40 lines
888 B
C
40 lines
888 B
C
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/**
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* @copyright (c) 2025, MacRsh
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*
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* @license SPDX-License-Identifier: Apache-2.0
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*
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* @date 2025-06-11 MacRsh First version
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*/
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#include <board/mr_board.h>
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#include <mr_x.h>
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extern uint32_t SystemCoreClock;
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void SysTick_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void SysTick_Handler(void) {
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/* Clear the interrupt */
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SysTick->SR &= ~(1 << 0);
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/* Increase clock */
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mr_clock_increase(1);
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}
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static void systick_init(mr_uint32_t tick) {
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/* Init systick */
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SysTick->CTLR = 0;
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SysTick->SR = 0;
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SysTick->CNT = 0;
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SysTick->CMP = (SystemCoreClock / tick) - 1;
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SysTick->CTLR = 0xf;
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/* Init NVIC */
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NVIC_SetPriority(SysTicK_IRQn, MR_CFG_WCH_SYSTICK_IRQ_PRIORITY);
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NVIC_EnableIRQ(SysTicK_IRQn);
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}
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void mr_board_systick_init(void) {
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/* Init systick */
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systick_init(MR_CFG_TICK_PER_SECOND);
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}
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