hpm6750/controller_yy_app/software/soft_time.c

#include "hard_system_time.h"

#include "soft_time.h"

//系统时间定时器初始化
void system_time_initial(void) { system_time_init(); }

//获取系统时间
unsigned int micros(void) { return hard_micros(); }

//获取两次时间差，同时处理超过72分钟重新计时的错误问题。单位us
#define ERR_DT 2500

unsigned int time_interval(unsigned int time_cur, unsigned int *time_last)
{
    unsigned int interval = time_cur - *time_last;

    if (time_cur < *time_last)
    {
        *time_last = time_cur;
        interval = ERR_DT;
    }

    return interval;
}

/*
测试发现，32位寄存器的CPU上两个时间差不会出现一个循环后卡死的情况。//10081142 -
4105048205 = 200000233;
测试micros() = 10081142(0X 99 D376), system_time = 4105048205(0X F4AE 108D),
micros() - system_time = 200000233.

*/
//试图解决32位定时器只能计时72分钟，用64位的变量来累计计时
void time_hookfunction(void) {}