使用Beagle Bone Black和HDMI在LCD屏幕上显示无信号

@ Neha9是什么液晶面板？
几个问题，首先你的eeprom没有正确写入（BeagleBone Green没有HDMI），通过接地，TP4（在以太网和桶插头之间）很容易修复，然后以root身份运行：
dd if = / opt / scripts / device / bone / bbb-eeprom.dump = / sys / devices / platform / ocp / 44e0b000.i2c / i2c-0 / 0-0050 / eeprom
并重新启动...
接下来看看你的version.sh输出，u-boot（2016.03）太旧了，无法支持叠加：
赶紧跑：
debian @ beaglebone：〜$ cd / opt / scripts / tools / developers /
debian @ beaglebone：/ opt / scripts / tools / developers $ git pull
debian @ beaglebone：/ opt / scripts / tools / developers $ sudo ./update_bootloader.sh
debian @ beaglebone：/ opt / scripts / tools / developers $ sudo reboot
问候，



以下为原文

        @Neha9 what LCD panel is that?
Couple Problems, first your eeprom didn’t get properly written (BeagleBone Green doesn’t have HDMI) that is easy fixed via Grounding, TP4 (between ethernet and barrel plug) then run as root:
dd if=/opt/scripts/device/bone/bbb-eeprom.dump of=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eepromand rebooting…
Next looking at your output of version.sh the u-boot (2016.03) is too old to support overlays:
Just run:
debian@beaglebone:~$ cd /opt/scripts/tools/developers/debian@beaglebone:/opt/scripts/tools/developers$ git pulldebian@beaglebone:/opt/scripts/tools/developers$ sudo ./update_bootloader.shdebian@beaglebone:/opt/scripts/tools/developers$ sudo rebootRegards,

主席先生，谢谢你的答复，
它是7英寸HDMI Display-C 1024 * 600像素
对于以下答案，
首先，您的EEPROM没有正确写入（BeagleBone Green没有HDMI），可以通过接地，TP4（以太网和桶插头之间）轻松修复，然后以root身份运行：
dd if = / opt / scripts / device / bone / bbb-eeprom.dump = / sys / devices / platform / ocp / 44e0b000.i2c / i2c-0 / 0-0050 / eeprom
但是，正如我提到的那样，我正在使用Beaglebone Black，对于BBB来说，上述答案是否相同？



以下为原文

        Thank you, Sir, for the reply,
It is 7 inch HDMI Display-C 1024*600 pixels
For the following answer,
first, your EEPROM didn’t get properly written (BeagleBone Green doesn’t have HDMI) that is easily fixed via Grounding, TP4 (between ethernet and barrel plug) then run as root:
dd if=/opt/scripts/device/bone/bbb-eeprom.dump of=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eepromBut, as I mention I am using Beaglebone Black, is above answer same for BBB?

@ Neha9正确，该命令适用于BeagleBone Black。
我只是评论为什么hdmi没有工作，因为它被检测为绿色。
问候



以下为原文

        @Neha9 correct, that command is for the BeagleBone Black.  I was just commenting why hdmi didn’t work, as since it was detected as Green.
Regards

谢谢你，先生
它对我有用



以下为原文

        Thank you Sir
It worked for me

先生，
我试图在beagle bone black中使用CAN协议。
我推荐这个网站，
http://www.thomas-wedemeyer.de/beaglebone-canbus-python.html。
完成所有步骤后，我尝试运行代码，但无法获得输出，甚至无法理解它的错误以及它无法正常工作的原因。
如果有任何其他方式与beaglebone black进行CAN协议通信，请告诉我。



以下为原文

        Sir,
I am trying to use CAN protocol in beagle bone black. I referred this website,
http://www.thomas-wedemeyer.de/beaglebone-canbus-python.html.
After doing all the steps, I tried to run the code but not able to get output and even able to understand what is wrong with it and why it is not working.
Please let me know if any other way is there for CAN protocol communication with beaglebone black.

@ Neha9这些可以在beagleboard论坛上提出相当多的问题：
https://groups.google.com/forum/#!searchin/beagleboard/can|sort:date/beagleboard/fPk45dXWWVI/sA1oc01JDAAJ
在默认启动状态下，请确保使用“config-pin”正确复用can端口引脚。
或者使用u-boot overlay for can：
https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_.2Fboot.2FuEnv.txt_configuration  
github.com   
的BeagleBoard / bb.org的叠加/斑点/主/ SRC /臂/ BB-CAN1-00A0.dts
/ * 
*版权所有（C）2015 Robert Nelson 
* 
*连接器针脚P9.24上的CAN1虚拟斗篷P9.26 
* 
*此程序是免费软件;
您可以重新分发和/或修改 
*根据GNU通用公共许可证第2版的条款 
*由自由软件基金会发布。 
* /
/ DTS-V1 /;
/插入/;
＃包括
＃包括
/ {
compatible =“ti，beaglebone”，“ti，beaglebone-black”，“ti，beaglebone-green”;
/ *识别* /
part-number =“BB-CAN1”; 
此文件已被截断。
显示原创      
并确保有一些实际连接到can端口的东西。
问候，



以下为原文

        @Neha9 these can questions come up quite a bit on the beagleboard forum:
https://groups.google.com/forum/#!searchin/beagleboard/can|sort:date/beagleboard/fPk45dXWWVI/sA1oc01JDAAJ
In the default boot-up state, make sure you use “config-pin” to correctly mux the can port pins. Or using the u-boot overlay for can:
https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_.2Fboot.2FuEnv.txt_configuration
        github.com        beagleboard/bb.org-overlays/blob/master/src/arm/BB-CAN1-00A0.dts

/* * Copyright (C) 2015 Robert Nelson * * Virtual cape for CAN1 on connector pins P9.24 P9.26 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. *//dts-v1/;/plugin/;#include #include / {compatible = "ti,beaglebone", "ti,beaglebone-black", "ti,beaglebone-green";/* identification */part-number = "BB-CAN1";  This file has been truncated. show original                and make sure to have something actually connected to the can port.
Regards,

谢谢你，先生
它帮助我获得了CAN输出



以下为原文

        Thank You, Sir
It helped me to get CAN output