adc_led.s

这是atmega128单片机的模数转换程序

	.module ADC_led.c
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\wdd\桌面\模数转换\adc_led\ADC_led.c
	.dbfunc e s_ms _s_ms fV
;             ms -> R16,R17
	.even
_s_ms::
	.dbline -1
	.dbline 6
; #include<iom128v.h>
; #define uchar unsigned char 
; #define uint unsigned int 
; 
; void s_ms(uint ms)
; {
	.dbline 7
; 	for(;ms>1;ms--);
	xjmp L5
L2:
	.dbline 7
L3:
	.dbline 7
	subi R16,1
	sbci R17,0
L5:
	.dbline 7
	ldi R24,1
	ldi R25,0
	cp R24,R16
	cpc R25,R17
	brlo L2
X0:
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbsym r ms 16 i
	.dbend
	.dbfunc e main _main fI
;          adc_h -> R12
;          adc_l -> R10
;              i -> R20
	.even
_main::
	.dbline -1
	.dbline 13
; }	
; 
; //ADC0测试，用8位LED显示ADHL
; //主函数
; main()
; {
	.dbline 15
; uchar adc_l,adc_h,i;
; DDRA=0xff;
	ldi R24,255
	out 0x1a,R24
	.dbline 16
; PORTA=0x00;
	clr R2
	out 0x1b,R2
	.dbline 17
; DDRB=0xff;
	out 0x17,R24
	.dbline 18
; DDRD=0xff;
	out 0x11,R24
	.dbline 19
; PORTD=0x00;
	out 0x12,R2
	.dbline 20
; DDRF=0x00;
	sts 97,R2
	.dbline 21
; PORTF=0x00;
	sts 98,R2
	.dbline 22
; DDRG=0xff;
	sts 100,R24
	.dbline 23
; PORTG=0xff;
	sts 101,R24
	xjmp L8
L7:
	.dbline 26
; 
; while(1)
;      { 
	.dbline 27
;      ADCSRA=0x00;
	clr R2
	out 0x6,R2
	.dbline 28
;      ADMUX=0x40;    //AVCC参考电压 ADC0输入
	ldi R24,64
	out 0x7,R24
	.dbline 29
;      ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADFR)|0x07;   //128分频，循环取值
	ldi R24,231
	out 0x6,R24
	.dbline 31
; 
;      s_ms(500);         //延时
	ldi R16,500
	ldi R17,1
	xcall _s_ms
	.dbline 33
; 
;      adc_l=ADCL;
	in R10,0x4
	.dbline 34
;      adc_h=ADCH;
	in R12,0x5
	.dbline 36
; 
; 	 PORTA=~adc_l;
	mov R2,R10
	com R2
	out 0x1b,R2
	.dbline 37
; 	 for(i=0;i<10;i++)
	clr R20
	xjmp L13
L10:
	.dbline 38
; 	    {
	.dbline 39
; 		 s_ms(60000);
	ldi R16,60000
	ldi R17,234
	xcall _s_ms
	.dbline 40
; 		}
L11:
	.dbline 37
	inc R20
L13:
	.dbline 37
	cpi R20,10
	brlo L10
X1:
	.dbline 41
; 	 }
L8:
	.dbline 25
	xjmp L7
X2:
	.dbline -2
L6:
	.dbline 0 ; func end
	ret
	.dbsym r adc_h 12 c
	.dbsym r adc_l 10 c
	.dbsym r i 20 c
	.dbend
; }
; 
;