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max3232不供电能自发自收吗?
最近我们用贵公司的芯片出现一个问题,在max3232不供电的情况下,通过电脑串口连接到max3232,在串口助手软件上能看到通信能自发自收,max3232供电后自发自收取消。这是为什么?