各位大哥,以下程序是一段100进制的程序,可我在用KEIL51单步仿真时,程序到LOOP:MOV 30H,#0时就停止了,但数码管亮了;稍等一下,就会出现
CONNECTION TO TAAGET SYSTEM LOST!
Try Again:please reset your target system and selet'Try ..'
Settings:Opens a dialog where you can select the monitor...
Stop Debugging:
请各位大哥帮帮忙,看下程序是哪出了问题,怎么会出现寻个窗口,如何解决,谢谢,
acall main
org 0bh
acall zd
main:
mov r6,#10
mov 30h,#0
mov 31h,#0
mov tmod,#1
mov th0,#3ch
mov tl0,#0b0h
setb ea
setb et0
setb tr0
LOOP:MOV 30H,#0
mov r7,#0feh
loop1:mov p2,#0ffh(关断数码管)
mov a,@r1
mov dptr,#tab
movc a,@a+dptr
mov p0,a
mov p2,r7
inc r1
mov a,r7
RL a
mov r7,a
cjne r7,#0fbh,loop1
sjmp loop
back:
reti
zd:
mov th0,#3ch
mov tl0,#0b0h
djnz r6,back
mov r0,#30h
inc @r0
cjne @r0,#10,back
mov 30h,#0
inc r0
inc @r0
cjne @r0,#10,back
mov 30h,#0
mov 31h,#0
sjmp back
tab:db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h,86h,8eh
end
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