uc/os operation system,which is used in FPGA nios ii.

这个源码是用altera公司的开发工具NIOS II IDE开发的基于软核处理器的AD、DA控制程序， 通过spi 核控制AD、DA的时序，实现正弦波发送和接收。-this source is altera company development tools NIOS II IDE- based soft-core Office JIMMY of AD and DA control procedures, spi nuclear control AD and DA timetab