| 一种用于Z-80系统的数字频率采样接口 |
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| 引用本文： | 郭俊杰,李大成.一种用于Z-80系统的数字频率采样接口[J].西安理工大学学报,1987(4). |
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| 作者姓名： | 郭俊杰 李大成 |
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| 作者单位： | 陕西机械学院精密仪器工程系，陕西机械学院精密仪器工程系 |
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| 摘 要： | 本文讨论一种数字频率采样接口。对于差动的双频率输入信号,应该完成采集、求差及累积运算,并按严格的时序向计算机进行数据传送。这些功能通过一个同步控制逻辑完成。对内同步控制方法及同步时钟周期确定的原则作了说明。作为一种可编程接口电路,多种功能的数据采集模式通过相应的接口软件来实现。
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| 关 键 词： | 双频 计数 锁存 采样接口 |
A Digital Frequency Sampling Interface for z-80 System |
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| Guo Junjie,Li Dacheng.A Digital Frequency Sampling Interface for z-80 System[J].Journal of Xi'an University of Technology,1987(4). |
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| Authors: | Guo Junjie Li Dacheng |
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| Abstract: | A digital frequency sampiirg interface is discussed in this paper. For a differential double frequency input signal, sampling, subtracting, accumulating and sending the data to the computer according to strict sequence should be fulfilled and they are accomplished by a synchronous controllogic.The inner-synchronous method and the selection principle of clock period are discussed, too. As a programmable interface circuit, its multifunctional data acquisition modes can be realized through corresponding interface software. |
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| Keywords: | double frequency count latch sampling interface |
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