【正文】 *****************************************************************TABLE1: DB 30H,31H,32H,33H,34H,35H,36H,37H,38h,39hTABLE2: DB 5BH,4DH,61H,64H,65H,20H,49H,6EH,20H,47H,72H,6FH,75H,70H,32H,5DHTABLE3: DB 0A1H,0F6HCHINESE: DB 0CAH,0FDH,0BFH,0D8H,0B5H,0E7H,0C1H,0F7HCHINESE1: DB 0B8H,0F8H,0B6H,0A8H,0D6H,0B5H,0A1H,0C3HCHINESE2: DB 0CAH,0E4H,0B3H,0F6H,0D6H,0B5H,0A1H,0C3HCHINESE3: DB 0C6H,0ABH,0B2H,0EEH,0D6H,0B5H,0A1H,0C3HCHINESE4: DB 0A1H,0BAH,0CAH,0FDH,0BFH,0D8H,0B5H,0E7H,0C1H,0F7H,0A1H,0BBHCHINESE5: DB 0A1H,0BAH,0B7H,0A2H,0CBH,0CDH,0B2H,0BFH,0B7H,0D6H,0A1H,0BBHENGLISH0: DB 6DH,41HENGLISH1: DB 0B2H,0BDH,0BDH,0F8H,0D6H,0B5H,0A1H,0C3HENGLISH2: DB 0A3H,0A5HENGLISH3: DB 0A1H,0BEH,0C8H,0B7H,0B6H,0A8H,0A1H,0BFH。******************************************************************DELAY: MOV R1,00HD2: MOV R2,00H DJNZ R2,$ DJNZ R1,D2 RET。*****************************************************************。T3 lcall delay_8 djnz ZLG_BIT_CNT,ZLG_REC_LP 。Set the number of data received clr ZLG_CS 。T3 lcall delay_8 djnz ZLG_BIT_CNT,ZLG_SEND_LP 。T1ZLG_SEND_LP: 。*****************************************************************。Download data and encode in mode 0 lcall zlg_send mov ZLG_SEND_BUF,ZLG_HUNDRED lcall zlg_send setb ZLG_CS 。Using a,bfunc_display: /*Get the hundred*/ /*Get the decimal and one*/ mov acc,DA_LOW_NUM mov b,10 div ab mov ZLG_DECIMAL,a mov ZLG_ONE,b MOV ACC,DA_HIGH_NUM MOV B,10 DIV AB MOV ZLG_THOUSAND,A MOV ZLG_HUNDRED,B 。==================================================================/*步進(jìn)電流的輸入的增值*/NUM_ADD10: MOV A,DA_HIGH_NUM CJNE A,10,NEXT10 MOV DA_LOW_NUM,00H MOV DA_HIGH_NUM,00HNEXT10: MOV A,DA_LOW_NUM CJNE A,90,NUM_LOW_ADD10 MOV A,DA_HIGH_NUM CJNE A,10,NUM_HIGH_ADD10 MOV DA_LOW_NUM,00H MOV DA_HIGH_NUM,00H AJMP EXIT10NUM_LOW_ADD10: MOV A,DA_LOW_NUM ADD A,10 MOV DA_LOW_NUM,A AJMP EXIT10NUM_HIGH_ADD10: MOV DA_LOW_NUM,00H MOV A,DA_HIGH_NUM INC A MOV DA_HIGH_NUM,AEXIT10: RET。*****************************************************************/*十進(jìn)制轉(zhuǎn)化為十六進(jìn)制*/NUM_CHANGE: MOV A,DA_HIGH_NUM MOV B,64H MUL AB ADD A,DA_LOW_NUM MOV ZLG_LOW_NUM,A MOV A,00H ADDC A,B MOV ZLG_HIGH_NUM,A RET。mov a,r5 pop acc swap a anl a,0F0H mov r0,08HCOMM3: clr c rlc a clr LCD_SCLK mov LCD_SID,C setb LCD_SCLK djnz r0,COMM3 clr LCD_CS RET。================================================================LCD_DISPLAY: MOV A,094H LCALL LCD_WRITE_COMM MOV A,DA_HIGH_NUM MOV DPTR,table1 LCALL WRITE_ascii MOV A,095H LCALL LCD_WRITE_COMM MOV A,DA_LOW_NUM MOV DPTR,table1 LCALL WRITE_ascii MOV A,08CH LCALL LCD_WRITE_COMM mov a,DA_HIGH_NUM MOV DPTR,table1 LCALL WRITE_ascii MOV A,08DH LCALL LCD_WRITE_COMM mov a,DA_LOW_NUM MOV DPTR,table1 LCALL WRITE_ascii RET。CLEARING SCREEN LCALL LCD_WRITE_COMM LCALL DELAY MOV A,091H LCALL LCD_WRITE_COMM MOV DPTR,CHINESE4 LCALL WRITE_headers2 LCALL DELAY2 LCALL DELAY2 MOV R5,8 。Send 0,the extra bit clr TLC5615_DIN setb TLC5615_SCLK clr TLC5615_SCLK setb TLC5615_CS 。Enable /CS mov a,ZLG_HIGH_NUM mov r7,2DA_SEND_LOOP1: mov c, mov TLC5615_DIN,c setb TLC5615_SCLK clr TLC5615_SCLK rl a djnz r7,DA_SEND_LOOP1 。CLEARING SCREEN LCALL LCD_WRITE_COMM MOV A,10000000B 。00H39。===============================================================LCD_INITIALIZE: LCALL DELAY LCALL DELAY LCALL DELAY mov a,00000001B 。*****************************************************************sys_initialize: 。CORTUREL NUMBER SUBBMAIN_LOOP_NEXT: lcall func_display LCALL LCD_DISPLAY LCALL NUM_CHANGE lcall DA_change 。Send the mand of reading keyboard lcall zlg_send lcall zlg_receive 。***************************************************************** org 0000H ljmp MAIN。DOUT of TLC5615 LCD_CS EQU LCD_SID EQU LCD_SCLK EQU 。/KEY of ZLG7289 TLC5615_DIN EQU 。The digit of one ZLG_THOUSAND EQU 43H DISPLAY1 EQU 44H DISPLAY2 EQU 45H ZLG_CS EQU 。The nuber to D/A DA_HIGH_NUM EQU 33H 。*******ZLG7289 PARAMETERS******* ZLG_BIT_CNT EQU 30H 。一種新型數(shù)控直流穩(wěn)壓電源的設(shè)計[J]. 通信電源技術(shù) 2006年02期:山東科學(xué)技術(shù)出版社,2002（2006重印）:高等教育出版社,2000,黃科,:電子工業(yè)出版社,2006。杜勇。參考文獻(xiàn) 。在設(shè)計中畫那些電路圖時，為了畫那些電路圖我用到了實習(xí)時學(xué)習(xí)的protel軟件。它的特點有：能獲得高精度、低紋波、寬范圍、穩(wěn)定可靠、操作方便。本設(shè)計實現(xiàn)了以下功能：(1) 具有多個量程，用戶可根據(jù)實際需要選定。雖然剛開始時不知道結(jié)果會不會做到自己理想的狀態(tài)，但還是愿意去嘗試。Enable /CS mov a,ZLG_HIGH_NUM mov r7,2DA_SEND_LOOP1: mov c, mov TLC5615_DIN,c setb TLC5615_SCLK clr TLC5615_SCLK rl a djnz r7,DA_SEND_LOOP1。啟動D/A轉(zhuǎn)換即可輸出所需要的模擬信號值。模塊框圖見圖31：CPUAT89C51鍵盤輸入電源顯示模塊數(shù)模轉(zhuǎn)換模塊圖31單片機模塊方框圖 按鍵顯示P1口用于鍵盤掃描，使用ZLG7289,鍵盤圖32所示：8鍵0鍵9鍵1鍵清02鍵確認(rèn)3鍵4鍵5鍵ADD6鍵SUBB7鍵圖32按鍵顯示圖按鍵說明：ADD：實現(xiàn)步進(jìn)電流為1MS的增加；SUBB：實現(xiàn)步進(jìn)電流為1MS的減少；0~9： 按鍵數(shù)字；清除：清除當(dāng)前數(shù)值；確認(rèn)：用戶確認(rèn)時，使當(dāng)前鍵入數(shù)值送系統(tǒng)處理，并且切換屏幕到接收部分。ZLG7289A內(nèi)部含有譯碼器，可直接接受BCD碼或16進(jìn)制碼，并同時具有2種譯碼方式，此外，還具有多種控制指令，如消隱、閃爍、左移、右移、段尋址等。TIP42C（10A）是大功率PNP三極管，主要功能是實現(xiàn)功率放大。由于R9是2歐姆，所以可以測量0～1000mA的電流范圍。、。第二種方式為級聯(lián)方式，即16位數(shù)據(jù)序列，