方波发生器程序单片机课程设计.docx
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- 上传时间:2022-11-23
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方波发生器程序单片机课程设计.docx
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方波发生器程序单片机课程设计
单片机硬件用实习任务书
这个设计中要完成波形发生器。
能够产生三角波、方波、正弦波。
当按A键时输出三角波,按B键时输出方波,按C键时输出正弦波,调节电位器能改变波形的频率,并用四位LED显示当前输出的是什么波形,频率是多少。
具体任务:
●单片机芯片的选择
●存贮器的设计
●输入/输出接口的设计
●键盘和显示器的设计
●制作原理图与印刷电路板图
●利用仿真器来调试电路板
●程序编写与调试
第一阶段:
完成器件选择,原理图的绘制。
第二阶段:
完成程序编写,仿真器的调试。
总成绩分为三部分:
1、原理图、硬件图的绘制30%
2、仿真器调试40%
3、设计报告30%
目录
1实习内容与要求1
2总体方案设计3
3硬件设计9
3.1单片机系统硬件设计9
3.2显示模块硬件设计10
3.3键盘模块硬件设计11
3.4AD模块硬件设计13
3.5DA模块硬件设计15
4软件设计17
4.1主程序设计17
4.2显示模块硬件设计10
4.3键盘模块硬件设计11
4.4AD模块硬件设计13
4.5DA模块硬件设计15
5调试30
5.1硬件调试17
5.2软件调试10
6结论36
参考文献37
致谢38
说明:
此程序是本人独立完成,基本功能都已实现。
。
。
缺点是方波占空比改变范围小,因时间紧迫没来得及优化,仅供参考。
。
。
程序:
D_APORTEQU0F218H
A_DPORTEQU0F230H
C8255EQU0F22BH
P8255AEQU0F228H
P8255BEQU0F229H
P8255CEQU0F22AH
BAIEQU40H
SHIEQU41H
GEEQU42H
QIANEQU43H
ORG0000H
LJMPSTART
ORG0003H
LJMPINT_0
ORG0040H
START:
MOVSP,#60H
MOVR7,#0FFH
SETBIT0
SETBEA
SETBEX0
MOVDPTR,#C8255
MOVA,#82H
MOVX@DPTR,A
MAIN:
LCALLKEY
CJNER5,#1,L3
MOVQIAN,#10
LCALLSAN
L3:
CJNER5,#2,L4
MOVQIAN,#11
LCALLFANG
L4:
CJNER5,#3,L5
MOVQIAN,#12
LCALLZHENG
L5:
LCALLA_D
LCALLSHOW
LJMPSTART
A_D:
MOVDPTR,#A_DPORT
MOVX@DPTR,A
CJNER7,#00H,$
CPLA
MOVP1,A
MOVR4,A
MOVR7,#0FFH
MOVA,R4
MOVB,#100
DIVAB
MOVBAI,A
MOVA,#10
XCHA,B
DIVAB
MOVSHI,A
XCHA,B
MOVGE,A
RET
SHOW:
MOVDPTR,#P8255C
MOVA,#18H
MOVX@DPTR,A
MOVA,QIAN
MOVDPTR,#LED
MOVCA,@A+DPTR
MOVDPTR,#P8255A
MOVX@DPTR,A
LCALLDELAY
MOVDPTR,#P8255C
MOVA,#10H
MOVX@DPTR,A
MOVA,BAI
MOVDPTR,#LED
MOVCA,@A+DPTR
MOVDPTR,#P8255A
MOVX@DPTR,A
LCALLDELAY
MOVDPTR,#P8255C
MOVA,#08H
MOVX@DPTR,A
MOVA,SHI
MOVDPTR,#LED
MOVCA,@A+DPTR
MOVDPTR,#P8255A
MOVX@DPTR,A
LCALLDELAY
MOVDPTR,#P8255C
MOVA,#00H
MOVX@DPTR,A
MOVA,GE
MOVDPTR,#LED
MOVCA,@A+DPTR
MOVDPTR,#P8255A
MOVX@DPTR,A
LCALLDELAY
RET
KEY:
MOVA,#01H
MOVDPTR,#P8255C
MOVX@DPTR,A
MOVDPTR,#P8255B
MOVXA,@DPTR
CJNEA,#0FFH,KEY1
RET
KEY1:
LCALLDELAY
MOVDPTR,#P8255B
MOVXA,@DPTR
CJNEA,#0FFH,KEYSCAN
RET
KEYSCAN:
CJNEA,#0FBH,L1
MOVR5,#1
L1:
CJNEA,#0F7H,L2
MOVR5,#2
L2:
CJNEA,#0EFH,M1
MOVR5,#3
M1:
RET
SAN:
MOVA,#00H
movdptr,#d_aport
cc:
movx@dptr,a
inca
LCALLDELAY2
cjnea,#0ffh,cc
dd:
movx@dptr,a
deca
LCALLDELAY2
cjnea,#0ffh,dd
RET
FANG:
MOVA,R4
MOVR1,A
MOVA,#0FFH
A1:
MOVDPTR,#0F218H
MOVX@DPTR,A
DECR1
CJNER1,#00H,A1
MOVA,R4
MOVR1,A
MOVA,#00H
A2:
MOVDPTR,#0F218H
MOVX@DPTR,A
DECR1
CJNER1,#00H,A2
RET
ZHENG:
MOVR0,#00H
B1:
MOVA,R0
MOVDPTR,#sinTab
MOVCA,@A+DPTR
MOVDPTR,#0F218H
MOVX@DPTR,A
INCR0
LCALLDELAY2
CJNER0,#00H,B1
RET
DELAY:
MOVR0,#01H
DELAY1:
MOVR1,#10H
DJNZR1,$
DJNZR0,DELAY1
RET
DELAY2:
PUSHACC
MOVA,R4
MOVB,#30
DIVAB
MOVR1,A
CJNER1,#0,E1
MOVR1,#1
E1:
NOP
DJNZR1,E1
POPACC
RET
INT_0:
MOVXA,@DPTR
MOVR7,#00H
RETI
LED:
DB3FH,06H,5BH,4FH,66H,6DH,7DH,07H
DB7FH,6FH,77H,7CH,39H,5EH,79H,71H
sinTab:
DB80H,83H,86H,89H,8DH,90H,93H,96H
DB99H,9CH,9FH,0A2H,0A5H,0A8H,0ABH,0AEH
DB0B1H,0B4H,0B7H,0BAH,0BCH,0BFH,0C2H,0C5H
DB0C7H,0CAH,0CCH,0CFH,0D1H,0D4H,0D6H,0D8H
DB0DAH,0DDH,0DFH,0E1H,0E3H,0E5H,0E7H,0E9H
DB0EAH,0ECH,0EEH,0EFH,0F1H,0F2H,0F4H,0F5H
DB0F6H,0F7H,0F8H,0F9H,0FAH,0FBH,0FCH,0FDH
DB0FDH,0FEH,0FFH,0FFH,0FFH,0FFH,0FFH,0FFH
DB0FFH,0FFH,0FFH,0FFH,0FFH,0FFH,0FEH,0FDH
DB0FDH,0FCH,0FBH,0FAH,0F9H,0F8H,0F7H,0F6H
DB0F5H,0F4H,0F2H,0F1H,0EFH,0EEH,0ECH,0EAH
DB0E9H,0E7H,0E5H,0E3H,0E1H,0DEH,0DDH,0DAH
DB0D8H,0D6H,0D4H,0D1H,0CFH,0CCH,0CAH,0C7H
DB0C5H,0C2H,0BFH,0BCH,0BAH,0B7H,0B4H,0B1H
DB0AEH,0ABH,0A8H,0A5H,0A2H,9FH,9CH,99H
DB96H,93H,90H,8DH,89H,86H,83H,80H
DB80H,7CH,79H,78H,72H,6FH,6CH,69H
DB66H,63H,60H,5DH,5AH,57H,55H,51H
DB4EH,4CH,48H,45H,43H,40H,3DH,3AH
DB38H,35H,33H,30H,2EH,2BH,29H,27H
DB25H,22H,20H,1EH,1CH,1AH,18H,16H
DB15H,13H,11H,10H,0EH,0DH,0BH,0AH
DB09H,08H,07H,06H,05H,04H,03H,02H
DB02H,01H,00H,00H,00H,00H,00H,00H
DB00H,00H,00H,00H,00H,00H,01H,02H
DB02H,03H,04H,05H,06H,07H,08H,09H
DB0AH,0BH,0DH,0EH,10H,11H,13H,15H
DB16H,18H,1AH,1CH,1EH,20H,22H,25H
DB27H,29H,2BH,2EH,30H,33H,35H,38H
DB3AH,3DH,40H,43H,45H,48H,4CH,4EH
DB51H,55H,57H,5AH,5DH,60H,63H,66H
DB69H,6CH,6FH,72H,76H,79H,7CH,80H
END
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