nuta · June 14, 2024 01:03 · Jul 29, 2019 · Jul 29, 2019 · Jan 27, 2018
diff --git a/index.html b/index.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>esptool.js</title>
+
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/xterm/2.9.2/xterm.min.js" integrity="sha256-8rsVcpCnO6HdeJL84i0VdubjM42fjSmO8aONghdq3gc=" crossorigin="anonymous"></script>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/xterm/2.9.2/xterm.min.css" integrity="sha256-w69o8Y6P5VZjfYFmn2KlqMU7TUi2I+oWObi8FLlVZZg=" crossorigin="anonymous" />
+</head>
+
+<body>
+  <h1>esptool.js</h1>
+  <button id="flash-button" style="padding: 30px; font-size: 40px">Flash</button>
+  <div id="serial"></div>
+
+  <script src="esptool.js"></script>
+  <script>
+    const term = new Terminal()
+    term.open(document.querySelector("#serial"))
+    document.querySelector("#flash-button").addEventListener("click", () => {
+      const esp = new Esptool()
+      esp.connect().then(() => {
+        const receive = () => {
+          esp.serial.read().then(data => {
+            const s = String.fromCharCode.apply(null, new Uint8Array(data))
+            term.write(s)
+            receive()
+          })
+        }
+        receive()
+      })
+    })
+  </script>
+</body>
+</html>
diff --git a/index.js b/index.js
@@ -0,0 +1,21 @@
+const { Serial } = require("./serial")
+
+class Esptool {
+  constructor() {
+    this.serial = new Serial()
+  }
+
+  connect() {
+    return this.serial.connect().then(() => {
+      return this.serial.initialize()
+    })
+  }
+
+  async flash() {
+  }
+}
+
+if (window) {
+  // Web browser
+  window.Esptool = Esptool;
+}
diff --git a/package.json b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "esptool.js",
+  "version": "0.0.1",
+  "description": "Esptool implemented for Node.js and web browsers.",
+  "main": "lib/index.js",
+  "repository": "https://github.com/seiyanuta/esptool.js",
+  "author": "Seiya Nuta <nuta@seiya.me>",
+  "license": "(CC0-1.0 OR MIT)",
+  "devDependencies": {
+    "copy-webpack-plugin": "^4.3.1",
+    "webpack": "^3.10.0",
+    "webpack-dev-server": "^2.11.1"
+  }
+}
diff --git a/serial.js b/serial.js
@@ -0,0 +1,73 @@
+class Serial {
+  constructor() {
+    this.usb = null
+  }
+
+  connect() {
+    const filters = [
+     { 'vendorId': 0x10c4, 'productId': 0xea60 }
+    ]
+
+    return navigator.usb.getDevices().then(devices => {
+      if (devices.length > 0) {
+        const usb = devices[0]
+        this.usb = usb
+        return usb
+      } else {
+        return navigator.usb.requestDevice({ filters }).then(usb => {
+          this.usb = usb
+          return usb
+        })
+      }
+    })
+  }
+
+  initialize() {
+    return this.usb.open()
+      .then(() => {
+        return this.usb.selectConfiguration(1)
+      })
+      .then(() => {
+        console.log(this.usb)
+        return this.usb.claimInterface(0)
+      })
+      .then(() => {
+        return this.usb.controlTransferOut({
+          requestType: 'vendor',
+          recipient: 'device',
+          request: 0x00,
+          index: 0x00,
+          value: 0x01
+        })
+      })
+      .then(() => {
+        return this.usb.controlTransferOut({
+          requestType: 'vendor',
+          recipient: 'device',
+          request: 0x07,
+          index: 0x00,
+          value: 0x03 | 0x0100 | 0x0200
+        })
+      })
+      .then(() => {
+        return this.usb.controlTransferOut({
+          requestType: 'vendor',
+          recipient: 'device',
+          request: 0x01,
+          index: 0x00,
+          value: 0x384000 / 115200
+        })
+      })
+  }
+
+  async read() {
+    const r = await this.usb.transferIn(1, 64)
+    return new Uint8Array(r.data.buffer)
+  }
+
+  async write(data) {
+    await this.usb.transferIn(1, data)
+  }
+}
+
+module.exports = { Serial }
diff --git a/webpack.config.js b/webpack.config.js
@@ -0,0 +1,12 @@
+const path = require("path")
+
+module.exports = {
+  entry: {
+    app: ["./index.js"]
+  },
+  output: {
+    path: __dirname,
+    publicPath: "/",
+    filename: "esptool.js"
+  }
+};
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