在maxplusII上用VHDL语言编程实现的数字基带信号的同步提取，是一个密码输入和修改的实例。在硬件实验箱上连线，并将程序下载到主芯片上完成。-MaxplusII used in the VHDL language programming realization of digital base-band signal synchronization extraction, is a password input and modify the examples. Experimental bo