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在数字仪数据采集系统中,其控制采集部件的核心是地址时序电路。WK 240数字地震仪借用DFS-V仪器的地址时序电路(AS板),用MC 68000微处理机及硬件线路实现了对AS板的控制,完成了地址时序板对4个摸拟箱的箱地址、板地址、道地址及各种控制指令的发送、返回数据的接收等诸多功能。从而实现了240道、2 ms数据采集。形成了一种应用于三维勘探十分便利的数字地震仪。本文着重从硬件和软件方面讨论了如何利用MC 68000微机及硬件线路实现对地址时序板的控制,也为微机应用于其它电子产品的改造提供一点值得借鉴的经验。
In the digital data acquisition system, the core of the control acquisition unit is the address sequential circuit. The WK 240 digital seismograph borrows the address sequence circuit (AS board) of the DFS-V instrument, realizes the control of the AS board with the MC68000 microprocessor and the hardware circuit, and completes the address of the box of four simulation boxes , Board address, address and send a variety of control instructions, the return of data reception and many other functions. Thus achieved 240, 2 ms data acquisition. Forming a digital seismograph that is very convenient for 3D exploration. This article focuses on hardware and software aspects discussed how to use the MC 68000 microcomputer and hardware lines to achieve the address of the timing board control, but also for computer applications in the transformation of other electronic products provide a little experience to learn from.