Design of Double Phase Code and Computer Interface Circuit
HU Guanyang · Journal of Jianghan Petroleum Institute · 1999
A new kind of computer interface for CSU cable telemeter system's ground module parts of computerized logging system is described By using a computer and 89C51 singlechip computers a double RAM computer interface circuit is designed so that bottleneck problems in realtime data acquisition processing are solved and a design way for important subroutines is clearly describedThis computer interface circuit can carry out the functions of parallel work and shared data between mainframe and 89C51 singlechip and meet the needs for realtime logging in an oilfield