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【鸿蒙内核】记录一次鸿蒙内核问题跟踪历程 - C/C++ - 清泛IT社区，为创新赋能！
...卓的内核是Linux，但是对Linux主分支影响太大，且逻辑和PC差别大，因此后来Google自己发展Android Linux内核分支，再在其基础上套上中间层Java的虚拟机。
2、小米、非纯血鸿蒙只是在开源Android中间层进行修改优化。
3、纯血鸿蒙则...
【研究中】MQTT接入OneNET物联网平台 - 创客硬件开发 - 清泛IT社区，为创新赋能！
网址：https://open.iot.10086.cn/
注册，及实名验证。https://baijiahao.baidu.com/s?id ... 0&wfr=spider&for=pc
非常的详细，就是我想要的步骤。
https://blog.csdn.net/xiaolong11 ... e/details/144806792
这个更详细。
Modbus硬件控制03——485串口助手控制继电器 - 创客硬件开发 - 清泛IT社区...
...RC校验，非常易于使用。
2.硬件连接
通过USB转485接入PC
3.测试步骤
发送字符串，一共两条指令
第一条是闭合继电器
第二条是断开继电器
mqtt协议一般最大支持订阅几个主题？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...他相关状态。超过限制可能导致客户端崩溃或订阅失败。PC/服务器端客户端： 这类客户端资源充足，通常可以轻松处理成千上万个订阅，其限制主要来自于与之连接的Broker端。
3. 系统资源无论Broker还是Client，订阅主题都会消耗...
Service Temporarily Unavailable Magento?
My application was working fine yesterday. I started my PC today. When I tried to start Magento I got this error message.
1...
Android SDK location
...e Android SDK Location. I have previously had Xamarin Studio working on my pc, and for some reason, I need to enter this again.
...
Learning assembly [closed]
... You don't understand assembly. You need to understand it. An opcode is a number. Debuggers will attempt to resolve opcodes to their instructions (sometimes its hard). You need to understand the basic instructions. Learning MASM will help you do this. No more needs to be said.
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How to get the current date without the time?
...wered Oct 25 '13 at 16:07
Moory PcMoory Pc
7641212 silver badges1111 bronze badges
...
What exactly is a C pointer if not a memory address?
... 1 = 1? (little-endian) or 65536 = 1? (big-endian). But on my 64-bit Linux PC with GCC 4.4:
$ c99 -O2 -Wall a.c && ./a.out
a.c: In function ‘main’:
a.c:6: warning: dereferencing pointer ‘p’ does break strict-aliasing rules
a.c:5: note: initialized from here
0 = 1?
GCC is kind eno...
“VT-x is not available” when i start my Virtual machine [closed]
...
VT-x can normally be disabled/enabled in your BIOS.
When your PC is just starting up you should press DEL (or something) to get to the BIOS settings. There you'll find an option to enable VT-technology (or something).
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