Embedded-linux

#include <stdio.h>
#incluyde <ctype.h>

#define SIZE 50
char s[SIZE];
int top =-1;

push(char elem)
{
  s[++top] = elem;

Embedded-linux

/***Main Program **********/
#include <stdio.h>
#define MAX 5
int status,top;

int push(int stack[],int item)
{
  if (top == MAX-1)
		{
			printf("Stack overflow \n");

Embedded-linux

/************Main Function*****************/

#include <lpc214x.h>
#include "ext_int.h"

int main(void) {

  keypad_init();  //// initialize the keypad in interrup mode
  while(1)
  {

Embedded-linux

#include <LPC214x.H>                       /* LPC21xx definitions */

#define IOPIN1          (*((volatile unsigned long *) 0xE0028010))
#define IOSET0          (*((volatile unsigned long *) 0xE0028004))
#define IOCLR0          (*((volatile unsigned long *) 0xE002800C))

#define IODIR0          (*((volatile unsigned long *) 0xE0028008))
#define IODIR1          (*((volatile unsigned long *) 0xE0028018))

#define LED_IO_DIR IODIR0

Embedded-linux

This experiment is testing output port function of LPC2148 to drive 2 LED at P0.21 and P0.22

//——————————————————————————————————————————————————————————————————//
// Program : Example for display LED
// Description : LED Blink toggle at P0.21 and P0.22
// Frequency : Crystal 12 MHz at PLL 5x(CCLK = 60 MHz),PCLK = 30 MHz
// Filename : led.c
// C compiler : Keil CARM Compiler
//——————————————————————————————————————————————————————————————————//

Embedded-linux

/*Programming on chip flash driver -- copy data from RAM to Flash/Erasing Sector address, Erasing complete chip and programming the chip with IAP [In Application Program] commands*/

/*  Reference Manual for Flash memory and IAP commands :http://www.nxp.com/documents/user_manual/UM10139.pdf  */

#include ''../FlashOs.H"

// Memory Mapping Control

#define MEMMAP      (*((volatile unsigned char *)  0x E01FC040))

Embedded-linux

Reference user manual :

http://www.keil.com/dd/docs/datashts/philips/user_manual_lpc2119_2129_2194_2292_2294.pdf

 

/*Serial interfacing for LPC2129 [NXP] UART1*/

#include <LPC210x.H> /* LPC21xx definitions */

Embedded-linux

Reference user manual :

http://www.keil.com/dd/docs/datashts/philips/user_manual_lpc2119_2129_2194_2292_2294.pdf

/* WDT  [Watch Dog Timer] driver for LPC2129 */

#include <LPC210x.H> /* LPC210x definitions */

extern void init_serial (void); /* Initialize Serial Interface */
extern int sendchar (int ch); /* Write character to Serial Port */

Embedded-linux

LPC2148 port acts input for reading data
from P0.28 and P0.29 that connected with push-button switches and resistor pull-up

//————————————————————————————————————————————————————————————————————————//
// Program : Example for test switch
// Description : Test switch at P0.28 and P0.29 for toggle LED at P0.21 and P0.22
// Frequency : Crystal 12 MHz at PLL 5x(CCLK = 60 MHz),PCLK = 30 MHz
// Filename : switch.c
// C compiler : Keil CARM Compiler
//————————————————————————————————————————————————————————————————————————//

Embedded-linux

//————————————————————————————————————————————————————————————————————————//
// Program : Example for EINT2(External interrupt2)
// Description : Test interrupt from switch press display by LED at P0.21
// : toggle and sound beep
// Frequency : Crystal 12 MHz at PLL 5x(CCLK = 60 MHz),PCLK = 30 MHz
// Filename : ext_int2.c
// C compiler : Keil CARM Compiler
//————————————————————————————————————————————————————————————————————————//
#include “lpc214x.h” // Header file for Phillips LPC2148 controller
#include “sound.h” // Header file for Phillips LPC2148 controller