Notes

Experiment 1

part 1:Number of Switch Pressings
count number then display
in binary on bargraph
-------
ISIS:
RA0: 10K with VCC then switch and gnd
RC0 to RC7 : we put 8 wires to
LED BARgraph(pin 9&10 out) then
connect them to RESpack(pin 1 to gnd
and rest in series with bargraph )
------
code :
#include "ee470.h"
void main(void)
unsigned char x=0;
OSCCON=0x70;
ADCON1=0xF;
TRISA0=1; // RA0 as i/p
TRISC=0; // PORTC as o/p
while(1)
{
while(RA0==0); // wait for switch ON
x++;
PORTC=x; // display the count on bargraph on PORTC
while(RA0==1); // wait for switch OFF
}
}
##################
part 2:Generate Square Wave
using Time delay Routines
write code generate 1KHZ
or RA0
------
ISIS:
RA0:Oscilloscpe(connect to pin A)
----
code:
#inlude "ee470.h"
void main(void)
{
OSCCON=0x70;
ADCON1=0xF;
TRISA0=0;
while(TRUE){
RA0=1;
Delay100TCYx(10);
RA0=0;
Delay100TCYx(10);
}
}
###############
part3: Continuously Increment
PORTA and Observe the Generated
Square Waves on RA7...RA0

----
ISIS:pic with oscilloscope
RA0:with pin A on OSC
RA1:with pin B on OSC
RA2:with pin c on OSC
RA3:with pin D on OSC
------
code :
#include "ee470.h"
void main(void) {
OSCCON=0x70;
ADCON1=0xF;
TRISA=0;
while(1) {PORTA=PORTA++; Delay100TCYx(1);}
}