单片机课设波形发生器调频率不可调频率汇编.docx

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单片机课设波形发生器调频率不可调频率汇编.docx

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单片机课设波形发生器调频率不可调频率汇编.docx

单片机课设波形发生器调频率不可调频率汇编

说明：

1,内附可调频与不可调频两种代码

2,可调频中，又有两种调频思路

综合---不可调频产生五种波

ORG0000H

LJMPMAIN

ORG0003H;外部中断0

LJMPINT00

ORG0040H

MAIN:

MOVSP,60H;更改堆栈指针，避免堆栈与工作寄存器区发生冲突

SETBIT0;外部中断请求0为下降沿触发方式

SETBEA;中断允许总开关打开

SETBEX0;允许外部中断0中断

INT00:

CLREA;关中断

PUSHPSW;现场保护

PUSHAcc

SETBEA;开中断

JNBP1.0,IR0;如果K0键闭合，则跳转至IR0输出锯齿波

JNBP1.1,IR1;如果K1键闭合，则跳转至IR1输出梯形波

JNBP1.2,IR2;如果K2键闭合，则跳转至IR2输出三角波

JNBP1.3,IR3;如果K3键闭合，则跳转至IR3输出方波

JNBP1.4,IR4;如果K4键闭合，则跳转至IR4输出正弦波

INTIR:

CLREA;关中断

POPAcc;现场恢复

POPPSW

SETBEA;开中断

RETI

IR0:

MOVR0,#0FEH;设置端口地址

MOVA,#00H

LOOP:

MOVX@R0,A;写入

JBP1.0,INTIR;如果k0键已经断开，则返回

INCA;A加一

SJMPLOOP;循环

LJMPINTIR;返回

IR1:

MOVR0,#0FEH;设置端口地址

MOVA,#00H

UP:

MOVX@R0,A;写入

JBP1.1,INTIR;如果k1键已经断开，则返回

INCA;A加一

JNZUP;循环

DECA;如果已经溢出，则减一，减一之后A的值为255

LCALLDELAY;延时

JBP1.1,INTIR;如果k1键已经断开，则返回

DOWN:

DECA

MOVX@R0,A;写入

JBP1.1,INTIR;如果k1键已经断开，则返回

JNZDOWN;循环

SJMPUP;如果减到0，则跳转至UP，继续执行加一操作

LJMPINTIR;返回

DELAY:

MOVR7,#100;延时子程序

DELAY1:

MOVR6,#10

NOP

DELAY2:

DJNZR6,DELAY2

DJNZR7,DELAY1

RET

IR2:

MOVR0,#0FEH;设置端口地址

MOVA,#00H

UP2:

MOVX@R0,A;写入

JBP1.2,INTIR;如果k2键已经断开，则返回

INCA;A加一

JNZUP2;循环

DOWN2:

DECA;A减一

MOVX@R0,A;写入

JBP1.2,INTIR;如果k2键已经断开，则返回

JNZDOWN2;循环

SJMPUP2;如果减到0，则跳转至UP2，继续加一操作

LJMPINTIR;返回

IR3:

MOVR0,#0FEH;设置端口地址

POSI:

MOVA,#00H;给A赋值0x00

MOVX@R0,A;写入

LCALLDELAY;延时

JBP1.3,INTIR;如果k3键已经断开，则返回

NEGA:

MOVA,#0FFH;给A赋值0xFF

MOVX@R0,A;写入

LCALLDELAY;延时

JBP1.3,INTIR;如果k3键已经断开，则返回

SJMPPOSI;跳转至POSI，继续下一个波形的输出

LJMPINTIR;返回

IR4:

MOVR0,#0FEH;设置端口地址

MOVR1,#00H

XX:

MOVA,R1

LCALLHANSHU;调用查表函数

MOVX@R0,A;写入

JBP1.4,INTIR;如果k4键已经断开，则返回

INCR1

SJMPXX;继续查表

LJMPINTIR;返回

HANSHU:

MOVDPTR,#TAB1

MOVCA,@A+DPTR

RET

TAB1:

DB080h,083h,086h,089h,08ch,090h,093h,096h,099h,09ch,09fh,0a2h,0a5h,0a8h,0abh,0aeh

DB0b1h,0b3h,0b6h,0b9h,0bch,0bfh,0c1h,0c4h,0c7h,0c9h,0cch,0ceh,0d1h,0d3h,0d5h,0d8h

DB0dah,0dch,0deh,0e0h,0e2h,0e4h,0e6h,0e8h,0eah,0ebh,0edh,0efh,0f0h,0f1h,0f3h,0f4h

DB0f5h,0f6h,0f8h,0f9h,0fah,0fah,0fbh,0fch,0fdh,0fdh,0feh,0feh,0feh,0ffh,0ffh,0ffh

DB0ffh,0ffh,0ffh,0ffh,0feh,0feh,0feh,0fdh,0fdh,0fch,0fbh,0fah,0fah,0f9h,0f8h,0f6h

DB0f5h,0f4h,0f3h,0f1h,0f0h,0efh,0edh,0ebh,0eah,0e8h,0e6h,0e4h,0e2h,0e0h,0deh,0dch

DB0dah,0d8h,0d5h,0d3h,0d1h,0ceh,0cch,0c9h,0c7h,0c4h,0c1h,0bfh,0bch,0b9h,0b6h,0b3h

DB0b1h,0aeh,0abh,0a8h,0a5h,0a2h,09fh,09ch,099h,096h,093h,090h,08ch,089h,086h,083h

DB080h,07dh,07ah,077h,074h,070h,06dh,06ah,067h,064h,061h,05eh,05bh,058h,055h,052h

DB04fh,04dh,04ah,047h,044h,041h,03fh,03ch,039h,037h,034h,032h,02fh,02dh,02bh,028h

DB026h,024h,022h,020h,01eh,01ch,01ah,018h,016h,015h,013h,011h,010h,00fh,00dh,00ch

DB00bh,00ah,008h,007h,006h,006h,005h,004h,003h,003h,002h,002h,002h,001h,001h,000h

DB000h,000h,001h,001h,002h,002h,002h,003h,003h,004h,005h,006h,006h,007h,008h,00ah

DB00bh,00ch,00dh,00fh,010h,011h,013h,015h,016h,018h,01ah,01ch,01eh,020h,022h,024h

DB026h,028h,02bh,02dh,02fh,032h,034h,037h,039h,03ch,03fh,041h,044h,047h,04ah,04dh

DB04fh,052h,055h,058h,05bh,05eh,061h,064h,067h,06ah,06dh,070h,074h,077h,07ah,07dh

RET

END

定时调频版――正弦波

SINPDATA30H

THDDATA32H

TLDDATA33H

ORG0000H

LJMPBBK

ORG000BH

LJMPINTT0

ORG0060H

BBK:

MOVSP,#70H

MOVTHD,#0E8H

MOVTLD,#00H

MOVTMOD,#01H

MOVTH0,THD

MOVTL0,THD

START:

SETBET0

SETBEA

SETBTR0

MAIN:

JNBP1.0,INCKEY

JNBP1.1,DECKEY

LJMPSTART

INCKEY:

LCALLDL10MS

MOVA,THD

CJNEA,#0FEH,INC1

LJMPSTART

INC1:

INCTHD

LJMPSTART

DECKEY:

LCALLDL10MS

MOVA,THD

CJNEA,#0AFH,DEC1

LJMPSTART

DEC1:

DECTHD

LJMPSTART

;10MS

DL512:

MOVR7,#0FFH

LOOP:

DJNZR7,LOOP

RET

DL10MS:

MOVR6,#0A4H

LOOP1:

LCALLDL512

DJNZR6,LOOP1

RET

INTT0:

CLREA

PUSHACC

MOVA,SINP

MOVDPTR,#TAB1

MOVCA,@A+DPTR

MOVDPTR,#7FFFH

MOVX@DPTR,A;写入

INCSINP

SETBEA

POPACC