/*,-----------------------------------------------------------------------------------------.| io/softuart|-----------------------------------------------------------------------------------------| this file implements a very basic 19200baud software uart| - USE AN 7.3728MHz OSC !| - does NOT use any timer| - might not work with every uart| - if interrupted by timer interrupt there might be some garbage|| Author   : {{removed according to contest rules}}|            -> circuitcellar.com avr design contest 2006|            -> Entry #AT2616||-----------------------------------------------------------------------------------------| License:| This program is free software; you can redistribute it and/or modify it under| the terms of the GNU General Public License as published by the Free Software| Foundation; either version 2 of the License, or (at your option) any later| version.| This program is distributed in the hope that it will be useful, but|| WITHOUT ANY WARRANTY;|| without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR| PURPOSE. See the GNU General Public License for more details.|| You should have received a copy of the GNU General Public License along with| this program; if not, write to the Free Software Foundation, Inc., 51| Franklin St, Fifth Floor, Boston, MA 02110, USA|| http://www.gnu.de/gpl-ger.html`-----------------------------------------------------------------------------------------*/#include "softuart.h"void softuart_put_ip(uint32_t ip){	softuart_put_uint8(ip>>24); softuart_putc('.');	softuart_put_uint8(ip>>16); softuart_putc('.');	softuart_put_uint8(ip>> 8); softuart_putc('.');	softuart_put_uint8(ip); }void softuart_put_uint16(unsigned int c){	unsigned int tmp;	unsigned int mul;	unsigned char l;		l=0;	for(mul=10000; mul>0; mul = mul/10){		tmp = '0';		while(c>=mul){			c -= mul;			tmp++;			l=1;		}		if (l==0 && tmp == '0' && mul!=1)			softuart_putc(' ');		else			softuart_putc(tmp);	}}void softuart_put_uint8(unsigned char c){	unsigned int tmp;	unsigned char mul;	unsigned char l;		l=0;		for(mul=100; mul>0; mul = mul/10){		tmp = '0';		while(c>=mul){			c -= mul;			tmp++;			l=1;		}		if (l==0 && tmp == '0' && mul!=1)			softuart_putc(' ');		else			softuart_putc(tmp);	}}void softuart_putnewline(){	softuart_puts_progmem("\r\n");}void softuart_puts_progmem2(PGM_P pointer){	unsigned char c = pgm_read_byte(pointer++);	while(c){		softuart_putc(c);		c = pgm_read_byte(pointer++);	}}void softuart_puts (char *s){	while (*s){		softuart_putc(*s);		s++;	}}void softuart_putc(unsigned char c){		unsigned char cnt = 8;		//send startbit: (=low)		SOFTUART_TXPIN_LO();		SOFTUART_DELAY();				while(cnt > 0){			if (c & 0x01)				SOFTUART_TXPIN_HI();			else				SOFTUART_TXPIN_LO();			//wait			SOFTUART_DELAY();			c = c>>1;			cnt--;		}		//send stopbit:		SOFTUART_TXPIN_HI();		SOFTUART_DELAY();}inline void softuart_init(void){	//set up txpin as output:	SOFTUART_DDR |= (1<<SOFTUART_TXPIN);}