void main(void)
{
const unsigned char *mas="\r\n---------------MASTER DEVICE-----------------\r\n";
const unsigned char * arr1 = "\r\nTaking in the text \r\n";
const unsigned char *arr2="\r\nEnter your choice \r\n 1.Slave 1(Address:0xAA\r\n2.Slave 2(Address:0xBB)\r\n3.Slave 3(Address:0xCC\r\n";
const unsigned char *arr3= "You have entered:\r\n";
const unsigned char *arr4= "\r\nUART Initialised\r\n";
const unsigned char *arr5= "\r\nI2C initialised:\r\n";
const unsigned char *msg1="\r\nSending to Slave 1 (Address 0xAA)\r\n";
const unsigned char *msg2="\r\nSending to Slave 2 (Address 0xBB)\r\n";
const unsigned char *msg3="\r\nSending to Slave 3 (Address 0xCC)\r\n";
const unsigned char *msg4="\r\nAddress sent\r\n";
const unsigned char *msg5="\r\nData sent\r\n";
const unsigned char *err="\r\nNo message will be sent since no slave no entered\r\n";
const unsigned char *fin="\r\nClosing Communication!\r\n";
const unsigned char *msgm="\r\nYou have entered choice number:\r\n";
unsigned char choice;
OSCCONbits.IRCF = 0x07; // Configure Internal OSC for 8MHz Clock
while(!OSCCONbits.HTS); // Wait Until Internal Osc is Stable
INTCON=0; // purpose of disabling the interrupts.
UART_Init(baud_rate);
UART_Write_Text(mas);
UART_Write_Text(arr4);
delay_ms(500);
I2C_init();
UART_Write_Text(arr5);
//Initialisation done
while(1)
{
UART_Write_Text(arr1);
i2c_idle();
//receive the characters until ENTER is pressed (ASCII for ENTER = 13)
is=UART_Read_Text();
UART_Write_Text(arr3);
UART_Write_Text(is);
UART_Write_Text(arr2);
choice=UART_Read();
UART_Write_Text(msgm);
UART_Write(choice);
switch(choice)
{
case 0x31:
{
UART_Write_Text(msg1);
I2C_Start();
if(I2C_address_send())//device address
{
delay_us(20);//clock settle and then send
I2C_Write_Text(is);
}
else
break;
I2C_Stop();
break;
}
case 0x32:
{
UART_Write_Text(msg2);
I2C_Start();
if(I2C_address_send1())//device address
{
delay_us(20);//clock settle and then send
I2C_Write_Text(is);
}
else
break;
I2C_Stop();
break;
}
case 0x33:
{
UART_Write_Text(msg3);
I2C_Start();
if(I2C_address_send2())//device address
{
delay_us(20);//clock settle and then send
I2C_Write_Text(is);
}
else
break;
I2C_Stop();
break;
}
default:
UART_Write_Text(err);
break;
}
//Choice entered data sent respectively to slaves now stop
//i2c_SendAcknowledge(I2C_LAST);
PIR1bits.SSPIF = 0;
UART_Write_Text(fin);
}
}
void main(void)
{
//const unsigned char *msg;
const unsigned char * arr1 = "\r\ntaking in the text \r\n";
const unsigned char *arr2="\r\nAcknowledged\r\n";
const unsigned char *arr3= "You have entered:\r\n";
const unsigned char *arr4= "UART Initialised\r\n";
const unsigned char *arr5= "Sending TO Led\r\n";
const unsigned char *arr6= "Tx of 1 byte complete\r\n";
const unsigned char *arr7= "Tx completed all bytes\r\n";
unsigned int j;
unsigned char LED_Output;
TRISB=0x00;
OSCCONbits.IRCF = 0x07; // Configure Internal OSC for 8MHz Clock
while(!OSCCONbits.HTS); // Wait Until Internal Osc is Stable
INTCON=0; // purpose of disabling the interrupts.
UART_Init(baud_rate);
UART_Write_Text(arr4);
delay_ms(500);
while(1)
{
UART_Write_Text(arr1);
is=UART_Read_Text();
UART_Write_Text(arr2);
UART_Write_Text(arr3);
UART_Write_Text(is);
//sending to led
UART_Write_Text(arr5);
while(*is)
{
for(j=0;j<=7;j++)
{
LED_Output= (*is&0x01)==1?1:0;
RB0=LED_Output;
delay_ms(125);
*is=*is>>1;
}
is++;
UART_Write_Text(arr6);
}
UART_Write_Text(arr7);
}
}
