Grasp the speaker driver 5.EPLD technology to master-level design method II, the experimental requirements: 1.With hours, minutes and seconds count display to a 24-hour cycle time. 2.

• 4． 掌握扬声器的驱动 5． 掌握EPLD技术的层次化设计方法 二、实验要求： 1．用时、分、秒计数显示功能，以24小时循环计时。