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BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
...Frequency Band）；
BLE的市场定位是个体和民用，因此使用免费的ISM频段（频率范围是2.400-2.4835 GHz）；
为了同时支持多个设备，将整个频带分为40份，每份的带宽为2MHz，称作RF Channel。
所以经过上面的定义之后，可以推测出BLE的...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...的解决办法也许是：
通过学习前人的经验和开发的工具，不断的尝试和研究，找出更恰当的方法来避免、发现并处理它。对于一些常见的地方，我们可以避免，对于一些“隐藏”的地方，我们要发现它，发现以后就要及时...
setTimeout in for-loop does not print consecutive values [duplicate]
...
365
You have to arrange for a distinct copy of "i" to be present for each of the timeout functions...
Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
...f ($etime < 1)
{
return '0 seconds';
}
$a = array( 365 * 24 * 60 * 60 => 'year',
30 * 24 * 60 * 60 => 'month',
24 * 60 * 60 => 'day',
60 * 60 => 'hour',
60 =...
How to set up Android emulator proxy settings
...in PATH variable??. I am using Android Studio 1.0.1 and having proxy in my office system.
– Anil Bhaskar
Feb 13 '15 at 10:58
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pdf2htmlEX实现pdf转html - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...不提示 (default: 0)
--external-hint-tool <string> 字体外部提示工具 (overrides --auto-hint) (default: "")
--stretch-narrow-glyph <int> 伸展狭窄的字形，而不是填充 (default: 0)
--squeeze-wide-glyph <int> 收缩较宽的字形，而不是截断 (default: 1)
--over...
Github Windows 'Failed to sync this branch'
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OMG! I just moved to a new office space and my mapped drives no longer worked. But they had nothing to do with git or my working folders. I simply removed the mappings and then GitHub Desktop started working. This has to be a bug since it should not ev...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... 将小包组装成大包再交给内核协议栈等。可以使用ethtool工具来开启相应特性。
网卡驱动调优
默认的ixgbe配置是在是在高吞吐和低延时之际的权衡， 可以更改相应的硬编码的配置或者ethtool进行更改，对于本文我们的场景来说...
How to push different local Git branches to Heroku/master
...transport only, using the force flag is a reasonable practice.
source :- offical docs
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What is the difference between a User Control Library and a Custom Control Library?
...when implemented the correct way. Unfortunately my WPF reference is at the office currently so I can't check the implementation details.
– Mikko Rantanen
Apr 30 '09 at 16:37
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