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标题: 串口驱动 [打印本页]

作者: zaxis 时间: 2006-03-14 16:33
标题: 串口驱动
There is only 4 pin in our hardware (ARM9+linux), And we want to use full 9 pin of modem.

so we want to use software to simulate 9 pin, using IO ports. How can we do it ?

Any suggestion is appreciated !

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