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基于ISA总线的微秒级同步器研制

作者:党钊，李小群，唐军，陈骥 分类：装备与武器 上传者:ZCOM网友

摘要：基于ISA总线的微秒级同步器设计采用可编程硬件定时，由晶振发出的脉冲经分频后送入8254进行计数。软件采用VC++ 对同步器硬件端口进行操作，设置相应的参数，得到所需的多路延时同步信号。由严格的延时和一定宽度的脉冲触发高精度仪器、设备的相关单元实现按序自动运行。
关键词：同步器；微秒级；ISA总线
中图分类号： 文献标识码：
** Develop on Microsecond Synchronizer Based on ISA Bus
DANG Zhao, LI Xiao-Qun, TANG Jun, CHEN Ji
(Research Center of Laser Fμsion, CAEP, P.O.Box 919-988, Mianyang 621900, China)
Abstract: Programmable hardware timing was used in design of microsecond synchronizer based on ISA bus, after pulse generated by oscillator was divided frequency, it was sent to 8254 to count. Hardware port of synchronizer was operated with VC++, setting corresponding parameter, needed multi-way delay synchronizing signal was gained. Automatic operation in sequence was realized through pulse with precision delay and determinate width triggered corresponding unit of high precision instrument and equipment.