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/**************************************************************************//**
*
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-07-14 Wayne First version
*
******************************************************************************/
#include <rtthread.h>
#if defined(USE_MA35D1_SUBM)
#include <rthw.h>
#include <stdio.h>
#include "drv_common.h"
#include "board.h"
#include "drv_uart.h"
#define LOG_TAG "drv.common"
#undef DBG_ENABLE
#define DBG_SECTION_NAME LOG_TAG
#define DBG_LEVEL LOG_LVL_DBG
#define DBG_COLOR
#include <rtdbg.h>
extern void nu_clock_init(void);
void SysTick_Handler(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
}
int rt_hw_systick_init(void)
{
/* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */
SystemCoreClockUpdate();
/* Configure SysTick */
SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
return 0;
}
/**
* The time delay function.
*
* @param microseconds.
*/
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;
}
}
}
}
void idle_wfi(void)
{
__WFI();
}
rt_weak void nutool_pincfg_init(void)
{
}
/**
* This function will initial board.
*/
rt_weak void rt_hw_board_init(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* initialize base clock */
nu_clock_init();
/* initialize peripheral pin function */
nutool_pincfg_init();
/* initialize hardware interrupt */
rt_hw_interrupt_init();
#if defined(RT_USING_HEAP)
rt_system_heap_init((void *)BOARD_HEAP_START, (void *)BOARD_HEAP_END);
#endif
/* initialize uart */
rt_hw_uart_init();
#if defined(RT_USING_CONSOLE)
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
#if defined(RT_USING_HEAP)
/* Dump heap information */
rt_kprintf("Heap: Begin@%08x, END@%08x, SIZE: %d KiB\n", BOARD_HEAP_START, BOARD_HEAP_END, ((rt_uint32_t)BOARD_HEAP_END - (rt_uint32_t)BOARD_HEAP_START) / 1024);
#endif
/* initialize systick */
rt_hw_systick_init();
rt_thread_idle_sethook(idle_wfi);
#if defined(RT_USING_COMPONENTS_INIT)
rt_components_board_init();
#endif
}
#endif
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