//////////////////////////////////////////////////////////////////////////////////// Copyright(c) 2001-2002 Hybus Co,.ltd. All rights reserved.//// Module name://      serial.c//// Description://////// Author://      bedguy//// Created://      2002.10//////////////////////////////////////////////////////////////////////////////////#include "serial.h"#include "types.h"void SerialInit(ulong baud){   // GP39, GP40, GP41 UART(10).   GAFR1_L |= 0x000A8000;	   GPDR1   |= 0x00000380;   // 8-bit, 1 stop, no parity .   FFLCR = 0x00000003;   // Reset tx, rx FIFO. clear. FIFO enable   FFFCR = 0x00000007;   // UART Enable Interrupt   FFIER = 0x00000040;   // DLAB set=latch registers, DLAB clear.   FFLCR |= 0x00000080;   // baud rate .    FFDLL = baud;   // DLAB clear, .   FFLCR &= 0xFFFFFF7F;   // Transmit Shift Register, Transmit Holding Register, FIFO    //    while(! FFLSR & 0x00000040 );   return;}void SerialOutputByte(const char c){	// FIFO.	while ((FFLSR & 0x00000020) == 0 );	FFTHR = ((ulong)c & 0xFF);	// c=='\n' "\n\r".	if (c=='\n') SerialOutputByte('\r');}int SerialInputByte(char *c){	// FIFO.	if((FFLSR & 0x00000001)==0){		return 0;	} else {		(volatile char)*c = FFRBR;		return 1;	}}