文件名称:tushuguan
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--功能描述
--1 刷卡后产生与本人身份唯一对应的串行二进制码元序列，作为模拟系统的输入信号（此处不妨设为8位学生学号）。
--2 经过串并转换，序列变成一个8位二进制数。
--3 遍历预先存储在rom中的学号信息，逐一和这个8位数相比较，如果有相匹配的信息，显示欢迎字样（此处用一个高电平表示），同时打开栅栏门（也用一个高电平表示）。
-- Functional Descr iption- 1 credit card and identity generated only the corresponding element of the serial binary code sequence, as a simulation system of the input signal (in this case may be set to No. 8 students).- 2 after a string and conversion into a sequence of 8-bit binary number.- 3 pre-stored in the rom traversal of the Student ID information, one by one and compared to the 8-digit, if there is match the message that welcomes the word (here, said with a high), at the same time open the gate ( also expressed a high level).
--1 刷卡后产生与本人身份唯一对应的串行二进制码元序列，作为模拟系统的输入信号（此处不妨设为8位学生学号）。
--2 经过串并转换，序列变成一个8位二进制数。
--3 遍历预先存储在rom中的学号信息，逐一和这个8位数相比较，如果有相匹配的信息，显示欢迎字样（此处用一个高电平表示），同时打开栅栏门（也用一个高电平表示）。
-- Functional Descr iption- 1 credit card and identity generated only the corresponding element of the serial binary code sequence, as a simulation system of the input signal (in this case may be set to No. 8 students).- 2 after a string and conversion into a sequence of 8-bit binary number.- 3 pre-stored in the rom traversal of the Student ID information, one by one and compared to the 8-digit, if there is match the message that welcomes the word (here, said with a high), at the same time open the gate ( also expressed a high level).
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tushuguan.txt