usb20 技术介绍--外文翻译.rar
usb20 技术介绍--外文翻译,abstract:we have noticed that the time is continuously updated in pc even though the computer is off. to realize thistask, we have interfaced two chips: microco...
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Abstract:
We have noticed that the time is continuously updated in PC even though the computer is off. To realize this
task, we have interfaced two chips: microcontroller (89C51) and real time clock (DS 12887). The result of
this is to access the data provided by RTC and displayed it on the 7-segment displays and by using these data
realizing timekeeping. Time keeping means by programming we can set alarm before many year. We can
build a programmer that will keep track of our programs. In addition of this we are provided one function
called day-light-saving, by using this feature we can change our settings in winter and summer accordingly.
摘要：
我们知道，时钟就算在电脑关闭状态下也是不断更新的。为了实现这个功能，我们要接上两个芯片：单片机（AT89C51）和实时时钟芯片（DS12887）。这样的结果是：访问RTC提供的数据并使用它们，使其显示在7段数码管上，从而实现计时。这种计时意味着我们可以通过程序在前几年就设置好报警。我们可以有一个程序员，让其跟踪我们的程序。此外，我们还提供一种叫做day-light-saving的功能，使用这种功能,我们可以改变设置,在冬季和夏季进行相应的调整。
We have noticed that the time is continuously updated in PC even though the computer is off. To realize this
task, we have interfaced two chips: microcontroller (89C51) and real time clock (DS 12887). The result of
this is to access the data provided by RTC and displayed it on the 7-segment displays and by using these data
realizing timekeeping. Time keeping means by programming we can set alarm before many year. We can
build a programmer that will keep track of our programs. In addition of this we are provided one function
called day-light-saving, by using this feature we can change our settings in winter and summer accordingly.
摘要：
我们知道，时钟就算在电脑关闭状态下也是不断更新的。为了实现这个功能，我们要接上两个芯片：单片机（AT89C51）和实时时钟芯片（DS12887）。这样的结果是：访问RTC提供的数据并使用它们，使其显示在7段数码管上，从而实现计时。这种计时意味着我们可以通过程序在前几年就设置好报警。我们可以有一个程序员，让其跟踪我们的程序。此外，我们还提供一种叫做day-light-saving的功能，使用这种功能,我们可以改变设置,在冬季和夏季进行相应的调整。
