MULTIMODE INTERFACE BETWEEN A PDP-9 COMPUTER AND A GEOSCIENCE ADC/ PROCESSOR.
N.Mex. (USA) Los Alamos Scientific Lab., R Morris, L Dalton · 1972
The hardware design of an interface used for general-purpose data acquisition and analysis and some examples of the software necessary to operate it are described.The interface permits the computer to accept data from nuclear counting experiments with an average deadtime of 2 to 3 ysec (not including ADC deadtime,, to digitize and store analog signals from nondestructive tests, and to use an external memory as a type of random access mass storage.Wiring and logic diagrams are included, as well as ""he software listings, of typical operating subroutines.Two computer-initiated pulses are aloo available at the front panel of the interface and may be used by the experimenter to control external devices.