?? startup.c
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/* * File : startup.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://openlab.rt-thread.com/license/LICENSE * * Change Logs: * Date Author Notes * 2006-02-26 Bernard first implementation * 2006-05-05 Bernard add two test thread
* 2006-08-10 Bernard use rt_show_version to display version information * 2006-10-05 Bernard add _svc_stack_start for SVC32 stack */#include <rtthread.h>#include <rthw.h>#include <s3c4510.h>#include <board.h>char _undefined_stack_start[128];char _abort_stack_start[128];char _irq_stack_start[1024];char _fiq_stack_start[1024];char _svc_stack_start[4096];extern void rt_hw_interrupt_init(void);extern void rt_hw_board_init(void);extern void rt_serial_init(void);extern void rt_system_timer_init(void);extern void rt_system_scheduler_init(void);extern void rt_system_heap_init(void* begin_addr, void* end_addr);extern void rt_thread_idle_init(void);extern void rt_hw_cpu_icache_enable(void);
extern void rt_show_version(void);/** * @addtogroup lumit4510 */
/*@{*/#ifdef __CC_ARMextern unsigned char* __bss_start;extern unsigned char* __bss_end;#elseextern unsigned char __bss_start;extern unsigned char __bss_end;#endif#ifdef RT_USING_FINSHextern void finsh_system_init(void);#endifextern int rt_application_init(void);/** * This function will startup RT-Thread RTOS. */void rtthread_startup(void){ /* enable cpu cache */ rt_hw_cpu_icache_enable(); rt_hw_cpu_dcache_enable(); /* init hardware interrupt */ rt_hw_interrupt_init(); /* init board */ rt_hw_board_init(); /* init hardware serial */ rt_serial_init();
rt_show_version(); /* init tick */ rt_system_tick_init(); /* init kernel object */ rt_system_object_init(); /* init timer system */ rt_system_timer_init(); /* init memory system */#ifdef RT_USING_HEAP#ifdef __CC_ARM
rt_system_heap_init((void*)__bss_end, 0x1000000);#else
rt_system_heap_init((void*)&__bss_end, (void*)0x1000000);#endif#endif
/* init scheduler system */ rt_system_scheduler_init();#ifdef RT_USING_HOOK /* set idle thread hook */ rt_thread_idle_sethook(rt_hw_led_flash);#endif /* init application */ rt_application_init(); /* init finsh */#ifdef RT_USING_FINSH /* init the finsh input */ rt_hw_finsh_init(); /* init finsh */ finsh_system_init();#endif /* init idle thread */ rt_thread_idle_init(); /* unmask global interrupt */ rt_hw_interrupt_umask(INTGLOBAL); /* start scheduler */ rt_system_scheduler_start(); /* never reach here */ return ;}/*@}*/
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