?? 廣告燈.asm
字號:
;AT90S8515的PA口LED廣告燈演示程序
.include"8515def.inc" ;器件配置文件
.org $0000 ;設置起始地址
.equ leddata=0x0250
rjmp reset
.cseg
.org $0010
RESET:ldi r16,$5f ;設置堆棧
out spl,r16
ldi r16,$02
out sph,r16
ldi r16,$90
mov r15,r16
ser r16 ;設置A口為輸出口
out ddra,r16 ;設置A口方向寄存器
L0:ldi zl,low(leddata*2)
ldi zh,high(leddata*2)
L1:lpm
mov r16,r0
cpi r16,$0a
breq L0
out porta,r16
rcall delay ;調用延時子程序
ld r0,z+
rjmp L1
DELAY:push r15 ;延時子程序
L2:push r15
L3:push r15
L4:dec r15
brne l4
pop r15
dec r15
brne l3
pop r15
dec r15
brne l2
pop r15
ret
.cseg ;設置LED廣告燈數據表
.org leddata
.db 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd
.db 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd
.db 0x00,0x18,0x3c,0x7e,0xff,0x7e,0x3c,0x18
.db 0x00,0x18,0x3c,0x7e,0xff,0x7e,0x3c,0x18
.db 0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x8f,0xc7,0xe3,0xf1
.db 0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x8f,0xc7,0xe3,0xf1
.db 0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc
.db 0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc
.db 0xff,0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7
.db 0xff,0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7
.db 0xff,0x00
.db 0xff,0x00
.db 0xff,0x00
.db 0xff,0x00
.db 0x0a,0x0a
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