Ccs c for pic16F877a mục lục I. Tổng quan về ccs vì sao ta sử dung ccs ?

CCS C for PIC16F877A 24/06/2008

2. 
   Input_output………………………………………………………….......11
   

Ngoài ra, để xem code ASM như thế nào,sau khi dịch bạn chọn mục C/ASM List như hình dưới đây:

Link download trình biên dịch CCS C ở đây: http://www.tailieuvietnam.net/downlo...CCSC_3.249.rar

Sử dụng CCS cho việc lập trình PIC là rất hay và tiện lợi.Truoc day ban noisepic có đề cập cách lập trình cho ccs khá hay. Ta sẽ khai báo thêm một file định nghĩa các thanh ghi của pic kiểu như :

#define F 1

#byte INDF =0x00

#byte TMR0 =0x01

#byte PCL =0x02

#byte STATUS =0x03

#byte FSR =0x04

#byte PORTA =0x05

#byte PORTB =0x06

#byte PORTC =0x07

#byte PORTD =0x08

#byte PORTE =0x09
#byte EEDATA =0x10C

#byte EEADR =0x10D

#byte EEDATH =0x10E

#byte EEADRH =0x10F

#byte ADCON0 =0x1F

#byte ADCON1 =0x9F

#byte ADRESH =0x9F

#byte ADSESL =0x9F

#byte INTCON =0x0b

#byte PIR1 =0x0c

#byte PIR2 =0x0d

#byte PIE1 =0x8c

#byte PIE2 =0x8d

#byte TRISA =0x85

#byte TRISB =0x86

#byte TRISC =0x87

#byte TRISD =0x88

#byte TRISE =0x89

#byte EECON2 =0x18D

#bit RA5 =0x05.5

#bit RA4 =0x05.4

#bit RA3 =0x05.3

#bit RA2 =0x05.2

#bit RA1 =0x05.1

#bit RA0 =0x05.0
#bit RB7 =0x06.7

#bit RB6 =0x06.6

#bit RB5 =0x06.5

#bit RB4 =0x06.4

#bit RB3 =0x06.3

#bit RB2 =0x06.2

#bit RB1 =0x06.1

#bit RB0 =0x06.0

#bit RC6 =0x07.6

#bit RC5 =0x07.5

#bit RC4 =0x07.4

#bit RC3 =0x07.3

#bit RC2 =0x07.2

#bit RC1 =0x07.1

#bit RC0 =0x07.0

#bit RD6 =0x08.6

#bit RD5 =0x08.5

#bit RD4 =0x08.4

#bit RD3 =0x08.3

#bit RD2 =0x08.2

#bit RD1 =0x08.1

#bit RD0 =0x08.0

#bit RE1 =0x09.1

#bit RE0 =0x09.0
#bit TRISA5 =0x85.5

#bit TRISA4 =0x85.4

#bit TRISA3 =0x85.3

#bit TRISA2 =0x85.2

#bit TRISA1 =0x85.1

#bit TRISA0 =0x85.0

#bit TRISB6 =0x86.6

#bit TRISB5 =0x86.5

#bit TRISB4 =0x86.4

#bit TRISB3 =0x86.3

#bit TRISB2 =0x86.2

#bit TRISB1 =0x86.1

#bit TRISB0 =0x86.0

#bit TRISC6 =0x87.6

#bit TRISC5 =0x87.5

#bit TRISC4 =0x87.4

#bit TRISC3 =0x87.3

#bit TRISC2 =0x87.2

#bit TRISC1 =0x87.1

#bit TRISC0 =0x87.0

#bit TRISD6 =0x88.6

#bit TRISD5 =0x88.5

#bit TRISD4 =0x88.4

#bit TRISD3 =0x88.3

#bit TRISD2 =0x88.2

#bit TRISD1 =0x88.1

#bit TRISD0 =0x88.0

#bit TRISE1 =0x89.1

#bit TRISE0 =0x89.0
// INTCON Bits for C

#bit gie = 0x0b.7

#bit peie = 0x0b.6

#bit tmr0ie = 0x0b.5

#bit int0ie = 0x0b.4

#bit rbie = 0x0b.3

#bit tmr0if = 0x0b.2

#bit int0if = 0x0b.1

#bit rbif = 0x0b.0
// PIR1 for C

#bit pspif = 0x0c.7

#bit adif = 0x0c.6

#bit rcif = 0x0c.5

#bit txif = 0x0c.4

#bit sspif = 0x0c.3

#bit ccp1if = 0x0c.2

#bit tmr2if = 0x0c.1

#bit tmr1if = 0x0c.0
//PIR2 for C

#bit cmif = 0x0d.6

#bit eeif = 0x0d.4

#bit bclif = 0x0d.3

#bit ccp2if = 0x0d.0
// PIE1 for C

#bit adie = 0x8c.6

#bit rcie = 0x8c.5

#bit txie = 0x8c.4

#bit sspie = 0x8c.3

#bit ccp1ie = 0x8c.2

#bit tmr2ie = 0x8c.1

#bit tmr1ie = 0x8c.0

#bit osfie = 0x8d.7

#bit cmie = 0x8d.6

#bit eeie = 0x8d.4

#bit not_rbpu = 0x81.7

#bit intedg = 0x81.6

#bit t0cs = 0x81.5

#bit t0se = 0x81.4

#bit psa = 0x81.3

#bit ps2 = 0x81.2

#bit ps1 = 0x81.1

#bit ps0 = 0x81.0
// EECON1 Bits

#bit eepgd = 0x18c.7

#bit free = 0x18C.4

#bit wrerr = 0x18C.3

#bit wren = 0x18C.2

#bit wr = 0x18C.1

Code:

2. 
   Input_output
   

// Ten chuong trinh : Thuc hien vao ra

// Nguoi thuc hien : linhnc308

// Ngay thuc hien : 1/09/2006

// Phien ban : 1.0

// Mo ta phan cung : Dung PIC16F877A - thach anh 20MHz

//================================================= =======

#include <16f877a.h>

#include

#device *=16 ADC=10

#FUSES NOWDT, HS, NOPUT, NOPROTECT, NODEBUG, NOBROWNOUT, NOLVP, NOCPD, NOWRT

#use delay(clock=20000000)

#CASE

// Dinh nghia ten cac cong ra

#define Relay1 RD0

#define Relay2 RD1

#define Relay3 RD2

#define Relay4 RD3

#define Relay5 RD4

#define Relay6 RD5

#define Relay7 RD6

#define Relay8 RD7

#define Relay9 RC4

#define Relay10 RC5

#define Relay11 RC6

#define Relay12 RC7
#define In1 RA0

#define In2 RA1

#define In3 RA2

#define In4 RA3

#define AllRelay2 PORTC // PIN C4 : C7

#define Step PORTB

#Define AllInput PORTA

#define ON 1

#define OutEnable2 TRISC // Relay Output

#define InEnable TRISA // Input

#define StepEnable TRISB // Step Motor

#define PWM_Enable TRISC2 // PWM, PIN_C2

void main()

{

int16 DutyCycle;

// Khoi tao che do vao ra

OutEnable1 = 0x00;

OutEnable2 = 0x0F;

InEnable = 0x0F;

StepEnable = 0;

PWM_Enable = 1; // Khong cho phep xuat PWM

//=====================================

// Khoi tao cho bo PWM

setup_ccp1(CCP_PWM); // CCP1_PINC2 as a PWM

// CycleTime = (1/clock)*4*t2div*(period+1)

// Clock=20000000 and period=127 (below)

// Tinh toan tan so PWM phat ra:

// (1/10000000)*4*1*128 = 51.2 us or 19.5 khz

// (1/20000000)*4*2*128 = 51.2 us or 19.5 khz
// (1/10000000)*4*4*128 = 204.8 us or 4.9 khz

// (1/10000000)*4*16*128= 819.2 us or 1.2 khz

//setup_timer_2(T2_DIV_BY_1, 31, 1); // 78.12KHz

//setup_timer_2(T2_DIV_BY_1, 255, 1); // 19.53KHz duty = 0..1023

setup_timer_2(T2_DIV_BY_4, 255, 1); // 4.5KHz

//setup_timer_2(T2_DIV_BY_16, 127, 1); // 1.2KHz

//set_pwm1_duty(value); // This sets the time the pulse is

//===================================

// Test Mode

OutEnable2 = 0x0F;

delay_ms(10);

Step = 0x00; // Motor Stop

AllRelay1 = 0x00;

AllRelay2 = 0x00; // Mo toan bo cac Role

DutyCycle = 1023;

set_pwm1_duty(DutyCycle); // Chay bo PWM

PWM_Enable = 1;
while (TRUE) {

AllRelay1 = 0x00;

Relay12 = ON; // Mo toan bo cac Role

delay_ms(1000);

AllRelay1 = 0xFF;

Relay12 = OFF; // Dong toan bo cac Role

delay_ms(750);
if (DutyCycle == 1024) DutyCycle = 1024;

if (In1 == 0)

{

DutyCycle += 64;

}

if (DutyCycle == 0) DutyCycle = 0;

{

DutyCycle -= 64;

}

delay_ms(250);

}
/*

#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=9)

#use i2c(Master,Fast,sda=PIN_C4,scl=PIN_C3)

xxx_isr()

{

// Code here

{

// Code here

*/

#include <16f877a.h>

#include

#device *=16 ADC=8

#FUSES NOWDT, HS, NOPUT, NOPROTECT, NODEBUG, NOBROWNOUT, NOLVP, NOCPD, NOWRT

#use delay(clock=20000000)

//#use i2c(Master,Fast,sda=PIN_C4,scl=PIN_C3)

//xxx_isr()

//{

// Code here

main()

//thiet lap che do cho portb

trisb=0x00;

portb=0xff;

while (true)

{

portb=0;

portb=0x80;

delay_ms(500);

}

}

#include <16F877A.h>

#include

#FUSES NOWDT, HS, NOPUT, NOPROTECT, NODEBUG, NOBROWNOUT, NOLVP, NOCPD, NOWRT

#use delay(clock=20000000)
int8 mode,i;

byte temp;

EXT_ISR() {

if (mode==9) mode = 0;

}

// End of INT

void program2();

void program3();

void program4();

void program5();

void program6();

void program7();

void program8();

trisb = 0xFF;

portd=0xff;

enable_interrupts(int_EXT);

ext_int_edge(L_TO_H);

enable_interrupts(GLOBAL);

mode = 0;

while (1) {

switch(mode) {

case 1: program1(); break;

case 2: program2(); break;

case 3: program3(); break;

case 4: program4(); break;

case 5: program5(); break;

case 6: program6(); break;

case 7: program7(); break;

case 8: program8(); break;

}

}

PortD = 0x00;

delay_ms(250);

Portd = 0xFF;

delay_ms(250);

}

void program2() {

for (i=0;i<=8;i++) {

portd = temp;

delay_ms(250);

temp >>= 1;

}

}

temp = 0xFF;

for (i=0;i<=8;i++) {

portd = temp;

delay_ms(250);

temp <<= 1;

}

}

void program4() {

delay_ms(500);

portd = 0x55;

delay_ms(500);

}

void program5() {

delay_ms(150);

Portd = 0xBD;

delay_ms(250);

Portd = 0xDB;

delay_ms(150);

Portd = 0xE7;

delay_ms(150);

Portd = 0xDB;

delay_ms(150);

Portd = 0xBD;

delay_ms(150);

Portd = 0x7E;

delay_ms(150);

}

void program6() {

for (i=0;i<=8;i++) {

portd = temp;

delay_ms(250);

temp = temp >> 1;

}

}

delay_ms(150);

Portd = 0xFD;

delay_ms(150);

Portd = 0xFB;

delay_ms(150);

Portd = 0xF7;

delay_ms(150);

Portd = 0xEF;

delay_ms(150);

PortD = 0xDF;

delay_ms(150);

Portd = 0xBF;

delay_ms(150);

Portd = 0x7F;

delay_ms(150);

}

void program8() {

delay_ms(150);

Portd = 0xBF;

delay_ms(150);

PortD = 0xDF;

delay_ms(150);

Portd = 0xEF;

delay_ms(150);

Portd = 0xF7;

delay_ms(150);

Portd = 0xFB;

delay_ms(150);

Portd = 0xFD;

delay_ms(150);

Portd = 0xFE;

delay_ms(150);

}