利用De0_nano建立的SOPC系统，其中包含有LCD，LED，DDS函数发生和ADC等源程序。工程编译环境为Quartus II 11.0，eclipse for sopc。-Established by De0_nano SOPC system, which includes LCD, LED, DDS functions occurrence and ADC and other source. Project build environment for the Quartus II 11