Interfacing PIC 16f877a with SIM900D

[Humad Ahmed]

I am currently doing a project on PIC 16f877a with SIM900D GSM MODULE. The purpose of this GSM MODULE is to send an SMS to a number and then wait for response. Based on the response, it would call functions from the PIC 16f877a. I need immediate help in writing the code in C to generate a menu and send it to a mobile number.I am currently using MPLAB IDE 8.80… 

[Amrith]

Hi Ahmed,

 

Good Project, if you could do coding on your own you can learn much more, suggest you to start from your side i will support you to complete your project.

 

Learn below topics to start coding:

 

Basic AT commands for SMS.

Serial Communication(UART) through microcontroller.

 

All the Best !!!

[Amrith]

Hi Ahmed,

 

Good Project, if you could do coding on your own you can learn much more, suggest you to start from your side i will support you to complete your project.

 

Learn below topics to start coding:

 

Basic AT commands for SMS.

Serial Communication(UART) through microcontroller.

 

All the Best !!!

[Humad Ahmed]

 

Well, This is the code i have come up with, but the problem is that the AT Commands keep on looping when i run simulation in Proteus…

 

#include<pic.h>

 

char gsmat1[3]=”ATr”;

char gsmat2[10]=”AT+CMGF=1r”;

char gsmat3[22]=”AT+CMGS=”03219396419″r”;

char gsmat4=26;

 

void SerialInit()

{

TRISC6=0;

TRISC7=1; 

TX9=0;

SPBRG=64;

BRGH=1;

SYNC=0;

SPEN=1;      

TXEN=1;

RX9=0;

CREN=1;

}

 

void delay(unsigned long y)

{

int i=0;

for(i;i<y;i++);

}

 

void SerialTX(unsigned char c)

{

while(TXIF==0);

TXREG=c;

 

}

 

void send(unsigned char *s)

{

int i=0;

while(s!=’’)

{

while(TXIF==0);

TXREG=s;

i=i++;

delay(15000);

}

delay(15000);

}

 

void main (void)

{

SerialInit();

delay(15000);

while(!TXIF);

send(gsmat1);

delay(15000);

TXREG==0;

TXEN==0;

}

[Humad Ahmed]

 

Well, This is the code i have come up with, but the problem is that the AT Commands keep on looping when i run simulation in Proteus…

 

#include<pic.h>

 

char gsmat1[3]=”ATr”;

char gsmat2[10]=”AT+CMGF=1r”;

char gsmat3[22]=”AT+CMGS=”03219396419″r”;

char gsmat4=26;

 

void SerialInit()

{

TRISC6=0;

TRISC7=1; 

TX9=0;

SPBRG=64;

BRGH=1;

SYNC=0;

SPEN=1;      

TXEN=1;

RX9=0;

CREN=1;

}

 

void delay(unsigned long y)

{

int i=0;

for(i;i<y;i++);

}

 

void SerialTX(unsigned char c)

{

while(TXIF==0);

TXREG=c;

 

}

 

void send(unsigned char *s)

{

int i=0;

while(s!=’’)

{

while(TXIF==0);

TXREG=s;

i=i++;

delay(15000);

}

delay(15000);

}

 

void main (void)

{

SerialInit();

delay(15000);

while(!TXIF);

send(gsmat1);

delay(15000);

TXREG==0;

TXEN==0;

}

[srikanth]

Hi Amrith,

 

     Could you tell me the best way to learn CCS coding ..

[srikanth]

Hi Amrith,

 

     Could you tell me the best way to learn CCS coding ..

[Amrith]

Hi Ahmed..

 

Good. Will get back to you with a solution in short time.

[Amrith]

Hi Ahmed..

 

Good. Will get back to you with a solution in short time.

[Amrith]

Hi Srikanth,

 

Suggest you to visit Texas Instrument web site, they provide you online training with videos. Also you will find much more stuff on CCS.

[Amrith]

Hi Srikanth,

 

Suggest you to visit Texas Instrument web site, they provide you online training with videos. Also you will find much more stuff on CCS.

[srikanth]

  

 

   Amrit ,

 

           I mean CCS C compiler programming for PIC microcontrollers..

[srikanth]

  

 

   Amrit ,

 

           I mean CCS C compiler programming for PIC microcontrollers..

[Amrith]

Srikanth,

 

I thought that you were asking about CCS(Code Composer Studio IDE), Very familiar IDE used on multiple platforms.

 

For CCS C compiler (Custom Computer Service), you can vist ccsinfo.com, there you can find example progrms for different PIC controllers & tutorials for beginners, if you are a beginner start writing basic code using port pins to blink LED e.t.c

[Amrith]

Srikanth,

 

I thought that you were asking about CCS(Code Composer Studio IDE), Very familiar IDE used on multiple platforms.

 

For CCS C compiler (Custom Computer Service), you can vist ccsinfo.com, there you can find example progrms for different PIC controllers & tutorials for beginners, if you are a beginner start writing basic code using port pins to blink LED e.t.c

[Author]

Posts