WebSVN - idreammicro-avr - Blame - Rev 44 - /trunk/projects/clock/clock.c

Rev	Author	Line No.	Line
19	jlesech	1	/************************************************************************//
		2	* \brief DS1307 RTC library - Demonstration program
		3	* \author Copyright (C) 2011 Julien Le Sech - www.idreammicro.com
		4	* \version 1.0
		5	* \date 20090501
		6	*
		7	* This file is part of the iDreamMicro library.
		8	*
		9	* This library is free software: you can redistribute it and/or modify it under
		10	* the terms of the GNU Lesser General Public License as published by the Free
		11	* Software Foundation, either version 3 of the License, or (at your option) any
		12	* later version.
		13	*
		14	* This library is distributed in the hope that it will be useful, but WITHOUT
		15	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
		16	* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
		17	* details.
		18	*
		19	* You should have received a copy of the GNU Lesser General Public License
		20	* along with this program. If not, see http://www.gnu.org/licenses/
		21	******************************************************************************/
		22
		23	/************************************************************************//
		24	* \file demo_ds1307.c
		25	******************************************************************************/
		26
		27	/******************************************************************************
		28	* Header file inclusions.
		29	******************************************************************************/
		30
37	jlesech	31	#include <deuligne/deuligne.h>
19	jlesech	32	#include <ds1307/ds1307.h>
37	jlesech	33	#include <twi/twi.h>
19	jlesech	34	#include <usart/usart0.h>
		35	#include <useful/datetime.h>
		36
		37	#include <avr/io.h>
		38	#include <util/delay.h>
		39
42	jlesech	40	#include <assert.h>
19	jlesech	41	#include <stdio.h>
24	jlesech	42	#include <stdlib.h>
19	jlesech	43	#include <string.h>
		44
		45	/******************************************************************************
42	jlesech	46	* Private function prototypes.
		47	******************************************************************************/
		48
		49	/************************************************************************//
		50	* \fn static void clock__transmit_string(const char* p_string)
		51	*
		52	* \brief Transmit a string through USART.
		53	*
		54	* \param[in] p_string String to transmit.
		55	******************************************************************************/
		56	static
		57	void
		58	clock__transmit_string
		59	(
		60	const char* p_string
		61	);
		62
		63	/******************************************************************************
19	jlesech	64	* Main function.
		65	******************************************************************************/
		66
		67	/************************************************************************//
		68	* \fn int main(void)
		69	*
		70	* \brief Main function.
		71	*
		72	* \return 0
		73	******************************************************************************/
		74	int main(void)
		75	{
		76	// Initialize USART0.
		77	usart0__initialize(NULL);
		78
37	jlesech	79	// Enable transmitter.
19	jlesech	80	usart0__enable_transmitter();
		81
37	jlesech	82	// Initialize TWI.
44	jlesech	83	twi__initialize(DS1307__CLOCK_RATE);
37	jlesech	84
19	jlesech	85	// Initialize RTC.
42	jlesech	86	ds1307__initialize();
19	jlesech	87
42	jlesech	88	// Declare some variables.
43	jlesech	89	datetime__time_t time;
		90	ds1307__hour_mode_t hour_mode;
		91	datetime__date_t date;
19	jlesech	92
42	jlesech	93	// Initialize Deuligne and configure display.
37	jlesech	94	deuligne__initialize();
43	jlesech	95	deuligne__set_display(true, false, false);
37	jlesech	96
		97	// Switch on backlight.
		98	deuligne__switch_on_backlight();
		99
42	jlesech	100	for (;;)
		101	{
		102	// Get RTC time.
		103	ds1307__get_time(&time, &hour_mode);
19	jlesech	104
42	jlesech	105	// Get RTC date.
		106	ds1307__get_date(&date);
19	jlesech	107
42	jlesech	108	char str_date[] = "dd/mm/yy";
37	jlesech	109	snprintf
		110	(
		111	str_date,
		112	strlen(str_date) + 1,
		113	"%02u/%02u/%02u",
		114	date.date,
		115	date.month,
		116	date.year
		117	);
19	jlesech	118
37	jlesech	119	char str_time[] = "hh:mm:ss";
		120	snprintf
		121	(
		122	str_time,
		123	strlen(str_time) + 1,
		124	"%02u:%02u:%02u",
		125	time.hours,
		126	time.minutes,
		127	time.seconds
		128	);
19	jlesech	129
42	jlesech	130	clock__transmit_string(&(str_date[0]));
37	jlesech	131	usart0__transmit_byte(' ');
42	jlesech	132	clock__transmit_string(&(str_time[0]));
37	jlesech	133	usart0__transmit_byte('\n');
		134
		135	deuligne__set_cursor_position(DEULIGNE__DISPLAY_LINE_1, 0);
		136	deuligne__write_string(str_date);
		137
		138	deuligne__set_cursor_position(DEULIGNE__DISPLAY_LINE_2, 0);
		139	deuligne__write_string(str_time);
		140
42	jlesech	141	_delay_ms(1000);
		142	}
19	jlesech	143
42	jlesech	144	return 0;
19	jlesech	145	}
42	jlesech	146
		147	/******************************************************************************
		148	* Private function definitions.
		149	******************************************************************************/
		150
		151	/************************************************************************//
		152	* \fn static void clock__transmit_string(const char* p_string)
		153	*
		154	* \brief Transmit a string through USART.
		155	*
		156	* \param[in] p_string String to transmit.
		157	******************************************************************************/
		158	static
		159	void
		160	clock__transmit_string
		161	(
		162	const char* p_string
		163	){
		164	// Check the preconditions.
		165	assert(NULL != p_string);
		166
		167	while (*p_string != '\0')
		168	{
		169	usart0__transmit_byte(*p_string);
		170	p_string++;
		171	}
		172	}

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(root)/trunk/projects/clock/clock.c - Rev 44