31 lines
444 B
C
31 lines
444 B
C
#include "bsp_tim.h"
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// tick_1ms_cnt在SysTick_Handler()中1ms +1
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volatile uint32_t tick_1ms_cnt = 0;
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/**
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* @description: 以SysTick（1ms）为基础
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* @return {uint32_t}
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*/
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uint32_t BSP_Get_Tick(void)
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{
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/* Platform implementation */
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return tick_1ms_cnt;
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}
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// SysTick中断函数
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__INTERRUPT
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__HIGH_CODE
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void SysTick_Handler()
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{
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static uint8_t cnt_ms = 0;
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SysTick->SR = 0; // 清除中断标志
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tick_1ms_cnt++;
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cnt_ms++;
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}
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