电路图：
;************************************* 上位机软件及pcb文件下载地址:http://www.ruidan.com/bbs/dpj-19233-1.html ;STC89C51RC单片机,6M晶振 ;P0.7为红外输入 ;P0.6为无线电信号输入 ;P0.5为外部信号输入 ;************************************* CSEQUP0.0 A0EQUP0.1 DXEQUP0.3 CEEQUP0.4 GETEQUP0.2 ORG0000H LJMPAMIT ORG0030H AMIT:MOV,#0FBH MOVP0,#0F MOVP1,#0FFH MOVP2,#0FFH MOVP3,#0FFH MOVR0,#08H MOVR7,#68 MOVR2,#00H CLRP0.7 MOVTMOD,#01H MOVTL0,#00H MOVTH0,#00H CLRTR0 ;********CH372复位********* FW:MOVA,#05H MOVP2,A CS SETBA0;写复位命令 CLRDX NOP NOP;50NS就可以 SETBDX LCALLDYL J:JBGET,$ MOVA,#22H;接受中断数据 ACALLXML;调用CH372写命令 ACALLDSJ;调用CH372读数据 CJNEA,#01H,G1 AJMPOUT1 G1:CJNEA,#0F2H,G2 ACALLOUT2;如果CH372返回0F2则读端口2的命令 AJMPCHKOF G2:CJNEA,#0F5H,G3 AJMPD G3:CJNEA,#0F6H,G4 AJMPLEEP G4:CJNEA,#0F9H,G5 ACALLINO AJMPJSCS G5:CJNEA,#0FAH,JSCS ACALLINO AJMPJSCS ;*******采集子程序******** CHKOF:CJNEA,#0A1H,F1;捕获输入信号。 AJMPTIM F1:CJNEA,#0A2H,F2;如果收到A2则复位主程序。 AJMPAMIT F2:CJNEA,#0A3H,F3;红外输入。 AJMPHWX F3:CJNEA,#0A4H,F4;无线电信号输入。 AJMPWXD F4:CJNEA,#0A5H,JSCS;外部信号输入。 SETBP0.7 SETBP0.6 CLRP0.5 MOVR2,#02H AJMPJSCS HWX:SETBP0.5 SETBP0.6 CLRP0.7 MOVR2,#00H AJMPJSCS WXD:SETBP0.5 SETBP0.7 CLRP0.6 MOVR2,#01H AML:AJMPJSCS ;***********判断输入端*********** TIM:CJNER2,#0F1H,TI1 AJMPWTT TI1:CJNER2,#0F2H,TI2 AJTT TI2:CJNER2,#0F0H,AML ;***********数据采集1红外输入************ CT:JNBGET,QH_1 JBP3.7,CT SETBTR0 THO:JNBP3.7,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A JBP3.7,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 INCR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A INCR0 DJNZR7,THO CLRTR0 AJMPFZ QH_1:AJMPJSCS ;***********数据采集2无线输入************ WTT:JNBGET,QH_2 JBP3.6,WTT SETBTR0 THA:JNBP3.6,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A JBP3.6,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 INCR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A INCR0 DJNZR7,THA CLRTR0 AJMPFZCX QH_2:AJMPJSCS ;************数据采集3外部输入************ UTT:JNBGET,QH_2 JBP3.5,UTT SETBTR0 T:JNBP3.5,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A JBP3.5,$ CLRTR0 MOVA,TH0 MOVR1,TL0 MOVTL0,#01H MOVTH0,#00H SETBTR0 INCR0 MOV@R0,A INCR0 MOVA,R1 MOV@R0,A INCR0 DJNZR7,THB CLRTR0 ;*************数据发送*********** FZCX:MOVR7,#122 MOVR0,#08H ZDDS:MOVA,#2AH;CH372中断命令通知PC机 ACALLXML NOP NOP MOVA,#02H;可输入8个字节 ACALLXSJ MOVA,@R0;送入要上传的数据 ACALLXSJ INCR0 MOVA,@R0;送入要上传的数据 ACALLXSJ INCR0 ACALLFYL MOVA,#22H;接受中断数据 ACALLXML ACALLDSJ ACALLFYL ACALLINO DJNZR7,ZDDS MOVR0,#08H MOVR7,#61 AJMPJSCS ;********CH372读出数据********** OUT2:MOVA,#28H;读端口2的命令 ACALLXML ACALLDSJ NOP ACALLDSJ NOP RET ;**************** OUT1:NOP PEND:NOP LEEP:NOP AJMPAMIT ;******释放缓冲区子程序***** INO:MOVA,#2BH;释放当前USB缓冲区 ACALLXML NOP NOP RET ;*******写入数据子程序******* XSJ:CLRA0;写入数据 NOP NOP;延时2US,根据主频来确定NOP的值 MOVP2,A NOP NOP;50NS就可以 SETBDX NOP NOP;延时1.2US根据主频调整 RET ;*********延时子程序****** DYL:MOVR6,#100 D1:MOVR5,#50 DJNZR5,$ DJNZR6,D1 RET FYL:MOVR6,#2 FD1:MOVR5,#68 DJNZR5,$ DJNZR6,FD1 RET END