一款USB转串口工具设计资料,资料齐全.内含电路原理图,电路图非常简单,PC机的驱动程序,以及转换ic的中文资料.笔者原创,强烈推荐-A USB to serial port tool design information, are well documented. Containing circuit schematics, circuit diagrams is very simple, PC machine drivers, as well as the conversion of Chi