<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[T113_longan_sdk  uboot 没有打印启动日志]]></title><description><![CDATA[<p dir="auto">问题：T113_longan_sdk  uboot 启动的时候，串口没有打印。但是linux kernel启动的时候有打印输出。<br />
上电之后会延迟一会，然后打印下面内容。</p>
<pre><code>[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.4.61
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: sun8iw20
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0x47000000```</code></pre>
]]></description><link>https://bbs.aw-ol.com/topic/1748/t113_longan_sdk-uboot-没有打印启动日志</link><generator>RSS for Node</generator><lastBuildDate>Thu, 16 Apr 2026 02:38:12 GMT</lastBuildDate><atom:link href="https://bbs.aw-ol.com/topic/1748.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 13 Jul 2022 06:11:24 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to T113_longan_sdk  uboot 没有打印启动日志 on Fri, 22 Jul 2022 09:13:00 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://bbs.aw-ol.com/uid/914">@honey130602</a><br />
之前在修改复用的时候，这个标号没对。现在已经修改正确了。</p>
<pre><code class="language-uart_debug_port">uart_debug_tx   = port:PB06&lt;7&gt;&lt;1&gt;&lt;default&gt;&lt;default&gt;
uart_debug_rx   = port:PB07&lt;7&gt;&lt;1&gt;&lt;default&gt;&lt;default&gt;```</code></pre>
]]></description><link>https://bbs.aw-ol.com/post/8806</link><guid isPermaLink="true">https://bbs.aw-ol.com/post/8806</guid><dc:creator><![CDATA[captain]]></dc:creator><pubDate>Fri, 22 Jul 2022 09:13:00 GMT</pubDate></item><item><title><![CDATA[Reply to T113_longan_sdk  uboot 没有打印启动日志 on Fri, 22 Jul 2022 07:52:36 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="https://bbs.aw-ol.com/uid/1486">@captain</a> uboot串口确定和kernel的一致吗</p>
]]></description><link>https://bbs.aw-ol.com/post/8798</link><guid isPermaLink="true">https://bbs.aw-ol.com/post/8798</guid><dc:creator><![CDATA[Honey130602]]></dc:creator><pubDate>Fri, 22 Jul 2022 07:52:36 GMT</pubDate></item></channel></rss>