请问各位大侠,为什么我的基本指令(如除法、开方、sin运算)在RAM上运行的时间是手册里的两倍呢?
补充:当我把所有代码都写入ram里运行,时间基本和手册一致;而是程序烧到内部FLASH将代码,然后Boot到ram中,则除法、开方、sin、cos的执行时间变成2倍了。加法和乘法运算都正常。
想不通啊,急急急,求大侠指点~
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