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例如计算下面语句,需要多长时间?60M的频率。
iq0 = _IQ10mpy(10,255);
目前我测试的三角函数_IQ10sin()的运行时间为8us左右,正常吗?
测试时间是通过GPIO引脚通过示波器观察电平变化看的。