?? song.#3
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;-----------------------------------------------------------------------------; Copyright (C) 2001 CYGNAL INTEGRATED PRODUCTS, INC.; All rights reserved.
;;;; FILE NAME : BLINK.ASM ; TARGET MCU : C8051F020 ; DESCRIPTION : This program illustrates how to disable the watchdog timer,; configure the Crossbar, configure a port and write to a port; I/O pin.;; NOTES: ;;-----------------------------------------------------------------------------$include (c8051f020.inc) ; Include regsiter definition file.;-----------------------------------------------------------------------------; EQUATES;-----------------------------------------------------------------------------
GREEN_LED equ P1.6 ; Port I/O pin connected to Green LED. ;-----------------------------------------------------------------------------; RESET and INTERRUPT VECTORS;----------------------------------------------------------------------------- ; Reset Vector cseg AT 0 ljmp Main ; Locate a jump to the start of code at
; the reset vector.
ORG 000BH
INC 20H ;中斷服務,中斷計數器加1
MOV TH0,#0f8H;d8h
MOV TL0,#0EFH ;12M晶振，形成10毫秒中斷
RETI
;-----------------------------------------------------------------------------; CODE SEGMENT;-----------------------------------------------------------------------------Blink segment CODE
rseg Blink ; Switch to this code segment.
using 0 ; Specify register bank for the following
; program code.Main: ; Disable the WDT. (IRQs not enabled at this point.) ; If interrupts were enabled, we would need to explicitly disable ; them so that the 2nd move to WDTCN occurs no more than four clock ; cycles after the first move to WDTCN. mov WDTCN, #0DEh mov WDTCN, #0ADh ; Enable the Port I/O Crossbar mov XBR2, #40h ; Set P1.6 (LED) as digital output in push-pull mode. orl P1MDIN, #41h orl P1MDOUT,#41h ; Initialize LED to OFF clr GREEN_LED
START:
MOV SP,#50H
MOV TH0,#0D8H
MOV TL0,#0EFH
MOV TMOD,#01H
MOV IE,#82H
MUSIC0:
NOP
MOV DPTR,#DAT ;表頭地址送DPTR
MOV 20H,#00H ;中斷計數器清0
MOV B,#00H ;表序號清0
MUSIC1:
NOP
CLR A
MOVC A,@A+DPTR ;查表取代碼
JZ END0 ;是00H,則結束
CJNE A,#0FFH,MUSIC5
LJMP MUSIC3
MUSIC5:
NOP
MOV R6,A
INC DPTR
MOV A,B
MOVC A,@A+DPTR ;取節拍代碼送R7
MOV R7,A
SETB TR0 ;啟動計數
MUSIC2:
NOP
CPL P1.0
MOV A,R6
MOV R3,A
LCALL DEL
MOV A,R7
CJNE A,20H,MUSIC2 ;中斷計數器(20H)=R7否?
;不等,則繼續循環
MOV 20H,#00H ;等于,則取下一代碼
cpl GREEN_LED
INC DPTR
; INC B
LJMP MUSIC1
MUSIC3:
NOP
CLR TR0 ;休止100毫秒
MOV R2,#0DH
MUSIC4:
NOP
MOV R3,#0FFH
LCALL DEL
DJNZ R2,MUSIC4
INC DPTR
LJMP MUSIC1
END0:
NOP
MOV R2,#64H ;歌曲結束,延時1秒后繼續
MUSIC6:
MOV R3,#00H
LCALL DEL
DJNZ R2,MUSIC6
LJMP MUSIC0
;--------------------------------------------------
DEL:
NOP
DEL3:
MOV R4,#03H
DEL4:
NOP
DJNZ R4,DEL4
NOP
DJNZ R3,DEL3
RET
NOP
DAT:
; db 26h,20h,20h,20h,20h,20h,26h,10h,20h,10h,20h,80h,26h,20h,30h,20h
;db 30h,20h,39h,10h,30h,10h,30h,80h,26h,20h,20h,20h,20h,20h,1ch,20h
;db 20h,80h,2bh,20h,26h,20h,20h,20h,2bh,10h,26h,10h,2bh,80h,26h,20h
;db 30h,20h,30h,20h,39h,10h,26h,10h,26h,60h,40h,10h,39h,10h,26h,20h
;db 30h,20h,30h,20h,39h,10h,26h,10h,26h,80h,26h,20h,2bh,10h,2bh,10h
;db 2bh,20h,30h,10h,39h,10h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,20h
;db 20h,10h,20h,10h,2bh,10h,26h,30h,30h,80h,18h,20h,18h,20h,26h,20h
;db 20h,20h,20h,40h,26h,20h,2bh,20h,30h,20h,30h,20h,1ch,20h,20h,20h
;db 20h,80h,1ch,20h,1ch,20h,1ch,20h,30h,20h,30h,60h,39h,10h,30h,10h
;db 20h,20h,2bh,10h,26h,10h,2bh,10h,26h,10h,26h,10h,2bh,10h,2bh,80h
;db 18h,20h,18h,20h,26h,20h,20h,20h,20h,60h,26h,10h,2bh,20h,30h,20h
;db 30h,20h,1ch,20h,20h,20h,20h,80h,26h,20h,30h,10h,30h,10h,30h,20h
;db 39h,20h,26h,10h,2bh,10h,2bh,20h,2bh,40h,40h,10h,40h,10h,20h,10h
;db 20h,10h,2bh,10h,26h,30h,30h,80h,00H
;-------------
DB 18H, 30H, 1CH, 10H
DB 20H, 40H, 1CH, 10H
DB 18H, 10H, 20H, 10H
DB 1CH, 10H, 18H, 40H
DB 1CH, 20H, 20H, 20H
DB 1CH, 20H, 18H, 20H
DB 20H, 80H, 0FFH, 20H
DB 30H, 1CH, 10H , 18H
DB 20H, 15H, 20H , 1CH
DB 20H, 20H, 20H , 26H
DB 40H, 20H , 20H , 2BH
DB 20H, 26H, 20H , 20H
DB 20H, 30H , 80H , 0FFH
DB 20H, 20H, 1CH , 10H
DB 18H, 10H, 20H , 20H
DB 26H, 20H , 2BH , 20H
DB 30H, 20H , 2BH , 40H
DB 20H, 20H , 1CH , 10H
DB 18H, 10H, 20H, 20H
DB 26H, 20H , 2BH, 20H
DB 30H, 20H, 2BH , 40H
DB 20H, 30H, 1CH , 10H
DB 18H, 20H , 15H , 20H
DB 1CH, 20H , 20H , 20H
DB 26H, 40H, 20H , 20H
DB 2BH, 20H, 26H , 20H
DB 20H, 20H, 30H , 80H
DB 20H, 30H, 1CH , 10H
DB 20H, 10H, 1CH , 10H
DB 20H, 20H, 26H , 20H
DB 2BH, 20H, 30H , 20H
DB 2BH, 40H, 20H , 15H
DB 1FH, 05H, 20H , 10H
DB 1CH, 10H, 20H , 20H
DB 26H, 20H, 2BH , 20H
DB 30H, 20H, 2BH , 40H
DB 20H, 30H, 1CH , 10H
DB 18H, 20H , 15H , 20H
DB 1CH, 20H , 20H , 20H
DB 26H, 40H, 20H , 20H
DB 2BH, 20H, 26H , 20H
DB 20H, 20H, 30H, 30H
DB 20H, 30H, 1CH, 10H
DB 18H, 40H, 1CH, 20H
DB 20H, 20H, 26H, 40H
DB 13H, 60H, 18H , 20H
DB 15H, 40H, 13H , 40H
DB 18H, 80H, 00H
; Simple delay loop.;-----------------------------------------------------------------------------; End of file.END?? 快捷鍵說明
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