中断测频.src

51定时器常用例子包括测频率测脉宽产生波形

; .\中断测频.SRC generated from: 中断测频.c

$NOMOD51

NAME	____瞋芲

P0	DATA	080H
P1	DATA	090H
P2	DATA	0A0H
P3	DATA	0B0H
AC	BIT	0D0H.6
T0	BIT	0B0H.4
T1	BIT	0B0H.5
EA	BIT	0A8H.7
T2	BIT	090H.0
IE	DATA	0A8H
P0_0	BIT	080H.0
P1_0	BIT	090H.0
P0_1	BIT	080H.1
FL	BIT	0D0H.1
P2_0	BIT	0A0H.0
P1_1	BIT	090H.1
P0_2	BIT	080H.2
P3_0	BIT	0B0H.0
P2_1	BIT	0A0H.1
P1_2	BIT	090H.2
P0_3	BIT	080H.3
P3_1	BIT	0B0H.1
P2_2	BIT	0A0H.2
P1_3	BIT	090H.3
P0_4	BIT	080H.4
P3_2	BIT	0B0H.2
P2_3	BIT	0A0H.3
P1_4	BIT	090H.4
P0_5	BIT	080H.5
EXF2	BIT	0C8H.6
RD	BIT	0B0H.7
P3_3	BIT	0B0H.3
P2_4	BIT	0A0H.4
P1_5	BIT	090H.5
P0_6	BIT	080H.6
P3_4	BIT	0B0H.4
P2_5	BIT	0A0H.5
P1_6	BIT	090H.6
P0_7	BIT	080H.7
P3_5	BIT	0B0H.5
ES	BIT	0A8H.4
P2_6	BIT	0A0H.6
P1_7	BIT	090H.7
P3_6	BIT	0B0H.6
P2_7	BIT	0A0H.7
IP	DATA	0B8H
P3_7	BIT	0B0H.7
RI	BIT	098H.0
CY	BIT	0D0H.7
INT0	BIT	0B0H.2
INT1	BIT	0B0H.3
TI	BIT	098H.1
RCAP2H	DATA	0CBH
PS	BIT	0B8H.4
SP	DATA	081H
T2EX	BIT	090H.1
OV	BIT	0D0H.2
RCAP2L	DATA	0CAH
C_T2	BIT	0C8H.1
WR	BIT	0B0H.6
RCLK	BIT	0C8H.5
TCLK	BIT	0C8H.4
SBUF	DATA	099H
PCON	DATA	087H
SCON	DATA	098H
TMOD	DATA	089H
TCON	DATA	088H
IE0	BIT	088H.1
IE1	BIT	088H.3
B	DATA	0F0H
CP_RL2	BIT	0C8H.0
ACC	DATA	0E0H
ET0	BIT	0A8H.1
ET1	BIT	0A8H.3
TF0	BIT	088H.5
ET2	BIT	0A8H.5
TF1	BIT	088H.7
TF2	BIT	0C8H.7
RB8	BIT	098H.2
TH0	DATA	08CH
EX0	BIT	0A8H.0
IT0	BIT	088H.0
TH1	DATA	08DH
EX1	BIT	0A8H.2
TB8	BIT	098H.3
IT1	BIT	088H.2
TH2	DATA	0CDH
P	BIT	0D0H.0
SM0	BIT	098H.7
TL0	DATA	08AH
SM1	BIT	098H.6
TL1	DATA	08BH
SM2	BIT	098H.5
TL2	DATA	0CCH
PT0	BIT	0B8H.1
RS0	BIT	0D0H.3
PT1	BIT	0B8H.3
RS1	BIT	0D0H.4
PT2	BIT	0B8H.5
TR0	BIT	088H.4
TR1	BIT	088H.6
TR2	BIT	0C8H.2
PX0	BIT	0B8H.0
PX1	BIT	0B8H.2
DPH	DATA	083H
DPL	DATA	082H
EXEN2	BIT	0C8H.3
REN	BIT	098H.4
T2MOD	DATA	0C9H
T2CON	DATA	0C8H
RXD	BIT	0B0H.0
TXD	BIT	0B0H.1
F0	BIT	0D0H.5
PSW	DATA	0D0H
?PR?delay?____瞋芲   SEGMENT CODE 
?PR?kINT1?____瞋芲   SEGMENT CODE 
?PR?ledxianshi?____瞋芲                  SEGMENT CODE 
?PR?main?____瞋芲    SEGMENT CODE 
?C_INITSEG           SEGMENT CODE 
?CO?____瞋芲         SEGMENT CODE 
?DT?____瞋芲         SEGMENT DATA 
	EXTRN	CODE (?C?UIDIV)
	EXTRN	CODE (?C_STARTUP)
	PUBLIC	s
	PUBLIC	j
	PUBLIC	f
	PUBLIC	led
	PUBLIC	a?
	PUBLIC	tv
	PUBLIC	main
	PUBLIC	ledxianshi
	PUBLIC	kINT1
	PUBLIC	delay

	RSEG  ?DT?____瞋芲
            led:   DS   4
              f:   DS   2
              j:   DS   1
              s:   DS   2

	RSEG  ?CO?____瞋芲
tv:
	DB	0FEH
	DB	0FDH
	DB	0FBH
	DB	0F7H

a?:
	DB	03FH
	DB	006H
	DB	05BH
	DB	04FH
	DB	066H
	DB	06DH
	DB	07DH
	DB	007H
	DB	07FH
	DB	06FH
	DB	077H
	DB	07CH


	RSEG  ?C_INITSEG
	DB	002H
	DB	f
	DW	00000H

; #include"at89x52.h"
; 
; #define uchar unsigned char
; #define uint  unsigned int
; 
; uchar code  tv[]={0xfe,0xfd,0xfb,0xf7};
; uchar code  a[]={0x3f,0x06,0x5b,0x4f,
; 	0x66,0x6d,0x7d,0x07,0x7f,
; 	0x6f,0x77,0x7c};
; uchar data j,led[4];
; uint  f=0,s;
; 
; 
; void delay(void)

	RSEG  ?PR?delay?____瞋芲
delay:
	USING	0
			; SOURCE LINE # 14
; {
			; SOURCE LINE # 15
; 	uint i;
; 	for(i=0;i<900;i++);
			; SOURCE LINE # 17
;---- Variable 'i?040' assigned to Register 'R6/R7' ----
	CLR  	A
	MOV  	R7,A
	MOV  	R6,A
?C0001:
	INC  	R7
	CJNE 	R7,#00H,?C0013
	INC  	R6
?C0013:
	CJNE 	R6,#03H,?C0001
	CJNE 	R7,#084H,?C0001
; }
			; SOURCE LINE # 18
?C0004:
	RET  	
; END OF delay

CSEG	AT	00013H
	LJMP	kINT1

; 
; 
; void kINT1( void ) interrupt 2

	RSEG  ?PR?kINT1?____瞋芲
	USING	0
kINT1:
	PUSH 	ACC
			; SOURCE LINE # 21
; {
; 	P1++;
			; SOURCE LINE # 23
	INC  	P1
; 	f++;//900;//(TH1<<8)+TL1;
			; SOURCE LINE # 24
	INC  	f+01H
	MOV  	A,f+01H
	JNZ  	?C0014
	INC  	f
?C0014:
; 	TH1=0; 
			; SOURCE LINE # 25
	MOV  	TH1,#00H
; 	TL1=0;
			; SOURCE LINE # 26
	MOV  	TL1,#00H
; }
			; SOURCE LINE # 27
	POP  	ACC
	RETI 	
; END OF kINT1

; 
; 
;       ledxianshi()

	RSEG  ?PR?ledxianshi?____瞋芲
ledxianshi:
	USING	0
			; SOURCE LINE # 30
;       {
			; SOURCE LINE # 31
;           uchar k,i;
;      	  led[0]=f/1000;
			; SOURCE LINE # 33
	MOV  	R6,f
	MOV  	R7,f+01H
	MOV  	R4,#03H
	MOV  	R5,#0E8H
	LCALL	?C?UIDIV
	MOV  	led,R7
;           led[1]=(f%1000)/100;
			; SOURCE LINE # 34
	MOV  	R6,f
	MOV  	R7,f+01H
	MOV  	R4,#03H
	MOV  	R5,#0E8H
	LCALL	?C?UIDIV
	MOV  	R6,#00H
	MOV  	R7,#064H
	XCH  	A,R7
	XCH  	A,R5
	XCH  	A,R7
	XCH  	A,R6
	XCH  	A,R4
	XCH  	A,R6
	LCALL	?C?UIDIV
	MOV  	led+01H,R7
; 	  led[2]=(f%100)/10;
			; SOURCE LINE # 35
	MOV  	R6,f
	MOV  	R7,f+01H
	MOV  	R4,#00H
	MOV  	R5,#064H
	LCALL	?C?UIDIV
	MOV  	R6,#00H
	MOV  	R7,#0AH
	XCH  	A,R7
	XCH  	A,R5
	XCH  	A,R7
	XCH  	A,R6
	XCH  	A,R4
	XCH  	A,R6
	LCALL	?C?UIDIV
	MOV  	led+02H,R7
; 	  led[3]=f%10;
			; SOURCE LINE # 36
	MOV  	R6,f
	MOV  	R7,f+01H
	MOV  	R4,#00H
	MOV  	R5,#0AH
	LCALL	?C?UIDIV
	MOV  	led+03H,R5
; 	  		
; 		for(k=0;k<4;k++)
			; SOURCE LINE # 38
;---- Variable 'k?241' assigned to Register 'R5' ----
	CLR  	A
	MOV  	R5,A
?C0006:
; 		 { i=led[k];
			; SOURCE LINE # 39
	MOV  	A,#LOW (led)
	ADD  	A,R5
	MOV  	R0,A
	MOV  	A,@R0
;---- Variable 'i?242' assigned to Register 'R4' ----
	MOV  	R4,A
; 		   P0=a[i];
			; SOURCE LINE # 40
	MOV  	DPTR,#a?
	MOVC 	A,@A+DPTR
	MOV  	P0,A
; 		   P2=tv[k];
			; SOURCE LINE # 41
	MOV  	A,R5
	MOV  	DPTR,#tv
	MOVC 	A,@A+DPTR
	MOV  	P2,A
; 	           delay();
			; SOURCE LINE # 42
	LCALL	delay
; 		 }
			; SOURCE LINE # 43
	INC  	R5
	CJNE 	R5,#04H,?C0006
; 	 } 
			; SOURCE LINE # 44
?C0009:
	RET  	
; END OF ledxianshi

; 
; void main()

	RSEG  ?PR?main?____瞋芲
main:
	USING	0
			; SOURCE LINE # 46
; {
			; SOURCE LINE # 47
; 	EA=1;
			; SOURCE LINE # 48
	SETB 	EA
; 	EX1=1;
			; SOURCE LINE # 49
	SETB 	EX1
; 	IT1=1;
			; SOURCE LINE # 50
	SETB 	IT1
; 	TMOD=0x50;
			; SOURCE LINE # 51
	MOV  	TMOD,#050H
; 	TH1=0; 
			; SOURCE LINE # 52
	CLR  	A
	MOV  	TH1,A
; 	TL1=0;
			; SOURCE LINE # 53
	MOV  	TL1,A
; 	TR1=1;
			; SOURCE LINE # 54
	SETB 	TR1
?C0010:
; 	
; 	while(1)
			; SOURCE LINE # 56
; 	{
			; SOURCE LINE # 57
; 		ledxianshi();
			; SOURCE LINE # 58
	LCALL	ledxianshi
; 	}
			; SOURCE LINE # 59
	SJMP 	?C0010
; END OF main

	END