100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
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/*
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* Copyright (C) 2022-2024, Xiaohua Semiconductor Co., Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-12-16 CDT first version
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*/
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#include "board.h"
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#define DBG_TAG "drv_common"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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/**
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* This function is executed in case of error occurrence.
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*/
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void _Error_Handler(char *s, int num)
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{
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LOG_E("Error_Handler at file:%s num:%d", s, num);
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while (1)
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{
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}
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}
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/**
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* This is the timer interrupt service routine.
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*/
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void SysTick_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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rt_tick_increase();
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/* leave interrupt */
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rt_interrupt_leave();
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}
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/**
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* Configures the SysTick for OS tick.
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*/
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void SysTick_Configuration(void)
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{
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stc_clock_freq_t stcClkFreq;
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rt_uint32_t cnts;
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CLK_GetClockFreq(&stcClkFreq);
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cnts = (rt_uint32_t)stcClkFreq.u32HclkFreq / RT_TICK_PER_SECOND;
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SysTick_Config(cnts);
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}
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/**
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* This function will initial HC32 board.
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*/
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void rt_hw_board_init()
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{
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PeripheralRegister_Unlock();
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SystemBase_Config();
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SystemClock_Config();
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PeripheralClock_Config();
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/* Configure the SysTick */
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SysTick_Configuration();
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/* Heap initialization */
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#if defined(RT_USING_HEAP)
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rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
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#endif
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/* Board underlying hardware initialization */
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#ifdef RT_USING_COMPONENTS_INIT
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rt_components_board_init();
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#endif
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#if defined(RT_USING_CONSOLE) && defined(RT_USING_DEVICE)
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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}
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void rt_hw_us_delay(rt_uint32_t us)
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{
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uint32_t start, now, delta, reload, us_tick;
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start = SysTick->VAL;
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reload = SysTick->LOAD;
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us_tick = SystemCoreClock / 1000000UL;
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do
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{
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now = SysTick->VAL;
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delta = start > now ? start - now : reload + start - now;
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}
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while (delta < us_tick * us);
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}
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/*@}*/
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