마이크로프로세서에 의한 측정기법 : IEEE-488 BUS용 프로그램형 계측기 설계

Design of a programmable Instrument for IEEE-488 BUS

In this paper a basic design procedure for programmable instruments of IEEE-488 BUS system has been discussed by designing a specific programmable frequency counter with its hardware and software. The designed programmable frequency counter has a programmable range switch and a function of the programable number of measurements. It contains five basic functions(Talker. Listener, Source handshake, Accepter handshake and Controller) of a IEEE-488 BUS and the Device-Trigger as a supplimentary function. The hardware has been built along with 6800 MPU and 68488 GPIA, and its software has included initialization, interrupt handler, BI.GET,BO and controller routines, The designed system given in this paper has been successfuly tested via some experiments.