fomu</h2>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>FAT Bootloader</h2>
|
||||||
|
<ul>
|
||||||
|
<li>Presents itself as a USB disk</li>
|
||||||
|
<li>Drag and drop files to program</li>
|
||||||
|
<li>Multiple interpreter support</li>
|
||||||
|
</ul>
|
||||||
|
<div>
|
||||||
|
<img data-src="img/under-construction.gif" class="fragment">
|
||||||
|
</div>
|
||||||
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>"fail safe" bootloader</h2>
|
<h2>"fail safe" bootloader</h2>
|
||||||
Using dfu
|
Device Firmware Update - <strong>DFU</strong>
|
||||||
</section>
|
</section>
|
||||||
<section>
|
<section>
|
||||||
<h2>Updating Fomu</h2>
|
<h2>Updating Fomu</h2>
|
||||||
@ -301,7 +434,7 @@ $ dfu-util -D new-image.dfu # Load new program</code></pre>
|
|||||||
<h2>Connecting via serial</h2>
|
<h2>Connecting via serial</h2>
|
||||||
<pre class="fragment"><code>screen /dev/cu.usbserial*</code></pre>
|
<pre class="fragment"><code>screen /dev/cu.usbserial*</code></pre>
|
||||||
<pre class="fragment"><code>screen /dev/ttyACM*</code></pre>
|
<pre class="fragment"><code>screen /dev/ttyACM*</code></pre>
|
||||||
<pre class="fragment"><code>Teraterm</code></pre>
|
<pre class="fragment"><code>Tera Term</code></pre>
|
||||||
<pre class="fragment"><code>MicroPython v1.10-296-g0a5a77a on 2019-06-18; fomu with vexriscv
|
<pre class="fragment"><code>MicroPython v1.10-296-g0a5a77a on 2019-06-18; fomu with vexriscv
|
||||||
>>></code></pre>
|
>>></code></pre>
|
||||||
</section>
|
</section>
|
||||||
@ -322,18 +455,21 @@ $ dfu-util -D new-image.dfu # Load new program</code></pre>
|
|||||||
<pre class="fragment"><code class="python" data-trim>>>> rgb.write_raw(0b0001, 255)
|
<pre class="fragment"><code class="python" data-trim>>>> rgb.write_raw(0b0001, 255)
|
||||||
>>> rgb.write_raw(0b1010, 14)
|
>>> rgb.write_raw(0b1010, 14)
|
||||||
>>> rgb.write_raw(0b1011, 1)
|
>>> rgb.write_raw(0b1011, 1)
|
||||||
>>>
|
>>> </code></pre>
|
||||||
</code></pre>
|
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>Future Work</h2>
|
<h2>Future Work</h2>
|
||||||
CircuitPython, etc.
|
<ul>
|
||||||
|
<li>CircuitPython</li>
|
||||||
|
<li>eLua</li>
|
||||||
|
<li>Espurino?</li>
|
||||||
|
</ul>
|
||||||
</section>
|
</section>
|
||||||
</section>
|
</section>
|
||||||
<section>
|
<section>
|
||||||
<section>
|
<section>
|
||||||
<h2>RISC-V code</h2>
|
<h2>RISC-V</h2>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
@ -346,17 +482,33 @@ $ dfu-util -D new-image.dfu # Load new program</code></pre>
|
|||||||
<img data-src="img/wishbone-usb-debug-bridge.png" alt="Wishbone bridge">
|
<img data-src="img/wishbone-usb-debug-bridge.png" alt="Wishbone bridge">
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>CPU is Optional</h2>
|
||||||
|
<ul>
|
||||||
|
<li>Multiple CPUs available</li>
|
||||||
|
<li>
|
||||||
|
<ul>
|
||||||
|
<li>VexRiscv</li>
|
||||||
|
<li>picorv32</li>
|
||||||
|
<li>lm32</li>
|
||||||
|
<li>...</li>
|
||||||
|
</ul>
|
||||||
|
</li>
|
||||||
|
<li>Also works just fine with no CPU</li>
|
||||||
|
</ul>
|
||||||
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>CSR Access</h2>
|
<h2>CSR Access</h2>
|
||||||
<pre><code class="cpp">#define CSR_VERSION_MAJOR_ADDR 0xe0007000L
|
<pre><code class="cpp">#define CSR_VERSION_MAJOR_ADDR 0xe0007000
|
||||||
#define CSR_VERSION_MAJOR_SIZE 1
|
#define CSR_VERSION_MAJOR_SIZE 1
|
||||||
#define CSR_VERSION_MINOR_ADDR 0xe0007004L
|
#define CSR_VERSION_MINOR_ADDR 0xe0007004
|
||||||
#define CSR_VERSION_MINOR_SIZE 1
|
#define CSR_VERSION_MINOR_SIZE 1
|
||||||
#define CSR_VERSION_REVISION_ADDR 0xe0007008L
|
#define CSR_VERSION_REVISION_ADDR 0xe0007008
|
||||||
#define CSR_VERSION_REVISION_SIZE 1
|
#define CSR_VERSION_REVISION_SIZE 1
|
||||||
#define CSR_VERSION_GITREV_ADDR 0xe000700cL
|
#define CSR_VERSION_GITREV_ADDR 0xe000700c
|
||||||
#define CSR_VERSION_GITREV_SIZE 4
|
#define CSR_VERSION_GITREV_SIZE 4
|
||||||
#define CSR_VERSION_GITEXTRA_ADDR 0xe000701cL
|
#define CSR_VERSION_GITEXTRA_ADDR 0xe000701c
|
||||||
#define CSR_VERSION_GITEXTRA_SIZE 2
|
#define CSR_VERSION_GITEXTRA_SIZE 2
|
||||||
</code></pre>
|
</code></pre>
|
||||||
Excerpt from <code>csr.h</code>
|
Excerpt from <code>csr.h</code>
|
||||||
@ -383,7 +535,35 @@ $ wishbone-tool --pid 0x5bf0 0xe0006800 0xff</code></pre>
|
|||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>Writing RISC-V Code</h2>
|
<h2>Writing RISC-V Code</h2>
|
||||||
|
<pre><code>$ make
|
||||||
|
CC ./src/main.c main.o
|
||||||
|
CC ./src/rgb.c rgb.o
|
||||||
|
CC ./src/time.c time.o
|
||||||
|
AS ./src/crt0-vexriscv.S crt0-vexriscv.o
|
||||||
|
LD riscv-blink.elf
|
||||||
|
OBJCOPY riscv-blink.bin
|
||||||
|
IHEX riscv-blink.ihex
|
||||||
|
$ </code></pre>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Modifying RISC-V Code</h2>
|
||||||
|
<pre><code class="diff">--- a/riscv-blink/src/main.c
|
||||||
|
+++ b/riscv-blink/src/main.c
|
||||||
|
@@ -38,6 +38,7 @@ void isr(void) {
|
||||||
|
void main(void) {
|
||||||
|
rgb_init();
|
||||||
|
irq_setie(0);
|
||||||
|
+ rgb_write((100000/64000)-1, LEDDBR);
|
||||||
|
int i = 0;
|
||||||
|
while (1) {
|
||||||
|
i++;</code></pre>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Other RISC-V Programs</h2>
|
||||||
|
riscv-usb-cdcacm: echo characters back after adding 1
|
||||||
|
</section>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
@ -392,18 +572,85 @@ $ wishbone-tool --pid 0x5bf0 0xe0006800 0xff</code></pre>
|
|||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>Yosys and NextPNR</h2>
|
<h2>Yosys and NextPNR</h2>
|
||||||
|
<ul>
|
||||||
|
<li>Timing Driven!</li>
|
||||||
|
</ul>
|
||||||
|
<pre><code>Max frequency for clock 'clk12': 24.63 MHz (PASS at 12.00 MHz)
|
||||||
|
Max frequency for clock 'clk48_1': 60.66 MHz (PASS at 48.00 MHz)
|
||||||
|
Max frequency for clock 'clkraw': 228.05 MHz (PASS at 48.00 MHz)</code></pre>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>Blinking an LED</h2>
|
<h2>Blinking an LED</h2>
|
||||||
|
<pre><code>$ make FOMU_REV=evt
|
||||||
|
...
|
||||||
|
20 warnings, 0 errors
|
||||||
|
PACK blink.bin
|
||||||
|
Built 'blink' for Fomu evt1
|
||||||
|
$ dfu-util -D blink.bin</code></pre>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
<h2>LiteX and MiGen</h2>
|
<h2>LiteX and MiGen</h2>
|
||||||
|
<ol>
|
||||||
|
<li>Define hardware in Python</li>
|
||||||
|
<li>Evaluate Python to produce netlist</li>
|
||||||
|
<li>Synthesize netlist to FPGA</li>
|
||||||
|
</ol>
|
||||||
</section>
|
</section>
|
||||||
|
|
||||||
<section>
|
<section>
|
||||||
|
<h2>lxbuildenv.py</h2>
|
||||||
|
<ol>
|
||||||
|
<li>Python environment using native interpreter</li>
|
||||||
|
<li>Very stable, good for hardware projects</li>
|
||||||
|
<li>Should work with system Python</li>
|
||||||
|
<li>Runs on Linux, Windows, Raspberry Pi</li>
|
||||||
|
</ol>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Why do we need a CPU?</h2>
|
||||||
|
<img data-src="img/litex-design.png" alt="LiteX Design">
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>What if we remove the CPU?</h2>
|
||||||
|
<ul>
|
||||||
|
<li>Workshop project has no CPU</li>
|
||||||
|
<li>DummyUsb module automatically enumerates</li>
|
||||||
|
<li>Wishbone Debug Bridge still accessible</li>
|
||||||
|
</ul>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Build Workshop Module</h2>
|
||||||
|
<pre><code>$ python3 workshop.py --placer heap
|
||||||
|
...
|
||||||
|
5 warnings, 0 errors
|
||||||
|
$ </code></pre>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Load onto Fomu</h2>
|
||||||
|
<pre><code>$ dfu-util -D build/gateware/top.bin
|
||||||
|
Download [=========================] 100% 104090 bytes
|
||||||
|
Download done.
|
||||||
|
$ </code></pre>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
|
<h2>Write a value to RAM</h2>
|
||||||
|
<pre><code>$ wishbone-tool --pid 0x5bf0 0x10000000
|
||||||
|
Value at 10000000: 0baf801e
|
||||||
|
$ wishbone-tool --pid 0x5bf0 0x10000000 0x12345678
|
||||||
|
$ wishbone-tool --pid 0x5bf0 0x10000000
|
||||||
|
Value at 10000000: 12345678
|
||||||
|
$ </code></pre>
|
||||||
|
</section>
|
||||||
|
|
||||||
|
<section>
|
||||||
<h2>VexRiscv</h2>
|
<h2>VexRiscv</h2>
|
||||||
</section>
|
</section>
|
||||||
</section>
|
</section>
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user