#include "s3c2410.h"#include "serial.h"#define	TXD0READY	(1<<2)#define	RXD0READY	(1)void init_uart(void){//初始化UART	GPHCON |= 0xa0;		//GPH2,GPH3 used as TXD0,RXD0	GPHUP	 = 0x0c;		//GPH2,GPH3內(nèi)部上拉	ULCON0	 = 0x03;		//8N1		UCON0	 = 0x05;		//查詢(xún)方式	UFCON0 = 0x00;		//不使用FIFO	UMCON0 = 0x00;		//不使用流控	UBRDIV0 = 12;		//波特率為57600}void putc(unsigned char c){	while( ! (UTRSTAT0 & TXD0READY) );	UTXH0 = c;}unsigned char getc(void){#ifdef SERIAL_ECHO	unsigned char ret;#endif		while( ! (UTRSTAT0 & RXD0READY) );	ret = URXH0;#ifdef SERIAL_ECHO		if (ret == 0x0d || ret == 0x0a)	{		putc(0x0d);		putc(0x0a);	}	else	{		putc(ret);			}#endif		return ret;}