The port can be used for trickle charging as well as for modem tethering to a computer.
这个接口可以用于充电或将手机作为调职解调器连接计算机。
Around 25 percent of the world's computer users now have at least a cable modem or DSL connection; of course, this implies that speed is no longer an issue.
现在,世界上大约 25% 的计算机用户至少有一条光纤调制解调器或者 DSL 连接,当然,这意味着速度不再是问题。
It is important that you use a null modem cable; if you use a typical serial cable, the target computer expects a serial device and not another serial port, and you cannot debug the computer.
有一点很重要,那就是要使用零调制解调器电缆,如果您使用普通的串行电缆,目标计算机则期望与串行设备通信,而不是与另一个串行端口通信,这样您就无法调试该计算机。
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