#include<pic.h>
 
 
    CONFIG(0x3f72);
 
 
#define SBIT_TXEN
5
 
#define SBIT_SPEN
7
 
#define SBIT_CREN
4
 
 
void UART_Init(int baudRate)
{
TRISC=0x80; // Configure Rx pin as input and Tx as output TXSTA=(1<<SBIT_TXEN); // Asynchronous mode, 8-bit data & enable transmitter
 
 
RCSTA=(1<<SBIT_SPEN) | (1<<SBIT_CREN); // Enable Serial Port and 8-bit continuous receive
SPBRG = (20000000UL/(long)(64UL*baudRate))-1; // baud rate @20Mhz Clock
}
 
void UART_TxChar(char ch)
{
while(TXIF==0); // Wait till the transmitter register becomes empty TXIF=0; // Clear transmitter flag
TXREG=ch; // load the char to be transmitted into transmit reg
}
 
 
char UART_RxChar()
{
while(RCIF==0); // Wait till the data is received RCIF=0; // Clear receiver flag
return(RCREG); // Return the received data to calling function
}
void main()
{
char i,a[]={"Press Any Key in Keyboard:"}; char ch;
 
UART_Init(9600); //Initialize the UART module with 9600 baud rate for(i=0;a[i]!=0;i++)
{
UART_TxChar(a[i]); // Transmit predefined string
}
 
while(1)
{
ch = UART_RxChar(); // Receive a char from serial port UART_TxChar(ch); // Transmit the received char
}
}

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