177 lines
10 KiB
HTML
177 lines
10 KiB
HTML
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<title>USB Interface</title>
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<title>CMSIS-Driver: USB Interface</title>
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<td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
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<td style="padding-left: 0.5em;">
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<div id="projectname">CMSIS-Driver
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 <span id="projectnumber">Version 2.05</span>
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</div>
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<div id="projectbrief">Peripheral Interface for Middleware and Application Code</div>
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</tr>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<div class="title">USB Interface</div> </div>
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<div class="contents">
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<p>USB common definitions (Driver_USB.h)
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<a href="#details">More...</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
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Content</h2></td></tr>
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<tr class="memitem:group__usbd__interface__gr"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbd__interface__gr.html">USB Device Interface</a></td></tr>
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<tr class="memdesc:group__usbd__interface__gr"><td class="mdescLeft"> </td><td class="mdescRight">Driver API for USB Device Peripheral (Driver_USBD.h) <br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:group__usbh__interface__gr"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__usbh__interface__gr.html">USB Host Interface</a></td></tr>
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<tr class="memdesc:group__usbh__interface__gr"><td class="mdescLeft"> </td><td class="mdescRight">Driver API for USB Host Peripheral (Driver_USBH.h) <br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:group__USB__speed"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__USB__speed.html">USB Speed</a></td></tr>
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<tr class="memdesc:group__USB__speed"><td class="mdescLeft"> </td><td class="mdescRight">USB Speed definitions. <br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:group__USB__endpoint__type"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__USB__endpoint__type.html">USB Endpoint Type</a></td></tr>
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<tr class="memdesc:group__USB__endpoint__type"><td class="mdescLeft"> </td><td class="mdescRight">USB Endpoint Type definitions. <br/></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
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<p>USB common definitions (Driver_USB.h) </p>
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<p>The <b>Universal Serial Bus</b> (USB) implements a serial bus for data exchange. It is a host controlled, plug-and-play interface between a USB host and USB devices using a tiered star topology. In microcontroller (MCU) applications, the interface is often used to connect a device to a host for data exchange or control purposes.</p>
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<ul>
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<li>Wikipedia offers more information about the <a href="http://en.wikipedia.org/wiki/Universal_Serial_Bus" target="_blank"><b>Universal Serial Bus</b></a>.</li>
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<li><p class="startli">The USB Implementers Forum provides detailed documentation under <a href="http://www.usb.org"><b>www.usb.org</b></a>.</p>
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<p class="startli">Block Diagram**</p>
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</li>
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</ul>
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<p>Typically only one USB Device is connected to a USB Host. If several USB devices must be connected to the same USB host, then the connection must be done via a USB hub.</p>
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<div class="image">
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<img src="USB_Schematics.png" alt="USB_Schematics.png"/>
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<div class="caption">
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Simplified USB Schema</div></div>
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<p>USB API**</p>
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<p>The following header files define the Application Programming Interface (API) for the USB interface:</p>
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<ul>
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<li><b>Driver_USB.h</b> : Common definitions of the USBD and USBH interface</li>
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<li><b>Driver_USBD.h</b> : Driver API for USB Device Peripheral</li>
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<li><b>Driver_USBH.h</b> : Driver API for USB Host Peripheral</li>
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</ul>
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<p>The driver implementation is a typical part of the Device Family Pack (DFP) that supports the peripherals of the microcontroller family.</p>
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<p>Driver Functions**</p>
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<p>The driver functions are published in the access struct as explained in <a class="el" href="theoryOperation.html#DriverFunctions">Common Driver Functions</a></p>
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<ul>
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<li><a class="el" href="group__usbd__interface__gr.html#structARM__DRIVER__USBD">ARM_DRIVER_USBD</a> : access struct for USBD driver functions</li>
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<li><a class="el" href="group__usbh__host__gr.html#structARM__DRIVER__USBH">ARM_DRIVER_USBH</a> : access struct for USBH driver functions </li>
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</ul>
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</div><!-- contents -->
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<li class="footer">Generated on Wed Feb 8 2017 10:20:45 for CMSIS-Driver by ARM Ltd. All rights reserved.
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