本源码为Nios II的开发示例,主要演示Nios II的SPI总线设计。开发环境QuartusII。 本示例十分经典，对基于SOPC开发的FPGA初学者有很大帮助。-The source code for the Nios II development of an example, the main demonstration Nios II design of the SPI bus. Development environment QuartusII. This example is