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    September 01

    U盘相关知识

    1.关于u盘的制作
    很简单，主控电路板（成本约5元）+闪存芯片（成本较高），焊在一起就行了，不过这个没尝试过，理论上是这样。
    2.量产工具
    有u盘以后，可以用量产工具刷u盘，有点类似rom的意思吧。用这个可以实现u盘模拟一个cdrom，我现在就用u盘模拟了cdrom重装windows。这个模拟好处是，不需要光盘介质，从网上下载iso以后直接弄到u盘上就可以了。不过，量产以后，u盘的读写速度有大幅下降，应该是原厂的设置做了很多优化处理，我们自己弄的不够好……有一个解决方法是把u盘转化成ntfs格式，速度会有些改善。
    convert <盘符> /fs:ntfs
    3.速度
    u盘的速度有三种：
    low speed:usb1.0
    full speed:usb1.1（现在也叫usb 2.0)
    high speed:usb 2.0（真正的2.0）
    这个high speed才是真正的速度。
    4.真伪
    假u盘，最郁闷的是容量不够，这个检测也简单，看能不能考得下这么多东西
    12:05 AM | Blog it

    Comments (5)

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