/*                                                                            									*/
/*  SERIAL.C:  Low Level Serial Routines                                     						*/
/*                                                                           									*/
/***********************************************************************************/

#include "LPC21xx.H"                    				 /* LPC21xx definitions               		*/

#define CR     0x0D


void init_serial (void)  {			/* Initialize Serial Interface				*/
    PINSEL0 = 0x00050000;					/* Enable RxD1 and TxD1              		*/
    U1LCR = 0x83;						/* 8 bits, no Parity, 1 Stop bit     			*/
    U1DLL = 97;							/* 9600 Baud Rate @ 15MHz VPB Clock  	*/
    U1LCR = 0x03;						/* DLAB = 0                          			*/
}


int putchar (int ch)  {				/* Write character to Serial Port    		*/

    if (ch == '\n')  {
        while (!(U1LSR & 0x20));
        U1THR = CR;						/* output CR 						*/
    }
    while (!(U1LSR & 0x20));
    return (U1THR = ch);
}


int getchar (void)  {					/* Read character from Serial Port   		*/

    while (!(U1LSR & 0x01));

    return (U1RBR);
}