现在常用的都是PIC解滚码HCS300/301，及那个DECRYPT的加密算法很少能找到这样的C程序，且又是在51下的，我也没有找到是从PIC的汇编中，一句句理顺，转成C的本例只对关键程序，24C002存储及同步校验等非本程序关键程序介绍：1 利用INT1 和定时器1的GATE=1,高电平时计数，加中断后判断时间，完成滚码串行数据接收2 接收完成后，在DECRYPT下解密3 检查序列号 校验同步值

-Now are PIC solution roll code HCS300/301, and that DECRYPT encryption algorithm rarely find this C program, and because it is at 51 under, I did not find from PIC assembler, a sentence reasonable Shun, converted to C in this case only the key to the program, 24C002 storage and synchronization check and other non-program key program descr iption: 1 INT1 and Timer 1 GATE = 1, high count plus interrupt judgment time complete the rolling code serial data receiver receives the completed decryption DECRYPT under 3 check the serial number to validate the synchronization value