单片机芯片.doc

1、1行列式键盘接口：EA/VP31X119 X218RESET9RD17 WR16INT012 INT113T014 T115P101 P112P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P30TXD 11RXD 10U18051VCC与与 6MHZC2 C1 R110kVCCR2200 R31kC322uFVCCS50S40S70S60S10S00S35S20S100R11

2、10kR1310kR1410kR1810kR1210kR1510kR1610kR1710kS51S41S71S61S11S01S30S21S52S42S72S62S12S02S31S22S53S43S73S63S13S03S32S23S54S44S74S64S14S04S33S24S55S45S75S65S15S05S34S25S56S46S76S66S16S06S37S26S57S47S77S67S17S07S36S2712345611128 U274LS3012 3U3A74LS00行列式键盘接口程序：ORG 0000HAJMP 0030HORG 0003HLJMP SERVEORG 00

3、1BHRETIORG 0030HMAIN：MOV P1 ，#0FFH ；接收线置 1MOV P2， #0 ；扫描线置 0SETB EA ；开中断SETB IT0 ；置 INT0 边沿触发SETB EX0 ；开 INT0 的中断.；测试子程序SCAN：MOV R7，#0；计数单元清 0JB 20H.0，ONE；测试 20H 单元位（1 号线）INC R7；1 号线为 0，计数单元加 1MOV R6 ，#1 ；存线号 1ONE： JB 20H.1，TWO ；测试 20H 单元位（2 号线）INC R7 ；2 号线为 0，计数单元加 1MOV R6 ，#2 ；存线号 2TWO：JB 20H.2，TH

4、REEINC R7MOV R6 ，#3THREE：JB 20H.3，FOURINC R7MOV R6 ，#4FOUR：JB 20H.4，FIVEINC R7MOV R6 ，#5FIVE：JB 20H.5，SIX2INC R7MOV R6 ，#6SIX：JB 20H.6 ，SEVENINC R7MOV R6 ，#7SEVEN：JB 20H.7，EIGHTINC R7MOV R6 ，#8EIGHT：RET；延时子程序（晶振 12MHZ,定时 20ms）DELAY：MOV TMOD ，#10H ；设置 T1 为方式 1 定时MOV TL1，#0E0H ；B1E0H 取反加 10100 1110 00

5、01 1111+1=4E20HMOV TH1，#0B1H；16384+3584+31=19999=20000us=20msSETB ET1 ；开 T1 中断SETB PT1 ；置 T1 中断为高优先级SETB TR1 ；启动 T1 定时ORL PCON ，#1 ；启动空闲方式CLR TR1CLR PT1CLR ET1RET；按键所引起的中断服务程序：SERVE：LCALL DELAY ；延时去抖动MOV 20H，P1 ；读接收线LCALL SCAN ；调用测试子程序DJNZ R7，REJ ；多键按下，不作处理MOV 31H，R6 ；单键按下，接收线号送 31H 单元MOV P2， #0FFH

6、；扫描线写 1MOV P1， #0 ；接收线写 0MOV 20H，P2 ；读扫描线LCALL SCAN ；调测试子程序DJNZ R7，REJ ；多键按下，不作处理XCH A，R6 ；单键按下，扫描线号送 ASWAP A ；扫描线号移到高 4 位ORL 31H，A ；求得按键特征值XCH A，R6；MOV P1， #0FFH ；接收线复位MOV P2， #0 ；扫描线复位REJ： JNB P3.2 ，$ ；等待按键释放（INT0 引脚置 1）LCALL DELAY ；延时去抖动CLR IE0 ；清中断标志位RETI7211(A)真值表DS1 DS2 CS1 CS2 功能0 0 0 0 数据存储在

7、 D40 1 0 0 数据存储在 D31 0 0 0 数据存储在 D21 1 0 0 数据存储在 D1X X 其他 未选中3a8-g8D8a7-g7 a6-g6 a5-g5 a4-g4 a3-g3 a2-g2 a1-g1D7 D6 D5 D4 D3 D2 D1B0B1 DA2DA1CS1B3B2 CS2PA6PA5ICM7211(1) BPOSCR2R1PA0 PA1 PA2COMPA3 PA4B0B1 DA2DA1CS1B3B2 CS2BPOSCICM7211(2)C215pC115pEA/VP31X119 X218RESET9RD17 WR16INT012 INT113T014 T115P

8、101 P112P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P30TXD 11RXD 10U1 8051D034 D133D232 D331D430 D529D628 D727PA0 4PA1 3PA2 2PA3 1PA4 40PA5 39PA6 38PA7 37PB0 18PB1 19PB2 20PB3 21PB4 22PB5 23PB6 24PB7 25PC0 14PC

9、1 15PC2 16PC3 17PC4 13PC5 12PC6 11PC7 10RD5 WR36A09 A18RESET35 CS6U3 8255OC1 C111D31Q 22D42Q 53D73Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U2 74LS37312 3U3A 74LS00与与12MHZ S0 C322ufVccPA7PA5PA0 PA1 PA2 PA3 PA4VccR3VccLCD7211 子程序：LCD：MOV DPTR，#8000H；置 8255PA 口地址MOV R0，#20H；显示数据缓冲区首地址送 R0MOV R1，#0

10、4H；设置 7211(2)的位数MOV R2，#07H；设置 D1 显示特征LP1：MOV A，#0FFH；禁止 7211 操作MOVX DPTR，A；MOV A,R2；形成 Di 显示字高位SWAP A；A=70HORL A,R0；A 或R0送 AMOVX DPTR,A；送 Di 显示字DEC R2；INC R0；DJNZ R1,LP1；MOV R1,#04H；设置 7211(1)的位数MOV R2,#0BH；设置 D4 显示特征LP2: MOV A,#0FFH；禁止 7211 操作MOVX DPTR,A；MOV A,R2；SWAP A；ORL A,R0；MOVX DPTR,A；DEC R2

11、；INC R0；DJNZ R1,LP2；RETCentronics 并行接口标准。Centronics 标准定义了 36 芯插头座，其中数据线 8 根，控制输入线 4 根，状态输出线 5 根，+5V 电源线 l 根，地线 15 根，另有 3 根空闲。采用 8255 实现单片机与 uP 打印机接口：4R2R1C215pC115pEA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P101P112P123P134P145P156P167P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P

12、21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P 30TXD 11RXD 10U1 8051D034D133D232D331D430D529D628D727PA0 4PA1 3PA2 2PA3 1PA4 40PA5 39PA6 38PA7 37PB0 18PB1 19PB2 20PB3 21PB4 22PB5 23PB6 24PB7 25PC0 14PC1 15PC2 16PC3 17PC4 13PC5 12PC6 11PC7 10RD5WR36A09A18RESET35CS6U3 8255OC1C111D31Q 22D42Q 53D7

13、3Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U2 74LS373与与12MHZS0C322ufVccDB0DB1DB2DB3DB4DB5DB6DB7uP与与与ACKSTB123U4A74F00VccR110KORG 0000HLJMP MAINORG 0013HLJMP INTSMAIN:MOV R0,#7FH ；控制口地址MOV A,#0A0H ；工作方式控制字（A 口方式 1 输出）MOV R0,A ；控制字写入 8255MOV R1,#20H ；打印数据缓冲区首地址MOV R2,#10H ；待打印字符数MOV E1,84H ；允许 INT

14、1 中断，EA=1,EX1=1INTS:MOV R0,#7CH ；8255A 口地址MOV A,R1 ；打印数据送 AMOVX R0,A ；打印数据送 8255A 口INC R1 ；修改字符地址DJNZ LAST ；待打印字符数未传送完转 LASTMOV EI,#00H ；待打印字符数传送完后禁止中断LAST:RETI； ；中断返回5a8-g8D8a7-g7 a6-g6 a5-g5 a4-g4 a3-g3 a2-g2 a1-g1D7 D6 D5 D4 D3 D2 D1B0B1 DA2DA1CS1B3B2 CS2PA6PA5ICM7211(1) BPOSCPA0PA1PA2COMPA3PA4 B

15、0B1 DA2DA1CS1B3B2 CS2BP OSCICM7211(1)PA7PA5PA0PA1PA2PA3PA4VccVPP1A122A73 A64 A55A46 A37 A28A19 A010Q0 11Q1 12Q2 13Q3 15Q4 16Q5 17Q6 18Q7 19CE20A1021OE22A1123A924 A825NC 26P27U42764A010 A19A28 A37A46 A55A64 A73A825 A924A1021 A1123A122CS120 CS226 WE27OE22D0 11D1 12D2 13D3 15D4 16D5 17D6 18D7 19U56264I

16、N-026 msb2-1 212-2 20IN-127 2-3 192-4 18IN-228 2-5 82-6 15IN-31 2-7 14lsb2-8 17IN-42 EOC 7IN-53 ADD-A 25IN-64 ADD-B 24ADD-C 23IN-75 ALE 22ref(-)16 ENABLE 9START 6ref(+)12 CLOCK 10U8 ADC0809D12 Q 9Q 8CLK111013PRECLRU9B74LS74D2 Q 5Q 6CLK341PRECLRU9A 74LS74A1 B2C3G2A4 G2B5 G16Y7 7Y69Y5 10Y4 11Y312Y2 13

17、Y1 14Y015U374LS138AD012 PA0 21AD113 PA1 22AD214 PA2 23AD315 PA3 24AD416 PA4 25AD517 PA5 26AD618 PA6 27AD719 PA7 28PB0 29CE8 PB1 30RD9 PB2 31WR10 PB3 32IO/M7 PB4 33ALE11 PB5 34PB6 35PB7 36TMROUT6 PC0 37PC1 38TMRIN3 PC2 39PC3 1PC4 2RESET4 PC5 5U6 8155R2R1C215pC115pEA/VP31X119 X218RESET9RD17 WR16INT012

18、 INT113T014 T115P101 P112P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P30TXD 11RXD 10U1 89C51 OC1 C111D31Q 22D42Q 53D73Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U274LS373与与12MHZS0C322ufVccVccR110KD034 D133D2

19、32 D331D430 D529D628 D727PA0 4PA1 3PA2 2PA3 1PA4 40PA5 39PA6 38PA7 37PB0 18PB1 19PB2 20PB3 21PB4 22PB5 23PB6 24PB7 25PC0 14PC1 15PC2 16PC3 17PC4 13PC5 12PC6 11PC7 10RD5 WR36A09 A18RESET35 CS6U7 8255DB0DB1DB2DB3DB4DB5DB6DB7Vcc20Iout1 11lsbDI07 Iout212DI16 DI25Rfb 9DI34 DI416 Vref 8DI515DI614 msbDI713

20、 ILE 19WR2 18CS1 WR12Xfer17U12DAC0832(2)Vcc20Iout1 11lsbDI07 Iout212DI16 DI25Rfb 9DI34 DI416 Vref 8DI515DI614 msbDI713 ILE 19WR2 18CS1 WR12Xfer17U11DAC0832(1)uP与与与ACKSTB32 184U13A455856 7U13B4558+5VY6Y0INT0A0A1A2VCCVCCVCCVCCVCCVCC+5V123U10A74LS00456U10B74LS008910U10C74LS00INT1S00VccRS01S02S03S10S11S

21、12S13S20S21S22S23S30S31S32S33RRRR RR RVccVccA0A1A8COM9 1B 11C16 2B 22C15 3B 33C14 4B 44C13 5B 55C12 6B 66C11 7B 77C10U14DS2004P1.7P1.612456 U16A74LS206VPP1A122A73A64A55A46A37A28A19A010Q0 11Q1 12Q2 13Q3 15Q4 16Q5 17Q6 18Q7 19CE20A1021OE22A1123A924A825NC 26P27 U42764A010A19A28A37A46A55A64A73A825A924A1

22、021A1123A122CS120CS226WE27OE22D0 11D1 12D2 13D3 15D4 16D5 17D6 18D7 19U56264A1B2C3G2A4G2B5G16Y7 7Y6 9Y5 10Y4 11Y3 12Y2 13Y1 14Y0 15U374LS138R2R1C215pC115pEA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P101P112P123P134P145P156P167P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 2

23、3P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P 30TXD 11RXD 10U189C51 OC1C111D31Q 22D42Q 53D73Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U274LS37312MHZS0C322ufVccVccR110K Y0VCCVcc与与与与与与与7a8-g8D8a7-g7 a6-g6 a5-g5 a4-g4 a3-g3 a2-g2 a1-g1D7 D6 D5 D4 D3 D2 D1B0B1 DA2DA1CS1B3B2 CS2PA6PA5ICM7211(1) BPOSCPA

24、0 PA1 PA2COMPA3 PA4B0B1 DA2DA1CS1B3B2 CS2BPOSCICM7211(1)PA7PA5PA0 PA1 PA2 PA3 PA4VccA1 B2C3G2A4 G2B5 G16Y7 7Y69Y5 10Y4 11Y312Y2 13Y1 14Y015U374LS138AD012 PA0 21AD113 PA1 22AD214 PA2 23AD315 PA3 24AD416 PA4 25AD517 PA5 26AD618 PA6 27AD719 PA7 28PB0 29CE8 PB1 30RD9 PB2 31WR10 PB3 32IO/M7 PB4 33ALE11 P

25、B5 34PB6 35PB7 36TMROUT6 PC0 37PC1 38TMRIN3 PC2 39PC3 1PC4 2RESET4 PC5 5U6 8155R2R1C215pC115pEA/VP31X119 X218RESET9RD17 WR16INT012 INT113T014 T115P101 P112P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P30TXD 11RX

26、D 10U1 89C51与与12MHZS0C322ufVccVccR110KVCCS00VccR S01S02S03S10S11S12S13S20S21S22S23S30S31S32S33RRRR RR RA8与与与与与与与与与INT0 12456U16A74LS20D8 D7 D6 D5 D4 D3 D2 D1ID0 ID4ID1 ID6MODE ID3 WRITEPA6ID2PA5 ICM7218BPA0 PA1 PA3 PA4DPPA7PA2A1 B2C3G2A4 G2B5 G16 Y7 7Y6 9Y5 10Y4 11Y3 12Y2 13Y1 14Y0 15U374LS138AD012

27、PA0 21AD113 PA1 22AD214 PA2 23AD315 PA3 24AD416 PA4 25AD517 PA5 26AD618 PA6 27AD719 PA7 28PB0 29CE8 PB1 30RD9 PB2 31WR10 PB3 32IO/M7 PB4 33ALE11 PB5 34PB6 35PB7 36TMROUT6 PC0 37PC1 38TMRIN3 PC2 39PC3 1PC4 2RESET4 PC5 5U6 8155R2R1C215pC115pEA/VP31X119 X218RESET9RD17 WR16INT012 INT113T014 T115P101 P11

28、2P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P 30TXD 11RXD 10U1 89C51与与12MHZS0C322ufVccVccR110KVCCS00VccR S01S02S03S10S11S12S13S20S21S22S23S30S31S32S33RRRR RR RA8与与与与与与与与与(2)INT0 12456U16A74LS20ID5DIGIT1ID7DIGI

29、T2DIGIT3DIGIT4DIGIT5DIGIT6DIGIT7DIGIT8 SEGgSEGfSEGeSEGdSEGcSEGbSEGaIN-026 msb2-1 212-2 20IN-127 2-3 192-4 18IN-228 2-5 82-6 15IN-31 2-7 14lsb2-8 17IN-42 EOC 7IN-53 ADD-A 25IN-64 ADD-B 24ADD-C 23IN-75 ALE 22ref(-)16 ENABLE 9START 6ref(+)12 CLOCK 10U8ADC0809D12 Q 9Q 8CLK111013PRECLRU9B74LS74D2 Q 5Q 6C

30、LK341PRECLRU9A74LS74A1 B2C3G2A4 G2B5 G16Y7 7Y69Y5 10Y4 11Y312Y2 13Y1 14Y015U374LS138R2R1C215pC115pEA/VP31X119 X218RESET9RD17 WR16INT012 INT113T014 T115P101 P112P123 P134P145 P156P167 P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P30TXD

31、 11RXD 10U1 89C51与与12MHZS0C322ufVccVccR110KVcc20Iout1 11lsbDI07 Iout212DI16 DI25Rfb 9DI34 DI416 Vref 8DI515DI614 msbDI713 ILE 19WR2 18CS1 WR12Xfer17 U12DAC0832(2)Vcc20Iout1 11lsbDI07 Iout212DI16 DI25Rfb 9DI34 DI416 Vref 8DI515DI614 msbDI713 ILE 19WR2 18CS1 WR12Xfer17 U11DAC0832(1)32 184U13A455856 7U

32、13B4558+5VY6A0A1A2VCCVCCVCCVCCVCC+5V1 23U10A74LS004 56U10B74LS008910U10C74LS00PC3VccVCCA/D与D/A与与与与8A1B2C3G2A4G2B5G16Y7 7Y6 9Y5 10Y4 11Y3 12Y2 13Y1 14Y0 15U374LS138R2R1C215pC1 15pEA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P101P112P123P134P145P156P167P178P00 39P01 38P02 37P03 36P04 35P05 34P06 3

33、3P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P 30TXD 11RXD 10U189C51 OC1 C111D31Q 22D42Q 53D73Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U274LS373与与12MHZS0C322ufVccR110KD034D133D232D331D430D529D628D727PA0 4PA1 3PA2 2PA3 1PA4 40PA5 39PA6 38PA7 37PB0 18PB1 19PB2 20PB3 21PB4 22P

34、B5 23PB6 24PB7 25PC0 14PC1 15PC2 16PC3 17PC4 13PC5 12PC6 11PC7 10RD5WR36A09A18RESET35CS6U78255DB0DB1DB2DB3DB4DB5DB6DB7uP与与与ACKSTB8910U10C74LS00与与与与与与与VCCA0A1VccEOCA1B2C3G2A4G2B5G16Y7 7Y6 9Y5 10Y4 11Y3 12Y2 13Y1 14Y0 15U374LS138R2R1C215pC115pEA/VP31X119X218RESET9RD17WR16INT012INT113T014T115P101P112P1

35、23P134P145P156P167P178P00 39P01 38P02 37P03 36P04 35P05 34P06 33P07 32P20 21P21 22P22 23P23 24P24 25P25 26P26 27P27 28PSEN 29ALE/P 30TXD 11RXD 10U1 89C51 OC1C111D31Q 22D42Q 53D73Q 64D84Q 95D135Q 126D146Q 157D177Q 168D188Q 19U274LS37312MHZS0C322ufVccR110KD034D133D232D331D430D529D628D727PA0 4PA1 3PA2

36、2PA3 1PA4 40PA5 39PA6 38PA7 37PB0 18PB1 19PB2 20PB3 21PB4 22PB5 23PB6 24PB7 25PC0 14PC1 15PC2 16PC3 17PC4 13PC5 12PC6 11PC7 10RD5WR36A09A18RESET35CS6U7 8255I/O与与与与VCCA0A1COM9 1B11C16 2B 22C15 3B 33C14 4B 44C13 5B 55C12 6B 66C11 7B 77C10U14DS2004 12U15A 74F0734U15B 74F0756U15C 74F0798U15D 74F071110U15E 74F071312U15F 74F07+5V