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请问uPP通道传输的数据个数是否必须为偶数？
比如我需要传输128个float型数据，设定UPID1=0x00010000+128*4是正确的吧？
如果我想传递129个数，是否需要多传一个，凑成130个呢？
偶数字节数，你的数是float型，本身就是4字节的，多少个都是偶数字节数。所以设成129x4就行了。
