rt-thread/bsp/nxp/mcx/mcxc/frdm-mcxc444/board/board.c

/*
 * Copyright (c) 2015, Freescale Semiconductor, Inc.
 * Copyright 2016-2018 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <stdint.h>
#include "board.h"
#include "pin_mux.h"
#include "fsl_common.h"


void rt_hw_board_init()
{
    CLOCK_EnableClock(kCLOCK_PortA);
    CLOCK_EnableClock(kCLOCK_PortB);
    CLOCK_EnableClock(kCLOCK_PortC);
    CLOCK_EnableClock(kCLOCK_PortD);
    CLOCK_EnableClock(kCLOCK_PortE);

    BOARD_InitBootClocks();
    BOARD_InitPins();


    SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
    /* set pend exception priority */
    NVIC_SetPriority(PendSV_IRQn, (1 << __NVIC_PRIO_BITS) - 1);


#ifdef RT_USING_COMPONENTS_INIT
    /* initialization board with RT-Thread Components */
    rt_components_board_init();
#endif

#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif

#ifdef RT_USING_HEAP
    rt_kprintf("sram heap, begin: %p, end: %p\n", HEAP_BEGIN, HEAP_END);
    rt_system_heap_init((void *)HEAP_BEGIN, (void *)(HEAP_END));
#endif
}


/**
 * This is the timer interrupt service routine.
 *
 */
void SysTick_Handler(void)
{
    /* enter interrupt */
    rt_interrupt_enter();

    rt_tick_increase();

    /* leave interrupt */
    rt_interrupt_leave();
}