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你好，请问DSP计时的单位是什么，微妙还是纳秒？

user5910726
Intellectual 510 points


请教一下下面代码输出的时间单位是什么？微妙还是纳秒？

TSCL= 0,TSCH=0;
t_start = _itoll(TSCH, TSCL);

t_stop = _itoll(TSCH, TSCL);
t_overhead = t_stop - t_start;