DTMF project in lpc2148 Microcontroller

[Koteswararao u]

i am developing project on DTMF based in  ARM7(lpc2148) Microcontroller.

i am getting problem in code.

plz can any one help me.

my code is:

////////////////////////////////////////////////////////////////

#include <lpc214x.h>

#include "lcd.h"

 

main()

{

IODIR1=0x003F0000;

lcdini();

cmd(0x01);

lcdstr("DTMF PROJECT:");

cmd(0x01);

while(1)

{  cmd(0x01);

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==0) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==0))

{

lcdstr("NO:0");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==0) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==1))

{

lcdstr("NO:1");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==0) && ((IOPIN0&(1<<6))==1) && ((IOPIN0&(1<<7))==0))

{

lcdstr("NO:2");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==0) && ((IOPIN0&(1<<6))==1) && ((IOPIN0&(1<<7))==1))

{

lcdstr("NO:3");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==1) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==0))

{

lcdstr("NO:4");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==1) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==1))

{

lcdstr("NO:5");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==1) && ((IOPIN0&(1<<6))==1) && ((IOPIN0&(1<<7))==0))

{

lcdstr("NO:6");

delay(300);

}

if(((IOPIN0&(1<<4))==0) && ((IOPIN0&(1<<5))==1) && ((IOPIN0&(1<<6))==1) && ((IOPIN0&(1<<7))==1))

{

lcdstr("NO:7");

delay(300);

}

if(((IOPIN0&(1<<4))==1) && ((IOPIN0&(1<<5))==0) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==0))

{

lcdstr("NO:8");

delay(300);

}

if(((IOPIN0&(1<<4))==1) && ((IOPIN0&(1<<5))==1) && ((IOPIN0&(1<<6))==0) && ((IOPIN0&(1<<7))==1))

{

lcdstr("NO:9");

delay(300);

}

 

  }

}

 

 

//////////////////////////////////////////////////////////////////////////////////////////

[Ashutosh Bhatt]

give more details of your project. circuit diagram, description etc

[Koteswararao u]

sir

just i need to display on lcd the what i am  pressed on DTMF tone generator .

for  example i pressed 1 on on DTMF tone generator in want on lcd 1.

and i am using for channel DTMF module .

it gives output as

1 for 0001

2 for 0010

……………………………

please help me.

[Ashutosh Bhatt]

what kind of error u r getting?

you are including lcd.h file. where is that file?

[Koteswararao u]

Ashutosh Bhatt Sir  ,

i alredy add the lcd.h header file .

there is problem with lcd .

lcd working properally but problem wuth logic .

on lcd nothing show .

can send example code DTMF module code plz sir.

[Author]

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