DB 00H
TABLE_2:DB 82H,01H,81H,94H,84H,0B4H,0A4H,04H
DB 82H,01H,81H,94H,84H,0C4H,0B4H,04H
DB 82H,01H,81H,0F4H,0D4H,0B4H,0A4H,94H
DB 0E2H,01H,0E1H,0D4H,0B4H,0C4H,0B4H,04H
DB 62H,52H,58H,32H,22H,16H,12H,14H,32H,22H
DB 16H,12H,14H,22H,32H,26H,92H,0A4H,12H,22H,1CH
DB 00H
TABLE1: DW 64260,64400,64524,64580,64684,64777,64820,64898
DJNZR3,$
DJNZR4,DELAY4
DJNZR7,DELAY3
RET
TABLE_1:DB 02H,11H,21H,32H,32H,22H,32H,21H,11H,0A1H,91H,92H,0D1H,91H
DB 0A2H,91H,81H,94H,11H,0A1H,91H,0A1H
DB 11H,93H,94H,03H,81H,11H,0A1H,91H,81H,92H,0A1H,91H,94H,08H
L101EQUP0.0
L102EQUP0.1
L103EQUP0.2
L104EQUP0.3
ORG0000H
JMPMAIN
ORG000BH
JMPINTT0
ORG0100H
MAIN:MOVSP,#60H
MOVTMOD,#01H
MOVSONG1,#00H
MOVSONG2,#00H
LCALLDELAY2
LCALLDELAY2
DB 00H
TABLE_4:DB 02H,82H,16H,32H,54H,02H,52H,0A6H,32H,54H,02H,52H
DB 64H,74H,0B6H,64H,52H,5CH,32H,22H,16H,12H,14H,32H,22H
DB 16H,12H,14H,22H,32H,26H,12H,94H,22H,32H,2CH
LCALLDELAY2
JBKX3,MAIN
CPLL104
MOVDPTR,#TABLE_4
JNBKX3,$
SJMPSTART
START: MOVSONG1,DPL
MOVSONG2,DPH
SETBEX1
SETBET0
SETBEA
START0: MOV30H,#00H
NEXT:MOVA,30H
MOVDPL,SONG1
CHKKX0: JBKX0,CHKKX1;KX0未按下，则检测KX1
LCALLDELAY2;软件延时
JBKX0,CHKKX1;KX0未按下，则检测KX1
CPLL101;KX0按下，则求反L101
MOVDPTR,#TABLE_1
JNBKX0,$;等待KX0松开
SJMPSTART
CHKKX1: JBKX1,CHKKX2
DB 21H,11H,0A1H,11H,91H,92H,91H,11H,0A1H,91H
DB 0A1H,31H,31H,22H,0A1H,11H,14H,01H,11H,21H,31H,63H,31H
DB 42H,51H,31H,22H,11H,21H,52H,31H,33H,31H,31H,41H
DW 64968,65030,65058,65110,65157,65178,65217
END
四、实验心得
DB 51H,61H,23H,21H,21H,41H,31H,21H,13H,0D1H,0D1H,21H,11H
DB 0A1H,11H,91H,92H,91H,11H,0A1H,91H
DB 0A2H,41H,31H,22H,31H,21H,12H,12H,11H,11H,21H,31H
DB 63H,51H,32H,11H,21H,26H,11H,0A1H,18H
LCALLDELAY2
JBKX1,CHKKX2
CPLL102
MOVDPTR,#TABLE_2
JNBKX2,$
SJMPSTART
CHKKX2: JBKX2,CHKKX3
LCALLDELAY2
JBKX2,CHKKX3
CPLL103
MOVDPTR,#TABLE_3
JNBKX2,$
SJMPSTART
CHKKX3: JBKX3,MAIN
DB62H,0B2H,62H,52H,38H,24H,22H,32H,54H,52H,62H,52H,32H,32H,22H,38H
DB64H,0B4H,64H,32H,52H,62H,0B2H,62H,52H,38H,22H,22H,22H,32H,52H,52H
DB 52H,62H,7FH,74H,04H,58H,6FH
MOVDPH,SONG2
MOVCA,@A+DPTR
MOVR2,A
JZENDD
ANLA,#0FH
MOVR5,A
MOVA,R2
SWAPA
ANLA,#0FH
JNZSING
CLRTR0
JMPD1
SING:DECA
MOV22H,A
RLA
MOVDPTR,#TABLE1
MOVCA,@A+DPTR
MOVTH0,A
MOV21H,A
POPPSW
RETI
DELAY:MOVR7,#12
DELAY0:MOVR4,R3,$
DJNZR4,DELAY1
DJNZR7,DELAY0
DJNZR5,DELAY
RET
DELAY2:MOVR7,#04
DELAY3: MOVR4,#187
DELAY4: MOVR3,#248
DB 82H,01H,81H,94H,84H,0B4H,0A4H,04H
DB 82H,01H,81H,94H,84H,0C4H,0B4H,04H
DB 82H,01H,81H,0F4H,0D4H,0B4H,0A4H,94H
DB 0E2H,01H,0E1H,0D4H,0B4H,0C4H,0B4H,04H
2、利用定时器可以产生不同频率的信号。
3、可以将曲调预先编辑好，给程序查表用。
3、实验内容和步骤
编写音乐门铃程序，在按键KX0~KX3控制下，播放4首不同的乐曲。
参考程序如下：
SONG1EQU3EH
SONG2EQU3DH
KX0EQUP3.2
KX1EQUP3.4
KX2EQUP3.5
KX3EQUP3.7
DB 00H
TABLE_3:DB 66H,52H,36H,22H,12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22H
DB 32H,52H,22H,42H,38H,66H,52H,36H,22H,12H,22H,22H,32H,98H
DB 24H,22H,32H,54H,52H,32H,92H,12H,92H,82H,98H,66H,52H,36H,22H
DB 03H,81H,32H,21H,11H,22H,31H,21H,21H,83H
DB 01H,11H,91H,0A1H,11H,61H,51H,11H,34H,01H,31H,21H,31H,48H
DB 23H,31H,32H,42H,38H,03H,11H,21H,52H,31H
DB 33H,31H,31H,41H,51H,61H,23H,21H,21H,41H,31H,21H,13H,0D1H
MOVA,22H
RLA
INCA
MOVCA,@A+DPTR
MOVTL0,A
MOV20H,A
SETBTR0
D1:CALLDELAY
INC30H
JMPNEXT
ENDD:CLRTR0
SETBP1.0
JMPMAIN
INTT0:PUSHPSW
PUSHACC
MOVTL0,20H
MOVTH0,21H
CPLP1.0
POPACC
DB 12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22H,32H,52H,22H,42H,38H
DB 66H,52H,36H,22H,12H,22H,22H,32H,98H,24H,22H,32H,54H,52H,32H
DB 22H,12H,92H,82H,98H,14H,24H,34H,44H,64H,0B4H,64H,32H,52H
DB 32H,52H,36H,22H,14H,54H,0ACH,92H,0A2H
DB 96H,0A2H,96H,82H,3CH,54H,36H,22H,14H,54H
DB 0ACH,92H,0A2H,16H,12H,14H,22H,32H,2CH,02H,82H
DB 16H,32H,56H,12H,0A6H,32H,56H,52H,66H,72H,0B6H,62H
电子科技大学中山学院学生实验报告
院别：电子信息学院课程名称：单片机综合实验
班级
实验名称
音乐门铃设计
实验时间
成绩
批改时间
报告内容
一、实验目的和任务
1、掌握利用定时/计数器产生音频信号的方法。
2、理解音乐门铃的程序结构，加深对定时中断应用的认识。
2、实验原理简介
1、蜂鸣器（由MCU1的P1.0口控制）在不同频率信号的驱动下，会产生不同的声调，通过程序将不同的声调组合起来，就能够产生音乐。