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在时间顺序控制微计算机系统中,需有准确的时间基准,并具有时间的显示功能。对于单板机,可用LED显示,用CTC计数器/定时器获得时间基准。但这种方法设备比较复杂,成本较高,并且不易调试。为此我们开发了一种简易微机控制系统,用电子表显示标准时间,并给出准确的时间代码,用微处理机(Z80CPU)提取这一代码,同时利用内部寄存器进行逻辑判断、数学运算以及对多开关量的控制等等。本系统具有较高的时间精度,又可以简化设备,降低成本,易于调试。在本文推荐的代码提取电路的基础上,根据实际需要,增加必
In chronological control of a microcomputer system, there must be an accurate time base and a time display function. For single-board machines, available LED display, use the CTC counter / timer to obtain the time base. However, this method is more complex equipment, high cost, and not easy to debug. To this end, we have developed a simple microcomputer control system that displays the standard time using an electronic watch and gives an accurate timecode, which is extracted using a microprocessor (Z80CPU), while utilizing internal registers for logic judgment, math operations, and Control of multiple switches and more. The system has high time precision, but also can simplify the equipment, reduce costs, easy to debug. On the basis of the code extraction circuit recommended in this paper, according to actual needs, increase must