摘要
IRIG-BDC码为国际通用时间格式码,以其实际优越性能,成为时统设备首选的标准码型,用于各系统的时间同步。本文给出了一种基于ISA总线的B码解码器电路设计的新方法。将标准时统设备送来的IRIG-B码,通过专用通道送入CPLD,由CPLD解码出8421码格式的天、时、分、秒信息,送入主计算机,以校准本机的系统时间,具有灵活性、开放性、简单实用、体积小、功耗低的优点,同时具有较强的抗干扰能力。
IRIG-B DC code is an international current timing code,which has become the first selected standard code style for system-time-synchronization because of its predominant performance. This article puts forward to a new method of B code decoding. It decodes the IRIG-B code which is put into CPLD through appropriate entrance from standard timing-unification equipments; the decoding information of day, hour, minute, second is send into the computer to adjust its system time. The method has its advantage of flexibility, opening, simpleness, smallness and low consuming. Meanwhile, it has strong anti-jamming ability.
出处
《国外电子测量技术》
2008年第5期43-45,54,共4页
Foreign Electronic Measurement Technology
