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 <span id="projectnumber">2.0.1-rc2</span>
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<div class="title">Control Protocols </div> </div>
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<div class="textblock"><p>There are two control modes, one is through UVC standard protocol, the other is through UVC custom protocol with extension unit.</p>
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<h2>Standard Protocol</h2>
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<table class="markdownTable">
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<tr class="markdownTableHead">
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<th class="markdownTableHeadLeft">Name </th><th class="markdownTableHeadLeft">Field </th><th class="markdownTableHeadLeft">Bytes </th><th class="markdownTableHeadLeft">Default </th><th class="markdownTableHeadLeft">Min </th><th class="markdownTableHeadLeft">Max </th><th class="markdownTableHeadLeft">Stored </th><th class="markdownTableHeadLeft">Flash Address </th><th class="markdownTableHeadLeft">Note </th></tr>
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<td class="markdownTableBodyLeft">Gain </td><td class="markdownTableBodyLeft">gain </td><td class="markdownTableBodyLeft">2 </td><td class="markdownTableBodyLeft">24 </td><td class="markdownTableBodyLeft">0 </td><td class="markdownTableBodyLeft">48 </td><td class="markdownTableBodyLeft">√ </td><td class="markdownTableBodyLeft">0x12 </td><td class="markdownTableBodyLeft">valid if manual-exposure </td></tr>
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<tr class="markdownTableBody" class="markdownTableRowEven">
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<td class="markdownTableBodyLeft">Brightness </td><td class="markdownTableBodyLeft">brightness/exposure_time </td><td class="markdownTableBodyLeft">2 </td><td class="markdownTableBodyLeft">120 </td><td class="markdownTableBodyLeft">0 </td><td class="markdownTableBodyLeft">240 </td><td class="markdownTableBodyLeft">√ </td><td class="markdownTableBodyLeft">0x14 </td><td class="markdownTableBodyLeft">valid if manual-exposure </td></tr>
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<tr class="markdownTableBody" class="markdownTableRowOdd">
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<td class="markdownTableBodyLeft">Contrast </td><td class="markdownTableBodyLeft">contrast/black_level_calibration </td><td class="markdownTableBodyLeft">2 </td><td class="markdownTableBodyLeft">127 </td><td class="markdownTableBodyLeft">0 </td><td class="markdownTableBodyLeft">255 </td><td class="markdownTableBodyLeft">√ </td><td class="markdownTableBodyLeft">0x10 </td><td class="markdownTableBodyLeft">valid if manual-exposure </td></tr>
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<h2>Custom Protocol</h2>
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<p>| Name | Field | Bytes | Default | Min | Max | Stored | Flash Address | Channel | Note | | :— | :-— | :-— | :---— | :– | :– | :--— | :---------— | :---— | :--— | | Frame rate | frame_rate | 2 | 25 | 10 | √ | 0x21 | XU_CAM_CTRL | values: {10,15,20,25,30,35,40,45,50,55} | | IMU frequency | imu_frequency | 2 | 200 | 100 | 500 | √ | 0x23 | XU_CAM_CTRL | values: {100,200,250,333,500} | | Exposure mode | exposure_mode | 1 | 0 | 0 | 1 | √ | 0x0F | XU_CAM_CTRL | 0: enable auto-exposure; 1: manual-exposure | | Max gain | max_gain | 2 | 48 | 0 | 48 | √ | 0x1D | XU_CAM_CTRL | valid if auto-exposure | | Max exposure time | max_exposure_time | 2 | 240 | 0 | 240 | √ | 0x1B | XU_CAM_CTRL | valid if auto-exposure | | Desired brightness | desired_brightness | 2 | 192 | 0 | 255 | √ | 0x19 | XU_CAM_CTRL | valid if auto-exposure | | IR control | ir_control | 1 | 0 | 0 | 160 | × | - | XU_CAM_CTRL | | | HDR mode | hdr_mode | 1 | 0 | 0 | 1 | √ | 0x1F | XU_CAM_CTRL | 0: 10-bit; 1: 12-bit | | Zero drift calibration | zero_drift_calibration | | - | - | - | × | - | XU_HALF_DUPLEX | | | Erase chip | erase_chip | | - | - | - | × | - | XU_HALF_DUPLEX | | </p>
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