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The following figure is the GPIO pin function diagram of Orange Pi One Plus:
<div>[[File:Orange-pi-3-img4.png|800px]]</div>
{| class="wikitable" style="text-align:center;width:1000px800px;background:#ffffff;"
|-
| colspan=3| Orange Pi One Plus GPIO pin correspondence table
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Enter the root password and press enter
<div style="padding-left:200px ;">[[File:Orange-pi-3-img5.png|600px]]</div>
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Select 0 Build system with uboot / kernel / rootfs / image to enter the interface of development board model selection.
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<div style="padding-left:200px ;">[[File:Orange-pi-3-img6.png|600px]]</div>
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Select orangepi oneplus, enter the kernel version selection interface after entering<br>
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<div style="padding-left:200px ;">[[File:Orange-pi-one-plus-img4.png|600px]]</div>
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At present, the orangepi oneplus development board supports the kernel code of '''Linux 4.9 and mainline.''' Select one of them and press Enter to start downloading the corresponding SDK source code.<br>
<div style="padding-left:200px ;">[[File:Orange-pi-3-img8.png|600px]]</div>
The downloaded source code will be stored in the same directory of OrangePi_Build<br>
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First you need to prepare a USB to TTL serial cable similar to the following figure:<br>
<div style="padding-left:200px ;">[[File:Orange-pi-3-img28.png|600px]]</div>
Connect the serial port cable as shown in the figure below. From the silk screen on the back of the board, you can see that the functions of the cables of different colors are as follows:<br>
* Black—GND
* Green-RX
* White-TX
<div style="padding-left:200px ;">[[File:Orange-pi-one-plus-img5.png|600px]]</div>
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=== '''Use on Windows platform''' ===
<div>[[File:Orange-pi-3-img30.png|800px]]</div>
Select application installation as administrator<br>
<div style="padding-left:200px ;">[[File:Orange-pi-3-img31.png|800px]]</div>
Wait for the installation to complete
<div style="padding-left:200px ;">[[File:Orange-pi-3-img32.png|800px]]</div>
* '''Download and install Putty'''<br>
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