CPLD器件中常用编程，对于多进程做了很好的处理，能实现0到59计数，还可自己根据需要调整，实现多种计数功能，从而实现时分秒计时器的功能-CPLD devices commonly used in programming, for many the process to do a very good deal, can achieve 0-59 count, but also need to be adjusted in accordance with their own, achieve a