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做SCI实验的时候，我在串口调试软件里面的发送窗口什么都没有输入，为什么还会不断的有接收到00 00 00 00 ......这些东西？
这个00是连续的还是偶尔出现 像偶尔出现的情况很常见
如果是连续00 你看看有没有设置定时发送等
