完整的Nios 2 演示工程，包括Quartus II 工程和NIOS IDE下的c代码。采用NIOS 2处理器控制LED。已通过实验测试。-Complete Nios 2 demonstration projects, including the Quartus II and NIOS IDE works under the c code. NIOS 2 processor to control the use of LED. Experimental tests have passed.