Micro Assignment 2

1. ASSIGNMENT
BABAK DANAYAL -29
12/20/2012
MICROCONTROLLER PROGRAMS

2. OUT 1 Khz frequency using CCP Module
void main() {
CCP1CON=0X02;
TRISC2_BIT=0;
INTCON.CCP1IF=0X00;
INTCON.CCP1IE=1;
CCPR1L=0XE2;
CCPR1H=0X04;
T3CON=0XC0;
TMR3L=TMR3H=0;
INTCON.TMR3IF=0;
INTCON.TMR3IE=1;
T3CON.TMR3ON=1;
}
void interrupt ()
{
if(CCP1IF)
{
INTCON.CCP1IF=0;
}
}

3. CALCULATE THE TIME PERIOD OF FREQUENCY USING EXTERNAL INTERUPT AND CCP MODULE
SOFTWARE
unsigned int edg_no,fq1,fq2,fq;
unsigned char txt[];
sbit LCD_RS at RD3_bit;
sbit LCD_EN at RD2_bit;
sbit LCD_D4 at RD4_bit;
sbit LCD_D5 at RD5_bit;
sbit LCD_D6 at RD6_bit;
sbit LCD_D7 at RD7_bit;
sbit LCD_RS_Direction at TRISD3_bit;
sbit LCD_EN_Direction at TRISD2_bit;
sbit LCD_D4_Direction at TRISD4_bit;
sbit LCD_D5_Direction at TRISD5_bit;
sbit LCD_D6_Direction at TRISD6_bit;
sbit LCD_D7_Direction at TRISD7_bit;
void main() {
Lcd_Init();
INTCON.GIE=1;
INTCON.PEIE=1;
PIE1.CCP1IE=1;
PIR1.CCP1IF=0;
TRISC2_BIT=1;
CCP1CON=0X05;

4. T3CON=0XC0;
TMR3L=TMR3H=0;
INTCON.TMR3IF=0;
INTCON.TMR3IE=1;
fq=fq1=fq2=0;
edg_no=1;
while(1)
{
IntToStr(fq,txt);
Lcd_Out(1,1,txt);
delay_ms(200);
}
}
void interrupt()
{
if(ccp1if==1&&edg_no==1)
{
pir1. ccp1if=0;
fq1=TMR3H;
delay_ms(200);
fq1=fq1<<8;
delay_ms(200);
fq1=fq1+TMR3L;
delay_ms(200);
edg_no=2;
TMR3L=TMR3H=0;
}
else if(ccp1if==1&&edg_no==2)
{
fq2=TMR3H;
delay_ms(200);
fq2=fq1<<8;
delay_ms(200);
fq2=fq2+TMR3L;
delay_ms(200);
pir1.ccp1if=0;
TMR3L=TMR3H=0;
edg_no=1;
fq=fq2-fq1;
}
}

5. CALCULATE DUTY CYCLE OF PULSE
SOFTWARE
unsigned int edg_no,fq;
unsigned char txt[];
sbit LCD_RS at RD3_bit;
sbit LCD_EN at RD2_bit;
sbit LCD_D4 at RD4_bit;
sbit LCD_D5 at RD5_bit;
sbit LCD_D6 at RD6_bit;
sbit LCD_D7 at RD7_bit;
sbit LCD_RS_Direction at TRISD3_bit;
sbit LCD_EN_Direction at TRISD2_bit;
sbit LCD_D4_Direction at TRISD4_bit;
sbit LCD_D5_Direction at TRISD5_bit;
sbit LCD_D6_Direction at TRISD6_bit;
sbit LCD_D7_Direction at TRISD7_bit;
void main() {
Lcd_Init();
INTCON.GIE=1;
INTCON.PEIE=1;
PIE1.CCP1IE=1;
PIR1.CCP1IF=0;
TRISC2_BIT=1;
CCP1CON=0X05;

6. T3CON=0XC0;
TMR3L=TMR3H=0;
PIR2.TMR3IF=0;
PIE2.TMR3IE=1;
fq=0;
edg_no=1;
while(1)
{
IntToStr(fq,txt);
Lcd_Out(1,1,txt);
delay_ms(200);
}
}
void interrupt()
{
if(ccp1if==1&&edg_no==1)
{
pir1. ccp1if=0;
edg_no=2;
TMR3L=TMR3H=0;
CCP1CON=0X04;
}
else if(ccp1if==1&&edg_no==2)
{
fq=TMR3H;
fq=fq<<8;
fq=fq+TMR3L;
pir1.ccp1if=0;
edg_no=1;
CCP1CON=0x05;
}
}

7. INCREASE AND DECREASE PULSE WIDTH WITH BUTTON
SOFTWARE
#define s1 portb.f2
#define s2 portb.f7
unsigned int v;
void main() {
CCP1CON=0X02;
PIE1.CCP1IE=1;
PIR1.CCP1IF=1;
CCPR1L=0X02;
CCPR1H=0X04;
TRISC2_BIT=0;
INTCON.GIE=INTCON.PEIE=1;
T3CON=0XC0;
PIE2.TMR3IF=0;
PIE2.TMR3IE;
TMR3L=TMR3H=0;
T3CON.TMR3ON=1;
while(1)
{
if(s1==1)
{

8. v=CCPR1H;
v=v<<8;
v=v+CCPR1H;
v=v+0X05;
CCPR1L=v;
v=v>>8;
CCPR1H=v;
TMR3L=TMR3H=0;
T3CON.TMR3ON=1;
}
if(s2==1)
{
v=CCPR1H;
v=v<<8;
v=v+CCPR1H;
v=v-0X05;
CCPR1L=v;
v=v>>8;
CCPR1H=v;
TMR3L=TMR3H=0;
T3CON.TMR3ON=1;
}
}
}
void interrupt()
{
if(PIR1.CCP1IF)
{
PIR1.CCP1IF=0;
}
}

9. ON OFF LED WITH 1 SEC DELAY USING TIMER
SOFTWARE
#define wave portd.F4
unsigned short count=0;
void main()
{
INTCON=0XE4;
T0CON=0X08;
TMR0L=0X10;
TMR0H=0X27;
wave=0;
wave=1;
T0CON.TMR0ON=1;
}
void interrupt()
{
if(TMR0IF)
{
count++;
INTCON.TMR0IF=0;
if(count==25)
{

10. wave=~wave;
TMR0L=0X10;
TMR0H=0X27;
count=0;
}
T0CON.TMR0ON=1;
}
}