FPGA学习笔记 BASYS 2学习板 Label:Research

教程：

https://wenku.baidu.com/view/3f9cf330aaea998fcc220e57.html

https://blog.csdn.net/ding_ding_fly/article/details/53458451

http://blog.chinaaet.com/dianzidebuguilu/p/5100050057

https://wenku.baidu.com/view/bdf8c8a09ec3d5bbfc0a7466.html