rt-thread-official/bsp/lpc2478/applications/startup.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2008-12-11     xuxinming    first version
 * 2010-4-3       LiJin        add init soft timer thread
 */

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

#include <LPC24xx.h>

/**
 * @addtogroup LPC2478
 */
/*@{*/

extern int  rt_application_init(void);

#ifdef __CC_ARM
extern int Image$$RW_IRAM1$$ZI$$Limit;
#else
extern int __bss_end;
#endif

/**
 * This function will startup RT-Thread RTOS.
 */
void rtthread_startup(void)
{
    /* init hardware interrupt */
    rt_hw_interrupt_init();

    /* init board */
    rt_hw_board_init();

    rt_show_version();

    /* init timer system */
    rt_system_timer_init();

    /* init memory system */
#ifdef RT_USING_HEAP
#ifdef __CC_ARM
    rt_system_heap_init((void *)&Image$$RW_IRAM1$$ZI$$Limit, (void *)0x40010000);
#else
    rt_system_heap_init((void *)&__bss_end, (void *)0x40010000);
#endif
#endif

    /* init scheduler system */
    rt_system_scheduler_init();

    /* init application */
    rt_application_init();

    /* init soft timer thread */
    rt_system_timer_thread_init();

    /* init idle thread */
    rt_thread_idle_init();

    /* start scheduler */
    rt_system_scheduler_start();

    /* never reach here */
    return ;
}

#ifdef __CC_ARM
int main(void)
{
    /* disable interrupt first */
    rt_hw_interrupt_disable();

    /* invoke rtthread_startup */
    rtthread_startup();

    return 0;
}
#endif

/*@}*/