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Quick_digital_IO_interrupt
内置的引脚读写函数digitalRead和digitalWrite需要每次将引脚转换成寄存器地址再进行读写,而且还需要检查PWM计时器设定,虽然增加了可靠性,减少了内存占用,但是性能较低,无法满足超高频操作的需求。内置的引脚中断操作功能也十分有限。本库牺牲一定内存 ...
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