board.c

来自「RT-Thread是发展中的下一代微内核嵌入式实时操作系统」· C语言 代码 · 共 54 行

/*
 * File      : board.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006, RT-Thread Develop Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.fayfayspace.org/license/LICENSE.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2006-03-24     Bernard      first implementation
 * 2006-05-05     Bernard      add DATA_COUNT definition
 */

#include <rtthread.h>
#include <rthw.h>

#include <s3c4510.h>

#define DATA_COUNT	0x7a120

/*!
 * @addtogroup lumit4510
 */
/*@{*/

void rt_timer_handler(int vector)
{
	/* reset TDATA0 */
	TDATA0 = DATA_COUNT;

	rt_tick_increase();
}

/**
 * @brief init lumit4510 board
 *
 * This function will init lumit4510 board
 */
void rt_hw_board_init()
{
	/* set timer0 register */
	TDATA0	= DATA_COUNT;
	TCNT0	= 0x0;
	TMOD	= 0x3;

	/* install interrupt handler */
	rt_hw_interrupt_install(INTTIMER0, rt_timer_handler, RT_NULL);
	rt_hw_interrupt_umask(INTTIMER0);
}

/*@}*/