About
Buzzer :
#include <lpc214x.h> //Includes LPC2148 register definitions
#define BUZZER_ON() IO0CLR=(1<<11) //Macro Functions to turn ON Buzzer
#define BUZZER_OFF() IO0SET=(1<<11) //Macro Functions to turn OFF Buzzer
void Delay(unsigned char j) //This Function is used to cause delay between LED ON and OFF events
{
unsigned int i;
for(;j>0;j--)
{
for(i=0; i<60000; i++);
}
}
int main(void)
{
PINSEL0 = 0x00000000; // Enable GPIO on all pins
IO0DIR = (1<<11) ; // Set P0.11 as Output to control buzzer
while(1)
{
BUZZER_ON();
Delay(10); //The count value is updated in the EINT3 ISR
BUZZER_OFF();
Delay(10);
}
}
LED :
#include <lpc214x.h> //Includes LPC2148 register definitions
#define LED1_ON() IO1SET=(1<<16) //Macro Functions to turn ON LED
#define LED2_ON() IO1SET=(1<<17)
#define LED3_ON() IO1SET=(1<<18)
#define LED4_ON() IO1SET=(1<<19)
#define LED1_OFF() IO1CLR=(1<<16) //Macro Functions to turn OFF LED
#define LED2_OFF() IO1CLR=(1<<17)
#define LED3_OFF() IO1CLR=(1<<18)
#define LED4_OFF() IO1CLR=(1<<19)
void Delay(unsigned char j) //This Function is used to cause delay between LED ON and OFF events
{
unsigned int i;
for(;j>0;j--)
{
for(i=0; i<60000; i++);
}
}
int main(void)
{
PINSEL0 = 0x00000000; // Enable GPIO on all pins
PINSEL1 = 0x00000000;
PINSEL2 = 0x00000000;
IO1DIR = (1<<19) | (1<<18) | (1<<17) | (1<<16); // Set P1.16, P1.17, P1.18, P1.19 as Output
while(1)
{
LED1_ON();
Delay(25);
LED1_OFF();
LED2_ON();
Delay(25);
LED2_OFF();
LED3_ON();
Delay(25);
LED3_OFF();
LED4_ON();
Delay(25);
LED4_OFF();
}
return(0);
}
There are 3 Pin Function Select Registers
in LPC 2148
1 PINSEL 0 PINSEL 0 is used to
configure PORT 0 pins P 0 0 to P 0 15
2 PINSEL 1 PINSEL 1 is used to
configure PORT 0 pins P 0 16 to P 0 31
3 PINSEL 2 PINSEL 2 is used to
configure PORT 1 pins P 1 16 to P 1 31
Traffic :
#include <lpc214x.h> //Includes LPC2148 register definitions
#include <math.h>
#define LED1_ON() IO1SET=(1<<16) //Macro Functions to turn ON LED
#define LED2_ON() IO1SET=(1<<17)
#define LED3_ON() IO1SET=(1<<18)
#define LED4_ON() IO1SET=(1<<19)
#define LED1_OFF() IO1CLR=(1<<16) //Macro Functions to turn OFF LED
#define LED2_OFF() IO1CLR=(1<<17)
#define LED3_OFF() IO1CLR=(1<<18)
#define LED4_OFF() IO1CLR=(1<<19)
#define BUZZER_ON() IO0CLR=(1<<11) //Macro Functions to turn ON Buzzer
#define BUZZER_OFF() IO0SET=(1<<11) //Macro Functions to turn OFF Buzzer
void Delay(unsigned char j) //This Function is used to cause delay between LED ON and OFF events
{
unsigned int i;
for(;j>0;j--)
{
for(i=0; i<60000; i++);
}
}
void red(){
LED1_ON() ;
BUZZER_ON();
Delay(20);
BUZZER_OFF();
LED1_OFF();
}
void yellow(){
LED2_ON() ;
BUZZER_ON();
Delay(20);
BUZZER_OFF();
Delay(20);
BUZZER_ON();
Delay(20);
BUZZER_OFF();
LED2_OFF();
}
void green(){
LED3_ON() ;
BUZZER_ON();
Delay(20);
BUZZER_OFF();
Delay(10);
BUZZER_ON();
Delay(20);
BUZZER_OFF();
Delay(10);
BUZZER_ON();
Delay(20);
BUZZER_OFF();
LED3_OFF();
}
int main(void)
{
PINSEL0 = 0x00000000; // Enable GPIO on all pins
PINSEL1 = 0x00000000;
PINSEL2 = 0x00000000;
IO1DIR = (1<<19) | (1<<18) | (1<<17) | (1<<16); // Set P1.16, P1.17, P1.18, P1.19 as Output
IO0DIR = (1<<11);
while(1){
red();
Delay(50) ;
yellow();
Delay(50);
green();
}
return(0);
}
Password authentication :
/*
Program to demonstrates Password authentication
If password matches LED1 on (p0.16) and buzzer goes off
password fails ALL LED on and buzzer goes on
*/
#include <lpc214x.h> //Includes LPC2148 register definitions
#define BUZZER_ON() IO0CLR=(1<<11) //Macro Functions to turn ON Buzzer
#define BUZZER_OFF() IO0SET=(1<<11) //Macro Functions to turn OFF Buzzer
#define LED1_ON() IO1SET=(1<<16) //Macro Functions to turn ON LED
#define LED2_ON() IO1SET=(1<<17)
#define LED3_ON() IO1SET=(1<<18)
#define LED4_ON() IO1SET=(1<<19)
void Delay(unsigned char j) //This Function is used to cause delay between LED ON and OFF events
{
unsigned int i;
for(;j>0;j--)
{
for(i=0; i<60000; i++);
}
}
void AllED_ON()
{
LED1_ON();
LED2_ON();
LED3_ON();
LED4_ON();
}
int pd=1234;
int main(void)
{
PINSEL0 = 0x00000000; // Enable GPIO on all pins
PINSEL1 = 0x00000000;
PINSEL2 = 0x00000000;
IO1DIR = (1<<19) | (1<<18) | (1<<17) | (1<<16); // Set P1.16, P1.17, P1.18, P1.19 as Output
IO0DIR = (1<<11) ; // Set P0.11 as Output to control buzzer
//passwrod condition check
if (pd==123)
{
LED1_ON();
BUZZER_OFF();
}
else
{
AllED_ON();
BUZZER_ON();
}
}
Binary number display :
/*
Binary number display using build in LED
from 0000 to 1111
*/
#include <lpc214x.h> //Includes LPC2148 register definitions
#define LED1_ON() IO1SET=(1<<16) //Macro Functions to turn ON LED
#define LED2_ON() IO1SET=(1<<17)
#define LED3_ON() IO1SET=(1<<18)
#define LED4_ON() IO1SET=
(1<<19)
#define LED1_OFF() IO1CLR=(1<<16) //Macro Functions to turn OFF LED
#define LED2_OFF() IO1CLR=(1<<17)
#define LED3_OFF() IO1CLR=(1<<18)
#define LED4_OFF() IO1CLR=(1<<19)
#define BUZZER_ON() IO0CLR=(1<<11) //Macro Functions to turn ON Buzzer
#define BUZZER_OFF() IO0SET=(1<<11)
void Delay(unsigned char j) //This Function is used to cause delay between LED ON and OFF events
{
unsigned int i;
for(;j>0;j--)
{
for(i=0; i<60000; i++);
}
}
void binary_led()
{
int i, temp, rem, count = 0;
for(i=0;i<16;i++)
{
temp = i;
count = 0;
while (temp > 0) {
rem = temp%2;
temp = temp/2;
count = count + 1;
if (rem == 1) {
if (count == 1) LED4_ON();
if (count == 2) LED3_ON();
if(count == 3) LED2_ON();
if (count == 4) LED1_ON();
}
else
{
if (count == 1) LED4_OFF();
if (count == 2) LED3_OFF();
if(count == 3) LED2_OFF();
if (count == 4) LED1_OFF();
}
}
Delay(250);
BUZZER_ON();
Delay(10); //The count value is updated in the EINT3 ISR
BUZZER_OFF();
}
}
int main(void)
{
PINSEL0 = 0x00000000; // Enable GPIO on all pins
PINSEL1 = 0x00000000;
PINSEL2 = 0x00000000;
IO1DIR = (1<<19) | (1<<18) | (1<<17) | (1<<16); // Set P1.16, P1.17, P1.18, P1.19 as Output
IO0DIR = (1<<11);
binary_led();
return(0);
}
