Need Help, Unable to Receive Messages

Hi Guys,
Hope you can help me on this one, I'm working on this particular school project. I'm able to send messages to a device, however, I can't receive any.

Here's my program code, please pardon my code. I'm still learning.

Master Code:
==========

unsigned short data[8] = "";
unsigned short address[3] = {160,161,162};
char rs_msg[5] = "";
int rxflag = 0;
int txflag = 0;
int x = 0, i = 0;
int iIndex = 0;
int pc_msg = 0;


void enable_interrupt()
{
PIE1.RCIE = 1; // Enable interrupt
INTCON.PEIE = 1; // on byte received
PIE1.TXIE = 0; // via USART (RS485)
INTCON.GIE = 1; // Set into receive status
}

void disable_interrupt()
{
PIE1.RCIE = 0; // disable interrupt
INTCON.PEIE = 0; // on byte received
PIE1.TXIE = 0; // via USART (RS485)
INTCON.GIE = 0;
}

void send_pc()
{
int y = strlen(rs_msg);
int ind = 0;

while (y > 0){

if(rs_msg[ind] != '<' && rs_msg[ind] != '>' )
{

Usart_Write(rs_msg[ind]);
Lcd_Custom_Chr(3,1,rs_msg[ind]);
delay_ms(300);
}

y--;
ind++;
}
}

void clear_rs_data()
{

int ind = strlen(rs_msg);
lcd_Custom_chr_cp(ind+48);

while(ind >= 0){
rs_msg[ind] =0;
ind--;
}
x = 0;
}

void clear_bufferData()
{
int ind = strlen(data);
lcd_Custom_chr_cp(ind+48);

while(ind >= 0){
data[ind] =0;
ind--;

}
x=0;
}

void interrupt(void)
{
RS485Master_Receive(data);

if(data[0])
{
rxflag = 1;
}
}
void showRoomNo()
{
unsigned short j = 0;

data[4] = 0; //Clear message received flag
delay_ms(100);
j = data[3]; //Number of data bytes received

for (i = 0; i < j; i++) {
rs_msg = data[x];
x++;
}
Lcd_Custom_Cmd(LCD_CLEAR);
Lcd_Custom_Out(2,2,"Room Number: ");
Lcd_Custom_Out(2,16,rs_msg);
delay_ms(100);

}

void main () {

char sReminder[21] = "";

TRISC.F2 = 0;
TRISD.F1 = 0;


Lcd_Custom_Config(&portb,1,2,3,4, &portb, 7,6,5);
Usart_Init(9600); // Initialize usart module
RS485Master_Init(&PORTC, 2);
Lcd_Custom_Out(1, 1,"Master");
delay_ms(1000);
Lcd_Custom_Cmd(Lcd_Clear);

while ( 1)
{
enable_interrupt();

if (rxflag == 1)
{

while (rs_msg[x-1] != '>')
{

if (rxflag == 1) {

showRoomNo();
}
}
disable_interrupt();
send_pc();

Lcd_Custom_Out(4,1,"sent to pc");
rxflag = 0;
clear_rs_data();
clear_bufferData();

}

else
{
Usart_write(pc_msg);
}
}
}


Slave Code:
=========

//--------------------Declaration of Global variables------------------->
char msg[3]="1";
char roomNo[5]="<1>";
int temp[21];
int i=0;
int k=0;
int rxflag=0;
int j=0;
int index=0;
unsigned short data[8] = ""; // buffer for receiving/sending messages

//------------------End of declarations------------------>

//------------------Function declarations---------------->

void interrupt();
void clear_temp();
void ipakita();
void clear_bufferData();
void clear_roomNo();
void send_roomNo();
void display_rs();
void erase_rs_data();

//--------------End of function declaration-------------->

//------------------Function operations------------------>

void interrupt (void)
{
RS485Slave_Receive(data);

if (data[3] > 0)
rxflag = 1;
}

void enable_interrupt ()
{
PIE1.RCIE = 1;
INTCON.PEIE = 1;
PIE1.TXIE = 0;
INTCON.GIE = 1;
}

void disable_interrupt ()
{
PIE1.RCIE = 0; // Enable interrupt
INTCON.PEIE = 0; // on byte received
PIE1.TXIE = 0; // via USART (RS485)
INTCON.GIE = 0;
}

void send_roomNo ()
{
int temp1=0;
int temp2=0;
int temp3 =0;
int ind =0;
int res1 =0;
int res2 =0;
char room[4]="";
temp3 = strlen(roomNo);
res1 = temp3/3;
res2 = temp3%3;


while (temp2 < res1) {

for (temp1 =0;temp1<3;temp1++) {
room[temp1] = roomNo[ind];
ind++;
}
RS485Slave_Send(room, 3);
delay_ms(500);
temp2++;
}
if (res2 > 0 && res2 < 3) {

for (temp1 =0;temp1<res2;temp1++) {
room[temp1] = roomNo[ind];
ind++;
}

RS485Slave_Send(room, res2);
delay_ms(500);

}
}

void showRoomNo()
{
unsigned short j = 0;

delay_ms(108);
j = data[3]; // Number of data bytes received

for (k = 0; k < j; k++) {
msg[k]=data[k];
data[k] = 0;
Lcd_Custom_Out(4, 10,msg);
}
}

void erase_rs_data ()
{

int ind= 0;
ind= strlen(msg);

while(ind >= 0){
msg[ind] =0;
ind--;
}
}

void clear_temp ()
{
int val=0;
for (val=0;val<i;val++){
temp[val]=0;
}
i=0;
}

void clear_bufferData ()
{

int val=0;

for (val=0;val<9;val++){
data[val]=0;
}
}

void clear_roomNo ()
{

int val=0;

for (val=0;val<=i;val++){
roomNo[val]=0;
}
}


//---------------End of function operations-------------->

void main () {

char sReminder01[21] = " Time to Take";
char sReminder02[21] = " Medicine";
TRISB = 0x00; //set portB as input
TRISC.F2 = 0; //set portC pin2 as output
TRISD.f0 = 1;
TRISD.f1 = 1;

Lcd_Custom_Config(&portb, 1,2,3,4, &portb, 7,6,5); //initialize lcd
Usart_Init(9600);
RS485Slave_Init(&PORTC, 2, 160); // Initialize MCU as Slave with address 160
Lcd_Custom_Out(1,1, "Slave 1");
delay_ms(1000); // Initialize baud rate
Lcd_Custom_Cmd(Lcd_Clear);

while (1)
{
enable_interrupt();


if(portd.f0 == 0 || portd.f1 == 0)
{

Lcd_Custom_Out(1,1, "Sending Message...");

send_roomNo();

Lcd_Custom_Cmd(Lcd_Clear);

}


if (rxflag == 1)
{
Lcd_Custom_Out(2,5,sReminder01);
Lcd_Custom_Out(3,7,sReminder02);
rxflag=0;
}
clear_bufferData();
erase_rs_data();
}
}