[8051] 강의자료.PDF

Size: px

Start display at page:

Download "[8051] 강의자료.PDF"

희경 금
7 years ago
Views:

5 CY AC F0 RS1 RS0 OV - P

6 0xFF 0x80 0x7F 0x30 0x2F 0x20 0x1F 0x18 0x17 0x10 0x0F 0x08 0x07 0x00 0x0000 0x0FFF 0x1000 0xFFFF 0x0000 0xFFFF RAM SFR

7 SMOD GF1 GF0 PD IDL

8 U? EA/VP X1 X2 RESET INT0 INT1 T0 T1 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P RD 17 WR 16 PSEN ALE/P TXD 11 RXD 10 RxD TxD INT0 INT1 T0 T1 WR RD RESET Pin ALE/PROG PSEN EA/Vpp XTAL 1, Address Latch Enable Program Strobe ENable External Access Enable, P0~3 A0~A15 D0~D7 Address Bus Data Bus

9 OSC T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1 T2 ALE PSEN (1) (2) (5) (7) RD/WR PORT 2 (3) ADDRESS A15 A8 ADDRESS A15 A8 PORT 0 (3) (4) (6) (8) FLOAT A7 - A0 FLOAT INST IN A7 - A0 FLOAT INST IN FLOAT

10 OSC ALE T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1 T2 (1) (2) PSEN RD/WR (5) (7) PORT 2 (3) ADDRESS A15 A8 PORT 0 INST IN (3) (4) (6) FLOAT A7 - A0 FLOAT DATA IN FLOAT (8) ADDRESS OR FLOAT

11 OSC ALE PSEN RD/WR T12 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T1 T2 (1) (5) (6) PORT 2 (2) ADDRESS A15 A8 PORT 0 INST IN (2) (3) FLOAT A7 - A0 DATA OUT FLOAT (4) ADDRESS OR FLOAT

12 RD WR T1 T0 INT1 INT0 TxD RxD read write Timer external input external interrupt Transmit data receive data

13 pin P1 = led Led <<= 1 Led = 0xf1 P10 0xfe( ) 0xfc( ) 0xfd( ) P11 0xfd( ) 0xfa( ) 0xfb( ) P12 0xfb( ) 0xf6( ) 0xf7( ) P13 0xf7( ) 0xee( ) 0xff( )

14 led LED led = 0xfe #include <win51.h> #define SELECT (*(unsigned char *)(0x2fc48)) No SELECT = 0x9e P1 = led led = led << 1 led = led 0xf1 led == 0xff? Yes Led = 0xfe P1 LED LED 1bit left shift P13 LED Void delay (int del) { while(del--); } Void main(void) { unsigned char led=0xf2 // led on SELECT = 0x90 // led I/O do{ P1 = led; // led } delay(30000); led <<=1; // led on 1bit left shift led = 0xf1; // if(led==0xff) led=0xfe; } while(1); //

15 No A reg. LED P1 A reg. A reg. 1bit left shift A reg. OR ( B) A == FF? Yes P1 LED LED 1bit left shift A reg P13 LED SELECT EQU 2fc48; I/O IO/SEL EqU ; I/O ; 8051 ORG 0 SJMP START ; ; START: MOV SP, #60H ; MOV A, #IO_SEL ; MOV DPTR, #SELECT ; LATCH1 A MOV A, # B ; LED ON LP1: MOV P1, A ; LED ON CALL DELAY ; LED ON RL A ; LED ON 1 ORL A, #0F0H ; CJNE A, #0FFH, LP1 ; P13 ON MOV A, # B ; P13 ON LED ON SJMP LP1 ; ; LED DELAY : MOV R0, #2 ; R0 2 DELAY1 : MOV R1, #0 ; R1 0(256) DELAY2 : MOV R2, #0 ; R2 0(256) DELAY3 : NOP DJNZ R2, DELAY3 ; R2=R2-1 0 DELAY3 DJNZ R1, DELAY2 ; R1=R1-1 0 DELAY2 DJNZ R0, DELAY1 ; R0=R0-1 0 DELAY1 RET END

16 PC PC ~

17 0 / 0 1 / H 000BH 0013H 001BH 0023H

18 TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 SM0 SM1 SM2 REN B8 RB8 TI RI

19 EA - - ES ET1 EX1 ET0 EX0

20 - - - PS PT1 PX1 PT0 PX0

21 0 0 / / 1 3 4

23 led = 0xfe led led = led << 1 led 1bit left shift SELECT = 0x9c led = led 0xf P1 = led ET1 = EX1 = EA = 1 1led No 1 :, led == 0xff? Yes led = 0xfe P13 led ON While(1) P1 = led 1led

24 #include <win51.h> #define SELECT (*(unsigned char *)(0x2fc48)) Void main(void) { } // led INT1 I/O SELECT = 0x90 // led I/O led = 0xfe; P1 = led; // led IT1 = 1; // 1 EX1 = 1; // EA = 1; // while(1); // // 1 Void EXINT1(void) interrupt 2 { } // led 1, // led = (led << 1); // P13 ON, led if(led==0xff) led = 0xfe; P1 = led;

25 0013H. A reg. left shift led 1bit Buffer A reg. OR ( B) P1 A reg. ET1 = EX1 = EA = 1 1led No A == 0xff? Yes 1 :, A reg. ( B) P13 led ON SJMP$ P1 A reg. 1led

26 SELECT EQU 2FC48H ; latch1 address IO_SEL EQU B ; I/O ; 8051 ORG 0000H SJMP START ; 1 ORG 0013H SJMP INT_1 ; ORG 0030H START: MOV SP, #60H ; ; LED INT1 I/O MOV A, #IO_SEL MOV DPTR, #SELECT A MOV A, # B ; LED MOV P1, A ; LED WAIT: INT_1: SKIP: ; SETB IT1 ; 1 SETB EX1 ; SETB EA ; SJMP WAIT ; ; RL A ; LED 1 ORL A, #0F0H ; CJNE A, #0FFH, SKIP ; P13 ON MOV A, #0FEH ; LED MOV P1, A ; 1 RETI ; END

27 TH0 TL0 TH1 TL1 Clock Overflow +1 TCON reg. / 0 / 1 TF0/TF1 bit set 8bit 8bit

28 GATE C/T M1 M0 GATE C/T M1 M0 timer1 timer0 M1 M

29 TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0

31 led = 0xfe led led = led << 1 led 1bit left shift SELECT = 0x9e led = led 0xf , GATE OFF - = 65536(0x0000) No led == 0xff? Yes led = 0xfe P13 led ON P1 = led 1led P1 = led 1led 1

32 #include <win51.h> // #define SELECT (*(unsigned char *)(0x2fc48)) // led // Unsigned char led; Void main(void) { // led I/O SELECT = 0x9e; led = 0xfe; // 1, 1,, // P13 ON, led TMOD = 0x10; TH1 = TL1 = 0; // 0000(65536) P1 = led; // LED ET1 = 1; // 1 TR1 = 1; // 1 } EA = 1; // while(1); // // 1 Void TIMER1(void) interrupt 3 { } // led 1, // led = (led << 1) 0xf1 if(led==0xff) led = 0xfe; P1 = led; // led on

33 Buffer A reg. left shift led 1bit 1 -, GATE OFF - = 65536(0x0000) P1 A reg. (0FEH) A reg. OR (0F0H) No A reg. == 0FFH? Yes A A reg. ( ) P13 led ON 1 P1 A reg. 1led

34 MOV TH1, #0 SELECT EQU 0FC48H ; I/O MOV TL1, #0 ; LED ON IO_SEL EQU B ; BUFFER/A,B MOV A, # B ; 8051 MOV P1, A ; LED ORG 0000H ; 1 SJMP START ; SETB ET1 ; 1 ; 1 SETB TR1 ; 1 ORG 001BH SETB EA ; SJMP TIMER1 ; SJMP $ ; ; ; 1 ORG 0030H INT_1: START: RL A ; LED 1 MOV SP, #60H ; ORL A, #0F0H ; ; BUFFER/A,B CJNE A, #0FFH, SKIP ; P13 ON MOV A, #IO_SEL MOV A, #0FEH ; LED MOV DPTR, #SELECT SKIP: A MOV P1, A ; LED ON ; 1 RETI ; MOV TMOD, #10H END ; ; 1, 1,, ; 0000(65536)

36 SM0 SM1 SM2 REN TB8 RB8 TI RI

37 SM0D GF1 GF0 PD IDL (SCON ) SMOD = 0 SMOD = 1 1, 3 1 /2 1 2 /4 /2 0.

38 PCON SMOD C/T TMOD 0, 1 MHz 12 MHz X X X X 2, 375 khz 12 MHz 1 1 X X 1,3, 62.5 khz 12 MHz FFH 19.2 K MHz FDH 9.6 K MHz FDH 4.8 K MHz FAH 2.4 K MHz F4H 1.2 K MHz E8H MHz DH MHz H MHz FEEBH

39 REN=0 SBUF TI=1 REN=1 RI=0 RI=1 SBUF

40 Start Bit 8bit Data 10bit Frame Stop Bit TI=1 SBUF SBUF TI=0 TI=1 REN=1 SBUF RI=1 RI=0

41 Start Bit bit Data 11bit Frame TB8 Stop Bit TI=1 TB8=0 SBUF TB8=1 TI=0 TI=1 SBUF REN=1 RB8=0 SBUF RB8 = RB8=1 RI=0 RI=1

42 Start Bit bit Data 11bit Frame TB8 Stop Bit TI=1 TB8=0 SBUF TB8=1 TI=0 TI=1 SBUF REN=1 SBUF RB8=1 RI=1 RI=0

43 DIP SWITCH ON ON LEVEL-METER DIP SELECT = 0x9b T0 = H L H 74LS165LD(load) SELECT = 0x97 HLH T0 = 0 DIP IN DIP 74LS165 0 REN = 1 REN = 0 No No RI = 1?? TI = 1?? Yes RI=0 Select = 0x9f Yes RI TI = 0 74LS165 TI SBUF

44 #include <win51.h> // #define SELECT (*(unsigned char *)(0x2fc48)) // led //. Buffer Void TX_D(unsigned char buffer) { // SHIFT(74LS164) SELECT = 0x97; T0 = 0; REN = 0; // while(!ti); // TI = 0; // SBUF = buffer; // buffer T0 = 1; } //. Char RX_D(void) { // PISO(74LS165)LOAD SELECT = 0x9b; T0 = 1; // LD = H T0 = 0; // LD = L T0 = 1; // LD = H // 74LS165 REN = 1; // RI = 0; while(!ri); // RI = 0; // SELECT = 0x9f; return(sbuf); // } //, Void delay(int i) { while(i--); } Void main(void) { unsigned char dip; // 0 SM0 = 0; SM1= 0; TI = 1; // // do{ dip = RX_D(); // delay(5000); // TX_D(dip); // } while(1); }

45 DIP SWITCH ON ON LEVEL-METER DIP DIP 74LS165LD(load) Buffer2/B Buffer1/B HLH 74LS165 T0 H L H T0 H L H DIP IN 0 No REN = 1 RI = 1? RI=0 Yes? RI No / REN = 0 TI = 1? TI=0 Yes? TI A reg.

46 SELECT EQU 0FC48H ; LATCH1 ; 8051 ORG 0000H SJMP START ; ; ORG 0030H START : MOV SP, #60H ; ; 0 CLR SM0 CLR SM1 SETB T0 ; T0=H SETB TI ; ; LOOP : ACALL RX_D ; ACALL DELAY ; ACALL TX_D ; SJMP LOOP ;. B RX_D : MOV A, # B ; BUFFER2/B MOV DPTR, #SELECT A ; PISO(74LS165)LOAD SETB T0 ; LD = H CLR T0 ; LD = L SETB T0 ; LD = H ; 74LS165 SETB REN ; CLR RI ; JNB RI,$ ; CLR RI ; TX_D : MOV B, SBUF ; ; BUFFER2/B MOV A, # B MOV DPTR, #SELECT A RET ; ;. B MOV A, # B MOV DPTR, #SELECT ; SHIFT(74LS164) A ; CLR T0 ; T0 L (74LS164 B L ) CLR REN ; JNB TI, $ ; ; CLR TI ; MOV SBUF, B ; SETB T0 ; TO L (74LS164 B H ) RET ; ;, DELAY : MOV R0, #50H DELAY1 : DJNZ R1, $ DJNZ R0, DELAY1 RET END ;

47 f a g b LE BI LT D C B A a b c d e f g e c X X 0 X X X X d dp [ ] X 0 1 X X X X Blank B C BI LT LATCH D A GND VCC f g a b c d e X Blank [4511 ] [4511 ]

48 min_h min_l sec_h sec_l

49 , count++ sec_l++ sec_l=0, sec_h ? , +1 count, sec_h, sec_l, Count, min_h, min_l sec_h, sec_l 1, 1, GATE ON TH1=TL1=0 SELECT = 0xbd INT1 GATE ON x14=0.994 INT1, sec_h=0, min_l++ min_l=0, min_h++ 6 6, , +1 count=sec_h=sec_l =min_h=min_l=0 ET1=TR1=EA=1 Count,, 1, min_h=0 10 6,, 1 1

50 #include <win8051.h> // #define SELECT (*(unsigned char*)(0x2fc48)) // 7- #define FNDH (*(unsigned char*)(0x2fc4c)) // 7- #define FNDL (*(unsigned char*)(0x2fc4d)) //, //,, unsigned char count, sec_l, sec_h, min_l, min_h; void main(void){ // 7 FNDH=0; FNDL=0; // 1, 1, GATE ON TMOD = 0x90; // 1. // [MHz]/12 = , 1/921600=1.085[us] // // 1.085[us] x = // 0.071x 14 = 1 // TH=0; TL1=0; // INT1 SELECT = 0; //,, count=sec_l=sec_h=min_l=min_h=0; // 1 ET1 = 1; TR1=1; EA = 1; while(1); // // 1 void TIMER1(void) interrupt 3{ TR1=0; // count++; // 0.71 // count14 1 if(count==14) { count=0; sec_l++; // // 4 10 if(sec_l==10) { sec_l=0; sec_h++; // 6 4 if(sec_h==6) { sec_h=0; min_l++; // 4 10 if(min_l==10) { min_l=0; min_h++; // 6 1 if(min_h==6) min_h=0; } } } } // FNDL = sec_l (sec_h << 4); FNDH = min_l (min_h << 4); } // TH1=0; TL1=0; TR1=1; //

51 count , 1, GATE ON TH1=TL1=0 INT1 GATE ON x14=0.994 count = 0, sec++ 1? Count= Buffer1/A count = sec = min = 0 INT1, Count,, sec=0, min++ 60 sec60, ET1=TR1=EA=1 1, min=0 60 min, TL1=TH1=0, TR1=1 1

53 page0 page1 page2 page7 page0 page1 page2 page7 LCD0 (64dot) LCD1 (64dot) (64dot)

54 Font Data = 0x42, 0x61, 0x51, 0x49, 0x47, 0x00, 0x00, 0x00

55 on/off R/W D/I DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB ON OFF LCD (0~63) RAM (X ) (0~7) X Y Y (0~63) Y RAM 1 1 RAM RAM / Y +1. R/W : READ/WRITE, D/I : DATA/INSTRUCTION

56 LCD0 (LCD0_IW) LCD0 (LCD0_DW) LCD0 (LCD0_IR) LCD0 (LCD0_DR) LCD1 (LCD0_IW) LCD1 (LCD0_DW) LCD1 (LCD0_IR) LCD1 (LCD0_DR) 0xfc40 0xfc41 0xfc42 0xfc43 0xfc41 0xfc42 0xfc43 0xfc44

57 1Byte 1Byte 1Byte 1Byte

58 M 16X8 M1 16X8 LCD LCD LCD, LCD i=16?? LCD, LCD i=16??

60 LCD, LCD, DPTR 16X8 LCD,, DPTR 16X8. LCD. +1 LCD +1? MDA-WIN8051? M 16X8 M1 16X8 LCD

(Asynchronous Mode) ( 1, 5~8, 1~2) & (Parity) 1 ; * S erial Port (BIOS INT 14H) - 1 -

(Asynchronous Mode) ( 1, 5~8, 1~2) & (Parity) 1 ; * S erial Port (BIOS INT 14H) - 1 - (Asynchronous Mode) - - - ( 1, 5~8, 1~2) & (Parity) 1 ; * S erial Port (BIOS INT 14H) - 1 - UART (Univ ers al As y nchronous Receiver / T rans mitter) 8250A 8250A { COM1(3F8H). - Line Control Register