An electronic coded lock based on in system programmable (ISP) technology and complex programmable logic device(CPLD)is introduced in this paper.

• 介绍一种基于在系统可编程(ISP)技术和复杂可编程逻辑器件(CPLD)的新型电子密码锁的设计方法,阐述了其工作原理和软硬件设计。