一篇比较好的spi接口的vhdl实现的参考

这段代码是用VHDL解释椭圆曲线密码术的。这段代码包含了使用FPGA板进行ECC加密的必要算法！ ；

16b20b encoder and decoder

《Verilog HDL 程序设计教程》8-"Verilog HDL Design Guide" 8

fpga配置锁相环完整程序，使用quartus IP核，Verilog语言。(FPGA configuration PLL complete program, Verilog language.)

GAL16V8(仿真74LS138),试验通过。包括able及jed文件。对pcb印板设计时，对简化走线特别有用。简单的修改GAL16V8程序，可灵活地进行地址译码修改。(GAL16V8 (simulation 74LS138), test passed. Including the able and jed file. Printed on the pcb board design, especially useful to simplify alignment. Simple modifications GAL16V8 program, the flexibility to change the address decoding.)

I am in need of some codes of HDL

印制线路板设计经验点滴-Printed Circuit Board Design Experience

说明：  matlab bpsk with rayleigh performance expirement

dc的应用规范，以及一些基础的操作指导，注意事项等(dc application specification, as well as some basic instructions, precautions, etc.)

基于VHDL的数字计时器，手动可控正计时和倒计时(含复位键和使能键)(VHDL-based digital timer and countdown timer being controlled manually (with the reset button and enable key))