startup.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2009-01-05     Bernard      first implementation
 * 2014-07-13     xiaonong      for LPC43xx
 */

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

#include "board.h"

extern int rt_application_init(void);

/**
 * This function will startup RT-Thread RTOS.
 */
void rtthread_startup(void)
{
    /* initialize board */
    rt_hw_board_init();

    /* show version */
    rt_show_version();

#ifdef RT_USING_HEAP
#if LPC_EXT_SDRAM
    rt_system_heap_init((void *)LPC_EXT_SDRAM_BEGIN, (void *)LPC_EXT_SDRAM_END);
    sram_init();
#else
    rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
#endif
#endif

    /* initialize scheduler system */
    rt_system_scheduler_init();

    /* initialize system timer*/
    rt_system_timer_init();

    /* initialize application */
    rt_application_init();

    /* initialize timer thread */
    rt_system_timer_thread_init();

    /* initialize idle thread */
    rt_thread_idle_init();

    /* start scheduler */
    rt_system_scheduler_start();

    /* never reach here */
    return ;
}

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

    /* startup RT-Thread RTOS */
    rtthread_startup();

    return 0;
}