You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.0 KiB
101 lines
2.0 KiB
/*
|
|
* Copyright (C) 2021, Huada Semiconductor Co., Ltd.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2021-08-19 pjq first version
|
|
*/
|
|
|
|
|
|
|
|
#include <rthw.h>
|
|
#include <rtthread.h>
|
|
|
|
#include "board.h"
|
|
|
|
/**
|
|
* @addtogroup HC32
|
|
*/
|
|
|
|
/*@{*/
|
|
|
|
/**
|
|
* @brief BSP clock initialize.
|
|
* Set board system clock 24Mhz
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
void rt_hw_board_clock_init(void)
|
|
{
|
|
Sysctrl_SetRCHTrim(SysctrlRchFreq24MHz);
|
|
Sysctrl_ClkSourceEnable(SysctrlClkRCH, TRUE);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* Function Name : SysTick_Configuration
|
|
* Description : Configures the SysTick for OS tick.
|
|
* Input : None
|
|
* Output : None
|
|
* Return : None
|
|
*******************************************************************************/
|
|
void SysTick_Configuration(void)
|
|
{
|
|
SystemCoreClockUpdate();
|
|
SysTick_Config(SystemCoreClock/RT_TICK_PER_SECOND);
|
|
}
|
|
|
|
/**
|
|
* 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 initialize HC32 board.
|
|
*/
|
|
void rt_hw_board_init()
|
|
{
|
|
/* Configure the System clock */
|
|
rt_hw_board_clock_init();
|
|
|
|
/* Configure the SysTick */
|
|
SysTick_Configuration();
|
|
|
|
#ifdef RT_USING_HEAP
|
|
rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
|
|
#endif
|
|
|
|
#ifdef RT_USING_COMPONENTS_INIT
|
|
rt_components_board_init();
|
|
#endif
|
|
|
|
#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
|
|
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
|
|
#endif
|
|
}
|
|
|
|
void rt_hw_us_delay(rt_uint32_t us)
|
|
{
|
|
uint32_t start, now, delta, reload, us_tick;
|
|
start = SysTick->VAL;
|
|
reload = SysTick->LOAD;
|
|
us_tick = SystemCoreClock / 1000000UL;
|
|
|
|
do{
|
|
now = SysTick->VAL;
|
|
delta = start > now ? start - now : reload + start - now;
|
|
}
|
|
while(delta < us_tick * us);
|
|
}
|
|
/*@}*/
|
|
|