自己编写的PWM模块，通过SOPC和NIOSII IDE软件控制，控制DE2开发板上的小灯忽明忽暗-I have written the PWM module, through the SOPC and NIOSII IDE software control, control DE2 development board忽明忽暗small lamp

：以NiosⅡ Cyclone EPIC20F400C7开发板为硬件平 台，利用 Ouartus II、SOPC Builder和 NiosⅡIDE软件设计来实 现一个基于 SOPC的多功能数字电子钟-: The Nios Ⅱ Cyclone EPIC20F400C7 development board as the hardware platform, using Ouartus II, SOPC Builder and Nios Ⅱ IDE to implement a softwar