mirror of
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154 lines
4.3 KiB
Markdown
154 lines
4.3 KiB
Markdown
# Module USB
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<el-tag effect="plain">SKU:M020</el-tag>
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<div class="product_pic"><img src="assets/img/product_pics/module/module_usb_01.webp"><img src="assets/img/product_pics/module/module_usb_02.webp"></div>
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## 描述
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**USB** 是M5Stack堆叠模块系列中的一款，USB驱动模块.集成了**MAX3421E**芯片，能够为任何带有SPI的系统添加USB主机或是外设功能接口.如果你想为你的设备添加标准的USB接口,这款USB模块会完美的解决方案.
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## 产品特性
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- 1x UAB 标准端口 A
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- 采用SPI通讯协议
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- 10x GPIO 引脚拓展
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- 拓展引脚 3v3, 5v, GND
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## 包含
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- 1x M5Stack USB 模块
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## 应用
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- USB 键盘记录
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- M5Core U盘读写器
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## 规格参数
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<table>
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<tr style="font-weight:bold">
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<td>规格</td>
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<td>参数</td>
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</tr>
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<tr>
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<td>净重</td>
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<td>13g</td>
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</tr>
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<tr>
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<td>毛重</td>
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<td>25g</td>
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</tr>
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<tr>
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<td>产品尺寸</td>
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<td>54.2*54.2*12.8mm</td>
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</tr>
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<tr>
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<td>包装尺寸</td>
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<td>60*57*17mm</td>
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</tr>
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</table>
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## MBUS引脚定义
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<img src="assets\img\product_pics\module\module_bus.webp"/>
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## 相关链接
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- **数据手册** - [MAX3421E](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/module/MAX3421E_en.pdf)
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## EasyLoader
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<img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/EasyLoader_logo.webp" width="100px" style="margin-top:20px">
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<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/Module/EasyLoader_USB.exe"><el-button type="primary">点击下载EasyLoader</el-button></a>
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>1.EasyLoader是一个简洁快速的程序烧录器，每一个产品页面里的EasyLoader都提供了一个与产品相关的案例程序，通过简单步骤将其烧录至主控，能够进行一系列的功能验证.
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>2.下载软件后，双击运行应用程序，将M5设备通过数据线连接至电脑,选择端口参数，点击 **"Burn"** 即可开始烧录
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?>3.EasyLoader烧录前需要安装有CP210X（USB驱动程序），[点击此处查看驱动安装教程](zh_CN/related_documents/M5Burner#安装串口驱动)
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## 案例程序
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[请点击此处下载Arduino示例程序](https://github.com/m5stack/M5Stack/tree/master/examples/Modules/USB_MAX3421E)
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**注意:**
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在编译该程序前，你需要[点击此处下载相应的USB库](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/USB/Arduino/Library)
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并将其解压缩到Arduino库路径中.(`C:\Users\<user_name>\Documents\Arduino\libraries`)
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<img src="assets/img/product_pics/module/module_usb_03.webp">
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<img src="assets/img/product_pics/module/module_usb_04.webp">
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下载演示程序 `usb_mouse.ino`
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将鼠标接入 USB 模块的 A 端口.
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* 按住左按键拖动绘制白线.
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* 按住右按键拖动绘制绿线.
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* 按中间滚轮按钮清除屏幕.
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```clike
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#include <M5Stack.h>
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#include <SPI.h>
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#include <Usb.h>
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#include <hiduniversal.h>
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#include <hidboot.h>
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#include <usbhub.h>
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#include "M5Mouse.h"
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// new objects
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USB Usb;
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USBHub Hub(&Usb);
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HIDBoot<USB_HID_PROTOCOL_MOUSE> HidMouse(&Usb);
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MouseRptParser Prs;
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// initialization
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M5.begin();
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Usb.Init();
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HidMouse.SetReportParser(0,(HIDReportParser*)&Prs);
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// handle event coming from usb device
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Usb.Task();
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if(Usb.getUsbTaskState() == USB_STATE_RUNNING)
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{
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Mouse_Pointer(mou_px, mou_py);
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mou_px = 0;
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mou_py = 0;
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/* left button pressed: draw white point */
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if (mou_button == 1)
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M5.Lcd.drawCircle(StaPotX, StaPotY, 1, WHITE);
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/* right button pressed: draw green point */
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if (mou_button == 2)
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M5.Lcd.drawCircle(StaPotX, StaPotY, 1, GREEN);
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/* middle button pressed: clear screen */
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if (mou_button == 4)
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M5.Lcd.fillScreen(BLACK);
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}
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```
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<img src="assets/img/product_pics/module/module_example/USB/example_module_usb_01.webp">
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## 原理图
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<img src="assets/img/product_pics/module/usb_sch.webp">
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## 相关视频
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**USB 的案例 - 读取 USB 设备**
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<video class="video_size" controls>
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<source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Blog/Twitch201902/USB%20Interface.mp4" type="video/mp4">
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</video>
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<script>
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var purchase_link = 'https://m5stack.com/collections/m5-module/products/usb-module';
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anchor_search(purchase_link);
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scrollFunc();
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</script> |