微机控制外文翻译.docx

外文资料SYSTEM OVERVIEWThe DTS is a lost cost,computer controlled test system which is capable of testing a wide range of linear IC,s.The system is contained in a single cabinet and has a relatively small footprint.The major components of the DTS are:Motorola Micorosystems VME series computerSmall profile printerInstrumentataion card cagePower supply traysHewlett Packard 3456A or 3458DVM1.Motorola Microsystems ComputersThe VME/10 is a MC68010 based microcomputer built around the VMEbusarchitecture.Thetesters software runs under the VERSAdos operating system and the RMS68K real-time multitasking kernel. The computer has 384K bytes of main memory ,a memory management unit,a real-time clock/calendar, and 5 slot VMEbus card cage.Also include are a double-side ,double-density floppy disk drive and a 40Mb hard disk.Added in the card cage are a GPIB controller board,a dual parallel board,a 512Kb memory expansion board,and an instrumention bus controller.TheVMEsystem 1131 is a MC68020 based machine designed around a twelve slot VMEbus compatible cardcage. The system unit,16Kb of instruction cache,2Mb of ram ,and a mass storage unit that houses a 70Mb hard disk, 655Kb floppy disk,and a 60Mb streaming tape drive.Added to this are a GPIB controller hard and an IBUS controller board and an IBUS controller board. The terminal used as the system console is a Motorola TM3000 terminal.On both computer systems, the tester software runs under the VERSAdos operating system and the RMS68K real-time multitasking kernel.The DTS environment is designed to look and operate the same on both systems.2． Printer The printers is a small,Centronics compatible dot matrix printer.Its dimensions allow it to reside on an extendable shelf within the DTS cabinet.It is connected to the VME/10 through one of the available parallel ports,or to the SYS1131 via one of the serial ports.3 Instrumentation Card RackMost of the tester instrumentation is installed in the upper portion of the DTS cabinet . The card