射频身份识别系统

射频卡身份识别系统设计PersonIdentificationSystemDesignofRFIDCard#附录二软件总程序ORG0000HLJMPMAINORG0003HLJMPINTOORG0013HLJMPINT1ORG0030HMAIN:CLEAR:MOVSP,#68HMOVA,#0FFHMOV@R0,ADECR0DJNZR5,CLEARMOV30H,#00HMOV31H,#00HMOV32H,#00HMOV33H,#00HMOV34H,#00HMOV35H,#00HMOV36H,#00HMOV37H,#00HMOV40H,#00HMOV41H,#00HMOV42H,#00HMOVR1,#40H;存放读取卡内容的单元40-42hMOVR0,#0;记录读取位数MOVR3,#0;记录读取卡字节数SETBIT0;设定INTO的触发方式为脉冲负边沿触发SETBIT1SETBEX0;打开INTO中断请求SETBEX1SETBEA;打开CPU总中断请求CJNER3,#&NEXT1；存储数据CUNCHU:LOOP:MOVR1,#40HLCALLCHANGE；调16进制数转10进制数LCALLDISPLAY；调显示CLREAJBP2.0,LOOPMOV40H,#00HMOV41H,#00HMOV42H,#00HMOVR3,#0INCR1CJNERl,#43H,$+3JCNEXT1NEXT1:SETBEASJMPCUNCHUINTO:INT1:CLREA；暂时关闭CPU的所有中断请求CLRCMOVA,@R1RRCAMOV@R1,AINCR3SETBEA；允许中断RETI；退出子程序CLREA；暂时关闭CPU的所有中断请求;存储HB3:INC]SETBRETIR3EA；允许中断；退出子程序SETBRS0MOVR6,41HMOVR7,42HCLRA；BCD码初始化MOVR3,AMOVR4,AMOVR5,AMOVR2,#10H；转换双字节十六进制整数MOVA,R7；从高端移出待转换数的一位到CY中RLCAMOVR7,AMOVA,R6RLCAMOVR6,AMOVA,R5；BCD码带进位自身相加，相当于乘2ADDCA,R5DAA；十进制调整MOVR5,AMOVA,R4ADDCA,R4DAAMOVR4,AMOVA,R3ADDCA,R3CHANGE:SETBCMOVA,@R1RRCAMOV@R1,AMOVR3,A;双字节十六进制数的万位数不超过6,不用调整DJNZR2,HB3;处理完16bitD1:CJNER5,#37H,D2LCALLCHAIZI1CLRRS0RET；与第一个正确号码比较D2:CJNER5,#64H,D3LCALLCHAIZI1CLRRS0RET；与第二个正确号码比较D3:CJNER5,#78H,D4LCALLCHAIZI1CLRRS0RET；与第三个正确号码比较D4:CLRP3.4LCALLCHAIZI1CLRRS0RET；错误号码，红色LED发光报警;进行拆字CHAIZI1:MOVA,R5ANLA,#0FHMOV30H,AMOVA,R5ANLA,#0F0HSWAPAMOV31H,AMOVA,R4ANLA,#0FHMOV32H,AMOVA,R4ANLA,#0F0HSWAPAMOV33H,AMOVA,R3ANLA,#0FHMOV34H,AMOVA,R3ANLA,#0F0HSWAPAMOV35H,ARET；==========二显示程序==========;―-将R3-R5内容拆分到30H-37HDISPLAY:MOVR5,#07H;显示程序MOVR0,#37HDISPR:MOVA,R5SWAPAANLA,#0F0HORLA,@R0MOVP1,ADECR0LCALLWAITDJNZR5,DISPRCL