设计了调试程序和串口设备驱动程序在下载升级模块中，

根据网卡工作原理和操作原理，完成了网卡设备驱动程序和

设备驱动程序的设计。

-Designed debugger and serial device drivers download upgrade module, in accordance with the principle and operation principles of cards to complete the network card device driver and device driver design.