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/*
* 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
* 2010-02-04 Magicoe ported to LPC17xx
* 2010-05-02 Aozima update CMSIS to 130
*/
#include <rthw.h>
#include <rtthread.h>
#include "board.h"
#include "drv_uart.h"
/**
* This is the timer interrupt service routine.
*
*/
void SysTick_Handler(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
}
/**
* This function will initial LPC54xx board.
*/
void rt_hw_board_init()
{
/* NVIC Configuration */
#define NVIC_VTOR_MASK 0x3FFFFF80
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x10000000 */
SCB->VTOR = (0x10000000 & NVIC_VTOR_MASK);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x00000000 */
SCB->VTOR = (0x00000000 & NVIC_VTOR_MASK);
#endif
SystemCoreClockUpdate();
/* init systick 1 systick = 1/(100M / 100) 100个systick = 1s*/
SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
/* set pend exception priority */
NVIC_SetPriority(PendSV_IRQn, (1 << __NVIC_PRIO_BITS) - 1);
/*init uart device*/
rt_hw_uart_init();
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#ifdef RT_USING_COMPONENTS_INIT
/* initialization board with RT-Thread Components */
rt_components_board_init();
#endif
}
/* initialization for system heap */
int rt_hw_board_heap_init(void)
{
#ifdef RT_USING_HEAP
rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
#endif
return 0;
}
void MemManage_Handler(void)
{
extern void HardFault_Handler(void);
rt_kprintf("Memory Fault!\n");
HardFault_Handler();
}
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