110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/*
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* File : startup.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2012, RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.fayfayspace.org/license/LICENSE.
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*
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* Change Logs:
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* Date Author Notes
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* 2006-09-15 QiuYi the first version
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* 2006-10-10 Bernard update to 0.2.2 version
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include "board.h"
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extern void rt_hw_console_init(void);
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extern void rt_hw_board_init(void);
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extern int rt_application_init(void);
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//extern void rt_hw_interrupt_init(void);
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//extern void rt_system_timer_init(void);
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//extern void rt_system_scheduler_init(void);
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//extern void rt_thread_idle_init(void);
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#ifdef RT_USING_FINSH
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extern void finsh_system_init(void);
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extern void finsh_set_device(const char *device);
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#endif
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extern unsigned char __bss_start[];
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extern unsigned char __bss_end[];
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/**
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* @addtogroup QEMU
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*/
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/*@{*/
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/* clear .bss */
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void rt_hw_clear_bss(void)
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{
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unsigned char *dst;
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dst = __bss_start;
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while (dst < __bss_end)
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*dst++ = 0;
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}
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/**
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* This function will startup RT-Thread RTOS
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*/
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void rtthread_startup(void)
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{
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/* clear .bss */
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rt_hw_clear_bss();
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/* init hardware interrupt */
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rt_hw_interrupt_init();
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/* init the console */
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rt_hw_console_init();
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rt_console_set_device("console");
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/* init board */
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rt_hw_board_init();
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rt_show_version();
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/* init tick */
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rt_system_tick_init();
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/* init kernel object */
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rt_system_object_init();
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/* init timer system */
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rt_system_timer_init();
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/* init memory system */
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#ifdef RT_USING_HEAP
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/* RAM 16M */
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rt_system_heap_init((void *)&__bss_end, (void *)(1024UL*1024*8));
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#endif
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/* init scheduler system */
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rt_system_scheduler_init();
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/* init application */
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rt_application_init();
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#ifdef RT_USING_FINSH
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/* init finsh */
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finsh_system_init();
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finsh_set_device("console");
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#endif
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/* init idle thread */
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rt_thread_idle_init();
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/* start scheduler */
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rt_system_scheduler_start();
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/* never reach here */
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return ;
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}
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/*@}*/
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