Bai Tap Pic- Dientuvienthong.name

8/8/2019 Bai Tap Pic- Dientuvienthong.name

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I HC NNG Cng ha x hi ch ngha Vit Nam

TRNG CAO NG CNG NGH c lp- t do- hnh phc

KHOA IN T_VIN THNG

B MN K THUT MY TNH

BI TP LN

K THUT VI X L

GVHD : Phm Xun Trung

Ngi thc hin : Phan Duy Cn

L Quang Nam

Trn Th Bch

Lp HP : 10KTVXL0


2/18

Cu 1) Cho LED sng kt hp ln lt t RB0 -> RB7, sau nhp nhy (Tns l 1Hz)

Begin

Kim tra

TT LED

Bt Led

+1

BUFFER

Kt Thc


3/18

Code chng trnh:(Chng trnh c m phng trn simulator ide v trch

xut file .hex trn Mplab ide)processor p16f877aINCLUDE P16F877A.INC

__CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON &_XT_OSC & _WRT_OFF & _LVP_OFF & _CPD_OFF

; khai bo cc Configuration bitsORG 0x000 ; a ch bt u chng trnhGOTO startstart ; Chng trnh chnh bt u ti y

BCF STATUS,RP1BCF STATUS,RP0 ; Chn BANK0CLRF PORTB ; Xo PORTBBSF STATUS,RP0 ; Chn BANK1MOVLW 0x00MOVWF TRISB ; PORTB


4/18

Hnh nh chuyn sang file hex thnh cng bi 1

Chng trnh chnh trn Mplab


5/18

M phng trn Pic simulator ide


6/18

Bi 2: Kt hp nt bm cho LED sang nh cu 1.


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Begin

Bt Led

NT NHN

TT LED

END

Code chng trnh:(Chng trnh c m phng trn simulator ide v trchxut file .hex trn Mplab ide)


8/18

processor p16f877a

INCLUDE P16F877A.INC

__CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON &

_XT_OSC & _WRT_OFF & _LVP_OFF & _CPD_OFF

;---------------------------------------------------------------------------------------------------

;Khai bo hng

;---------------------------------------------------------------------------------------------------

SW1 EQU 0

SW2 EQU 1SW3 EQU 2

SW4 EQU 3

LED1 EQU 4

LED2 EQU 5

LED3 EQU 6

LED4 EQU 7

ORG 0x000

GOTO start

start

BCF STATUS,RP1

BCF STATUS,RP0

CLRF PORTB

BSF STATUS,RP0

MOVLW b'00001111' ; Thit lp chc nng tng pin trong PORTB


9/18

MOVWF TRISB

BCF STATUS,RP0

loop

BTFSS PORTB,SW1 ; Kim tra cng tc 1

CALL switch1 ; Thc hin lnh ny nu cng tc c nBTFSS PORTB,SW2 ; Nu cng tc 1 khng c n, kim tracng tc 2

CALL switch2 ; Tip tc vi cc cng tc cn li

BTFSS PORTB,SW3

CALL switch3

BTFSS PORTB,SW4

CALL switch4

GOTO loop

switch1

CLRF PORTB

BSF PORTB,LED1

RETURN

switch2

CLRF PORTB

BSF PORTB,LED2

RETURN

switch3

CLRF PORTB


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BSF PORTB,LED3

RETURN

switch4

CLRF PORTB

BSF PORTB,LED4

RETURN

END

Trn Mplab ide


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Trn Pic Simulator


12/18

Cu 3 ) S dng chc nng ngt ngoi cho LED sng nh cu 1


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BT U

KIM

TRA NGOI

VI

THC HIN

END

Code chng trnh ngt ngoi vit trn Pic Simulator


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R0L EQU 0xCR0H EQU 0xDR1L EQU 0xER1H EQU 0xFR2L EQU 0x10R2H EQU 0x11R3L EQU 0x12R3H EQU 0x13R4L EQU 0x14R4H EQU 0x15R5L EQU 0x16R5H EQU 0x17TEMP_W EQU 0x4F

TEMP_ST EQU 0x4EORG 0x0000BCF PCLATH,3BCF PCLATH,4GOTO L0001ORG 0x0004MOVWF TEMP_WSWAPFSTATUS,WBCF STATUS,RP0MOVWF TEMP_STCALL L0002SWAPFTEMP_ST,WMOVWF STATUSSWAPFTEMP_W,FSWAPFTEMP_W,WRETFIE

L0001:; Chng trnh chnh

; Thit lp PORT

,,,,,,,,,,,,,,,,,; Thit lp ngtBCF STATUS,RP0BSF 0x0B,4 ; Cho php ngt chn RB0BSF 0x0B,7 ; Cho php ngt

L0003: GOTO L0003L0002:

;Chng trnh ngt


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BCF 0x0B,1; Cho php lpRETURN

L0004: GOTO L0004END

M phng


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Cu 4: Tng t cu 3 nhng s dng ngt Timer0.

BT U

0000-> PORB B

DELAY

0001-> PORB B

0000-> PORB B

END


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Code chng trnh vit trn Pic Simulator :

R0L EQU 0xCR0H EQU 0xDR1L EQU 0xER1H EQU 0xFR2L EQU 0x10R2H EQU 0x11

R3L EQU 0x12R3H EQU 0x13R4L EQU 0x14R4H EQU 0x15R5L EQU 0x16R5H EQU 0x17W_TEMP EQU 0x4FSTATUS_TEMP EQU 0x4EORG 0x0000BCF PCLATH,3BCF PCLATH,4

GOTO L0001ORG 0x0004MOVWF W_TEMPSWAPF STATUS,WCLRF STATUSMOVWF STATUS_TEMPCALL L0002SWAPF STATUS_TEMP,WMOVWF STATUSSWAPF W_TEMP,FSWAPF W_TEMP,WRETFIE

L0001:; Chng trinh chnh

; Thit lp PORT;,,,,,,,,,,,,,,,,,,,,,Thit lp time0BCF STATUS,RP0BSF 0x0B,5; Cho php ng?t time0


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BSF 0x0B,7; Cho chophp ngt?BSF STATUS,RP0BCF 0x01,5; Chn xung ngtBCF STATUS,RP0

L0003: GOTO L0003

L0002:; Chng trnh ngtBCF 0x0B,2; Cho php bt u ngt mi

RETURNL0004: GOTO L0004

END

M phng Trn Pic sumilator

Bai Tap Pic- Dientuvienthong.name

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