【正文】 jnb ti,$ clr ti 第 10 頁 共 18 頁 acall dealy ajmp disp1 zzz1:cjne a,02h,zzz2 movc a,a+dptr mov sbuf,a jnb ti,$ clr ti mov a,0ffh mov sbuf,a jnb ti,$ clr ti acall dealy ajmp disp1 zzz2:cjne a,03h,zzz3 movc a,a+dptr mov sbuf,a jnb ti,$ clr ti mov a,0ffh mov sbuf,a jnb ti,$ clr ti acall dealy ajmp disp1 zzz3:mov 54h,00h disp1:mov a,5ah 。因指令而修改 ret01: 。百位數(shù) mul ab mov r7,a mov a,5eh mov b,0ah 。讀取當前時間 mov 53h,a mov a,56h mov 54h,a clr c 。如果當前值大就跳轉(zhuǎn) dec 45h clr c mov a,00h mov a,44h add a,64h subb a,42h zero1:mov 46h,a mov a,45h mov a,4fh cjne a,03,ddd1 。100 到 150 的表 movc a,a+dptr mov r5,a anl a,0fh mov 5ch,a mov a,r5 swap a anl a,0fh mov 5bh,a exit:jb f0,exit1 。反轉(zhuǎn)放松 mov dptr,table0 dec r4 mov a,r4 cjne a,0ffh,fanz mov r4,05h mov a,05h fanz:movc a,a+dptr mov p1,a ret table0: db 80h db 0c0h db 40h db 60h db 20h db 0a0h table1: dB 00H dB 86H dB 73H dB 61H dB 50H dB 40H dB 31H dB 22H dB 14H dB 07H dB 00H dB 94H dB 88H dB 82H dB 76H dB 71H dB 67H dB 62H dB 58H dB 54H dB 50H dB 46H dB 43H dB 40H dB 36H dB 33H dB 30H dB 28H dB 25H dB 22H dB 20H dB 18H dB 15H dB 13H dB 11H dB 09H dB 07H dB 05H dB 03H dB 02H dB 00H dB 98H dB 97H dB 95H dB 94H dB 92H dB 91H dB 90H dB 88H dB 87H dB 86H dB 85H dB 83H dB 82H dB 81H dB 80H dB 79H dB 78H dB 77H dB 76H dB 75H 第 16 頁 共 18 頁 dB 74H dB 73H dB 72H dB 71H dB 71H dB 70H dB 69H dB 68H dB 67H dB 67H dB 66H dB 65H dB 65H dB 64H dB 63H dB 63H dB 62H dB 61H dB 61H dB 60H dB 59H dB 59H dB 58H dB 58H dB 57H dB 57H dB 56H dB 56H dB 55H dB 55H dB 54H dB 54H dB 53H dB 53H dB 52H dB 52H dB 51H dB 51H dB 50H dB 50H dB 50H dB 49H dB 49H dB 48H dB 48H dB 48H dB 47H dB 47H dB 47H dB 46H dB 46H dB 45H dB 45H dB 45H dB 44H dB 44H dB 44H dB 43H dB 43H dB 43H dB 43H dB 42H dB 42H dB 42H dB 41H dB 41H dB 41H dB 41H dB 40H dB 40H table2: db 29h db 28h db 27h db 26h db 25h db 24h db 23h db 22h db 21h table3: db 57h db 52h db 49h db 45h db 42h db 39h db 37h 第 17 頁 共 18 頁 db 35h db 33h db 31h table4: db 99h db 98h db 97h db 95h db 94h db 93h db 91h db 89h db 88h db 87h db 86h db 84h db 83h db 82h db 81h db 80h db 79h db 78h db 77h db 76h db 75h db 74h db 73h db 72h db 72h db 71h db 70h db 69h db 68h db 68h db 67h db 66h db 65h db 65h db 64h db 63h db 63h db 62h db 61h table5: db 00h db 02h db 04h db 06h db 08h db 10h db 12h db 14h db 16h db 18h db 20h db 22h db 25h db 28h db 30h db 33h db 36h db 39h db 43h db 46h db 49h end 第 18 頁 共 18 頁 四、 系統(tǒng)測試 儀器 1） 數(shù)字示波器 2） 信號發(fā)生器 3） 數(shù)字計數(shù)器 波形測試 利用示波器觀察紅外傳感電信號是否規(guī)則。直到有規(guī)則的方波輸出為止。送步進電機子程序 exit1:pop 05h pop