tobot 发表于 2021-8-8 01:10

【米尔MYS-8MMX】米尔MYS-8MMQ6-8E2D-180-C开箱报告二——加电

<div class='showpostmsg'><p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">板卡上带有标准的</font>USB<font face="宋体">接口和</font><font face="Calibri">1</font><font face="宋体">个</font><font face="Calibri">TypeC</font><font face="宋体">接口,均不能做电源输入。</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">接上电源后,板卡可直接连接</font>HDMI<font face="宋体">显示器点亮。</font></span></span></span></span></p>

<p style="text-align:justify"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图一、上电</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">进入系统后的界面</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图二、启动成功</font></span></span></span></span></p>

<p style="text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">缺省不能使用</font>USB<font face="宋体">的触屏功能,应该是驱动没有加载导致。尝试使用</font><font face="Calibri">Type-C</font><font face="宋体">接口连接显示器,似乎不支持。使用键盘鼠标,点开系统查看:</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图三、系统信息</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">因为没有安装</font>RTC<font face="宋体">电池,时间肯定是不对的。</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">按照手册要求,使用</font>3.3V<font face="宋体">的</font><font face="Calibri">uart</font><font face="宋体">线操作板卡。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图四、串口线操作</font></span></span></span></span></p>

<p style="text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">尝试用</font>5V<font face="宋体">串口线,没有打印回显。</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">测试其典型功率,实测在</font>1.6W<font face="宋体">左右。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图五、正常工作功率</font></span></span></span></span></p>

<p style="text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">输入命令:</font>echo mem&gt; /sys/power/state<font face="宋体">进入休眠模式一。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图六、休眠模式一</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">测试其典型功率,实测功率</font>0.23W<font face="宋体">左右。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图七、休眠模式一功率</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">输入命令:</font>echo freeze&gt; /sys/power/state<font face="宋体">进入休眠模式二。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图八、休眠模式二</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">测试其典型功率,实测功率</font>0.9W<font face="宋体">左右。</font></span></span></span></span></p>

<p align="center" style="text-align:center"> &nbsp;</p>

<p align="center" style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">图九、休眠模式二功率</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify">&nbsp;</p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">上述测试时,受电源影响,供电电压并不是标准</font>5V<font face="宋体">,且随功率增大,电压有所下降,三个功率值均小于手册给定数值,不排除因输入电压大于其测试值有关,根据手册描述:&ldquo; 供电电源按</font><font face="Calibri">5V</font><font face="宋体">标准设计,输入电压范围为</font><font face="Calibri">5V</font><font face="宋体">&plusmn;</font><font face="Calibri">10%</font><font face="宋体">。请注意如果使用非</font><font face="Calibri">5V</font><font face="宋体">输入电源,需要确保电源的带载能力足够。即单板消耗总功率不变,当你提供的电源电压越低,对电源的输出电流要求就会越大。&rdquo;输入电源可以在</font><font face="Calibri">4.5V~5.5V</font><font face="宋体">中波动,因此是符合功率要求的。</font></span></span></span></span></p>

<p style="text-align:justify">&nbsp;</p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">遗留问题:</font></span></span></span></span></p>

<p style="text-indent:21.0000pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">休眠后,串口失效,无法输入命令,暂时还不知道怎么从休眠模式恢复,采用断电方式重启设备。</font></span></span></span></span></p>

<p style="text-align:justify">3qwe</p>
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soso 发表于 2021-8-9 10:01

<p>期待解决问题,期待后续。</p>

freebsder 发表于 2021-8-10 10:06

<p>便携显示器,装备齐全!</p>
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