【正文】 A8H,23H,28H,02H,00H,00H,00H 5 軟件設(shè)計 程序設(shè)計總體思路和結(jié)構(gòu) 程序設(shè)計總體思路 用簡短的匯編程序設(shè)計，實現(xiàn) LED 點陣顯示內(nèi)容，并使顯示的內(nèi)容在屏幕上從左到右的滾動顯示。 用 AT89C5 74LS37 74LS13 74HC154 芯片和 4個 16 16LED 點陣 顯示器構(gòu)成一個 完整的 16 位點陣 LED 顯示 系統(tǒng) 。其中主程序和子程序的流程圖如圖 所示。設(shè)計時可采用如下方法：首先將 LED 顯示屏對應(yīng)的顯示緩沖區(qū)全部清零，即 LED 顯示空白，然后每間隔一個 “ 軟定時器 ” 設(shè)定的動態(tài)顯示時間，顯示緩沖區(qū)依次加入一個漢字點陣數(shù)據(jù)并進行掃描顯示，這樣就可達到 動態(tài) 顯示的效果。即國標(biāo)漢字庫中的每一個字均由 256 點陣來表示。事實上這個漢字屏不僅可以顯示漢字， 也可以顯示在 256 像素范圍內(nèi)的任何圖形。 所以 各個模塊功能正常 。實現(xiàn)了漢字的左移滾動顯示，完整的顯示出了“陜西理工學(xué)院”浮動漢字 。 在設(shè)計中采用的芯片有 AT89C5 74LS37 74LS13 74HC154 和 4 個 16 16LED 點陣顯示器。 單，應(yīng)用廣泛。 通過本次 (64 16 位點陣 LED)的 設(shè)計，理論知識學(xué)習(xí)和實際設(shè)計的結(jié)合鍛煉了我的綜合運用所學(xué)的專業(yè)基礎(chǔ)知識解決實際工程問題的能力，同時也提高我查閱文獻資料、設(shè)計手冊、設(shè)計規(guī)范以及電腦制圖等其他專業(yè)能力水平，而且通過對整體的掌控，對局部的取舍，以及對細節(jié)的斟酌處理，都使我的能力得到了鍛煉，經(jīng)驗得到了豐富。 致謝 在完成此設(shè)計過程中，我曾多次去找 我的指導(dǎo)老師，李建忠老師，每次在遇到實驗中遇到困難或者程序看不懂的時候，我都去找李老師，不管上班下班時間，李老師每次都不厭其煩，不辭辛苦的給我細心講解指導(dǎo)，我才能在實驗室完成實驗，在寫論文過程中老師也給了我很大幫助，在此，我由衷的對李老師對我的指導(dǎo)和教育。初始化 AJMP START ORG 000BH LJMP TIME0 ORG 0030H START:MOV R1,00H MOV R2,00H MOV R3,00H MOV R4,00H MOV R5,00H MOV TMOD,01H MOV TH0,3CH MOV TL0,0B0H MOV IE,82H SETB TR0 MOV DPTR,TAB 。單片機輸出 MOV A,R3 MOVC A,A+DPTR MOV P2,A INC R3 MOV A,R3 MOVC A,A+DPTR MOV P0,A INC R3 MOV P3,R4 LCALL DELAY1MS INC R2 CJNE R2,16,MAIN MOV R2,0 INC R4 CJNE R4,4,MAIN MOV R3,0 MOV R4,0 LJMP MAIN 。移動顯示 CJNE R5,3,NEXT MOV R5,0 INC DPTR INC DPTR INC R1 CJNE R1,144,NEXT MOV R1,0 MOV DPTR,TAB NEXT: MOV TH0,3CH MOV TL0,0B0H RETI 。延時 DEL: MOV R6,250 DJNZ R6,$ DJNZ R7,DEL RET 。DB 000H,000H,01FH,0FCH,010H,000H,025H,000H,03BH,004H,000H,048H,00AH,050H,009H,060H。DB 07FH,0C0H,010H,0A0H,012H,090H,014H,088H,000H,08CH,000H,004H,000H,004H,000H,000H DB 00H,00H,7FH,0FFH,44H,20H,5AH,10H,61H,0E1H,10H,82H,14H,84H,12H,88H DB 10H,0B0H,0FFH,0C0H,10H,0B0H,12H,88H,34H,86H,11H,83H,00H,82H,00H,00H DB 000H,000H,003H,000H,002H,0F8H,022H,010H,022H,050H,03FH,090H,022H,010H,022H,010H DB 07FH,090H,044H,090H,044H,090H,004H,00CH,004H,030H,007H,0C0H,000H,000H,000H,000H DB 000H,010H,011H,010H,011H,020H,01FH,0E0H,022H,048H,000H,048H,038H,008H,027H,048H DB 025H,048H,03FH,0F0H,04AH,090H,042H,090H,07EH,010H,000H,010H,000H,000H,000H,000H DB 000H,000H,000H,010H,000H,010H,000H,010H,008H,010H,008H,010H,008H,010H,00FH,0E0H DB 010H,020H,010H,020H,010H,020H,000H,020H,000H,020H,000H,020H,000H,000H,000H,000H DB 000H,000H,003H,020H,00EH,020H,044H,020H,024H,020H,005H,020H,04AH,024H,02AH,0C2H DB 00BH,07CH,01AH,040H,0E8H,040H,008H,040H,00CH,040H,008H,000H,000H,000H,000H,000H DB 000H,000H,03FH,0FCH,022H,000H,02DH,004H,033H,008H,004H,010H,018H,0A0H,00AH,0C0H DB 052H,080H,035H,0F8H,015H,004H,011H,004H,018H,004H,000H,038H,000H,000H,000H,000H DB 02H,00H,02H,00H,42H,00H,33H,0FEH,00H,04H,02H,08H,02H,10H,02H,00H DB 02H,00H,0FFH,0FFH,02H,00H,02H,00H,02H,00H,06H,00H,02H,00H,00H,00H DB 10H,10H,20H,10H,0C0H,11H,5FH,0D2H,75H,7CH,55H,50H,55H,50H,35H,50H DB 0D5H,50H,55H,50H,75H,7FH,5FH,0D0H,40H,10H,40H,30H,00H,10H,00H,00H DB 08H,20H,08H,0C0H,0BH,00H,0FFH,0FFH,09H,01H,08H,82H,00H,04H,3FH,0F8H DB 20H,00H,20H,00H,20H,00H,7FH,0FCH,20H,02H,00H,02H,00H,0EH,00H,00H DB 24H,08H,24H,10H,24H,60H,25H,80H,7FH,0FFH,0C5H,00H,44H,80H,00H,40H DB 24H,40H,12H,40H,00H,40H,0FFH,0FFH,00H,80H,01H,80H,00H,80H,00H,00H DB 02H,20H,0CH,20H,88H,20H,69H,20H,09H,20H,09H,22H,89H,21H,69H,7EH DB 09H,60H,09H,0A0H,19H,20H,28H,20H,0C8H,20H,0AH,60H,0CH,20H,00H,00H DB 00H,10H,00H,10H,00H,10H,0FFH,10H,11H,10H,11H,10H,11H,10H,11H,10H DB 11H,10H,11H,32H,11H,11H,11H,02H,33H,0FCH,11H,00H,00H,00H,00H,00H DB 08H,20H,08H,22H,08H,41H,0FFH,0FEH,08H,80H,08H,01H,11H,81H,11H,62H DB 11H,14H,0FFH,08H,11H,14H,11H,64H,31H,82H,10H,03H,00H,02H,00H,00H DB 04H,08H,04H,08H,04H,10H,04H,20H,04H,40H,04H,80H,05H,00H,0FFH,0FFH DB 05H,00H,44H,80H,24H,40H,34H,20H,04H,10H,0CH,18H,04H,10H,00H,00H DB 49H,40H,4AH,51H,4CH,6AH,7FH,0C4H,4CH,4AH,8AH,71H,88H,42H,3FH,84H DB 64H,98H,0A5H,0E0H,3EH,0BEH,24H,81H,24H,89H,7FH,81H,20H,07H,00H,00H DB 01H,00H,02H,00H,04H,00H,1FH,0FFH,0E2H,02H,12H,22H,12H,22H,12H,22H DB 12H,22H,0FFH,0FEH,12H,22H,12H,22H,32H,62H,16H,26H,02H,02H,00H,00H DB 01H,40H,02H,40H,0EH,40H,0F3H,0FEH,12H,44H,12H,48H,09H,00H,11H,28H DB 0F2H,0A8H,2AH,0A8H,25H,0FFH,2AH,0A8H,32H,0A8H,23H,28H,02H,00H,00H,00H END