利特的USB-RS232的驱动咯，有需要的可能用得着，我搜了好久找到的。-Bartlett' s USB-RS232 driver slightly, if necessary, may Yongde Zhao, I found a long time to find.

仿真器使用代码 源码串口驱动代码 绝对正确有用-Simulator source code is absolutely correct serial port driver code useful for