由nios ii实现的，用cfi flash与SDRAM共同实现的电子数字时钟，基于sopc的嵌入式代码，所用软件都是9.0版本的，包括quartus ii9.0 和nios ii9.0-Achieved by the nios ii, together with the cfi flash with SDRAM to achieve the electronic digital clock, based on sopc embedded code, the software is versio