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41 lines
752 B
41 lines
752 B
/*
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* Assembly Macros For MIPS
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*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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* 2019-12-04 Jiaxun Yang Initial version
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <mips.h>
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#include <board.h>
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/**
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* This is the timer interrupt service routine.
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*/
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void rt_hw_timer_handler(void)
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{
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unsigned int count;
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count = read_c0_compare();
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write_c0_compare(count);
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write_c0_count(0);
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/* increase a OS tick */
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rt_tick_increase();
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}
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/**
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* This function will initial OS timer
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*/
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void rt_hw_timer_init(void)
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{
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write_c0_compare(CPU_HZ/2/RT_TICK_PER_SECOND);
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write_c0_count(0);
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mips_unmask_cpu_irq(7);
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}
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