Counter Design in Contiki NG Operating System

Counter Design in Contiki NG OS

$] make TARGET=native

Step 1 - Files needed 

myowncounter.h, myowncounter.c and ngcounter.c Makefile.

Inside the folder contiki-ng/examples/myowncounter

Step 2: 

//myowncounter.h

#ifndef MYOWNCOUNTER_H

#define MYOWNCOUNTER_H

int next_round(int temp);

#endif

Step 3: 

//myowncounter.c

#include "myowncounter.h"

int next_round(int temp)

{

if(temp>59)

temp=1;

else 

temp++;

return temp;

}

Step 4: 

//ngcounter.c

#include "contiki.h"

#include "sys/etimer.h"

#include "mycounter.h"

#include <stdio.h>

PROCESS(mycounter_process, "My Counter Process");

AUTOSTART_PROCESSES(&mycounter_process);

static struct etimer et;

static int count=0;

PROCESS_THREAD(mycounter_process,ev,data)

{

PROCESS_BEGIN();

while(1)

{

etimer_set(&et, CLOCK_SECOND*2);

PROCESS_WAIT_EVENT_UNTIL(etimer_Expired(&et));

count=next_round(count);

printf("Count Value : %d\n",count);

}

PROCESS_END();

}

Step 5: Makefile

#Makefile Content

CONTIKI_PROJECT = ngcounter

all: $(CONTIKI_PROJECT)

PROJECT_SOURCEFILES += myowncounter.c

CONTIKI = ../..

include $(CONTIKI)/Makefile.include

How to Execute

To run this, Open the Terminal and Go to 

$] cd contiki-ng/examples/myowncounter

$] make TARGET=native

It will create a file called ngcounter.native file 

$] ./ngcounter.native

You will get the  Output Looks this this:

Contiki NG

The above code is working on a Mote As Well in Z1 Zolertia Motes as shown below.

Zolertia Z1

Complete Instructions are there in the Video.