rt-thread-official/bsp/lpc55sxx/lpc55s69_nxp_evk/board/board.c

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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
* Copyright (c) 2019-2020, Arm Limited. All rights reserved.
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*
* 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
* 2017-08-02 XiaoYang porting to LPC54608 bsp
* 2019-08-05 Magicoe porting to LPC55S69-EVK bsp
* 2020-01-01 Karl Add PKG_USING_TFM support
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*/
#include <rthw.h>
#include <rtthread.h>
#include "board.h"
#include "clock_config.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 LPC55Sxx board.
*/
void rt_hw_board_init()
{
/* Hardware Initialization */
BOARD_InitPins();
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CLOCK_EnableClock(kCLOCK_InputMux);
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CLOCK_EnableClock(kCLOCK_Gpio0);
CLOCK_EnableClock(kCLOCK_Gpio1);
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GPIO_PortInit(GPIO, 0);
GPIO_PortInit(GPIO, 1);
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/* 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 */
#ifdef PKG_USING_TFM
/* Set the Vector Table base location at 0x00020000 when RTT with TF-M*/
SCB->VTOR = (0x00020000 & NVIC_VTOR_MASK);
#else
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/* Set the Vector Table base location at 0x00000000 */
SCB->VTOR = (0x00000000 & NVIC_VTOR_MASK);
#endif
#endif
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#ifndef PKG_USING_TFM
/* This init has finished in secure side of TF-M */
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BOARD_BootClockPLL150M();
#endif
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//BOARD_BootClockFROHF96M();
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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();
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#ifdef RT_USING_CONSOLE
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
#ifdef RT_USING_COMPONENTS_INIT
/* initialization board with RT-Thread Components */
rt_components_board_init();
#endif
#ifdef RT_USING_HEAP
rt_kprintf("sram heap, begin: 0x%p, end: 0x%p\n", HEAP_BEGIN, HEAP_END);
rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
#endif
}
/**
* This function will called when memory fault.
*/
void MemManage_Handler(void)
{
extern void HardFault_Handler(void);
rt_kprintf("Memory Fault!\n");
HardFault_Handler();
}
void rt_hw_us_delay(rt_uint32_t us)
{
rt_uint32_t ticks;
rt_uint32_t told, tnow, tcnt = 0;
rt_uint32_t reload = SysTick->LOAD;
ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
told = SysTick->VAL;
while (1)
{
tnow = SysTick->VAL;
if (tnow != told)
{
if (tnow < told)
{
tcnt += told - tnow;
}
else
{
tcnt += reload - tnow + told;
}
told = tnow;
if (tcnt >= ticks)
{
break;
}
}
}
}