vga 显示测试

说明：  能实现输入0.5 1 5块钱的累加，然后对应购买的商品价格进行比较，显示找的钱数或错误灯(MY English is very good)

使用nios2点亮一个led灯，使用软件quartus13.0，开发板de2-115(nios2 led quartus13.0 de2-115)

简易双口ram，使用两个ram ip core，一个写的同时另一个读，并且包含按键使能和数码管以及流水灯显示(Simple dual-port ram, two ram the ip core, a write while another read, and contains buttons to enable digital pipe and the water light show)

串口收发程序，成功通过仿真，可以用来学习(Serial transceiver,It is successful through simulation and can be used to learn)

不错的Quartus II 与modelsim结合仿真简介笔记，较为适合初学者，希望对大家有帮助！()

Verilog语言描述，统计图片的像素值直方图(Verilog，Pictures of the pixel value histogram statistics)

使用Verilog编写的ad9826的控制模块(the module of ad9826 with verilog)

vhdl 的testbench编写教程，英文ppt以及源码工程(Write tutorials, as well as English ppt Source of engineering vhdl testbench)

飞思卡尔智能车芯片模块程序 MC9S12XS128 测试通过(freescale smart car for MC9S12XS128)

r80515源代码，包含说明文档。FPGA验证通过(r80515 source code, including documentation. Verified by FPGA)