齐齐哈尔大学学报（自然科学版）
齊齊哈爾大學學報（自然科學版）
제제합이대학학보（자연과학판）
JOURNAL OF QIQIHAR UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
6期
41-43
,共3页
单片机%计数器%多路检测
單片機%計數器%多路檢測
단편궤%계수기%다로검측
single chip microcomputer%counter%multiple detection
充分利用MCS-51系列单片机内部的已有资源，给出了利用中断系统和并行口扩展多通道计数器的两种方法，能够对较低频率的计数脉冲进行多路检测，成本低，实现简便，解决了单片机内部计数器数目有限的问题。
充分利用MCS-51繫列單片機內部的已有資源，給齣瞭利用中斷繫統和併行口擴展多通道計數器的兩種方法，能夠對較低頻率的計數脈遲進行多路檢測，成本低，實現簡便，解決瞭單片機內部計數器數目有限的問題。
충분이용MCS-51계렬단편궤내부적이유자원，급출료이용중단계통화병행구확전다통도계수기적량충방법，능구대교저빈솔적계수맥충진행다로검측，성본저，실현간편，해결료단편궤내부계수기수목유한적문제。
In the paper, the existing internal resources of serial MCS-51 microcomputer is adopted fully, and two counter methods were presented by introducing the interrupt system and the multi-channel expanded from parallel port. These methods carry out the multiplex detection of low-frequency count pulse, with the low cost and the easy implementation, which solve the problem of the limited number of single chip microcomputer internal counter.
