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→40pin SPI test
<li><p>In Linux systems, spi1 is turned off by default and needs to be turned on manually before it can be used. The opening steps are as follows:</p>
<ol style="list-style-type: lower-alpha;">
<li><p>First run '''orangepi-config'''. Ordinary users remember to add > '''sudo''' permissions.</p>
{| class="wikitable" style="width:800px;"
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<li><p>Then select '''Hardware'''</p>
<p>[[File:zero2w-img81.png]]</p></li>
<li><p>Then use the keyboard's arrow keys to locate the position shown > in the figure below, and then use the '''space''' to select the > dtbo configuration of the SPI you want to open.</p></li>
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<li><p>Then select '''<Back>'''</p>
<p>[[File:zero2w-img84.png]]</p></li>
<li><p>Then select '''<Reboot>'''to restart the system to make the > configuration take effect.</p>
<p>[[File:zero2w-img85.png]]</p></li></ol>
</li></ol>
