verilog jtag源码及原理，还有debug模块。边界扫描等-verilog jtag source and principle, as well as debug module. Boundary-Scan, etc.

Altera 的下载线官方资料，可以制作JTAG和AS模式的下载线-Altera download cable official information, you can create JTAG and AS modes download cable