这是USB-GPS接收电路设计论文，详细介绍了实现的流程，目的是通过电平的转换，转串口芯片CH341A，实现了GPS与电脑的USB接口之间的通信。-This is a USB-GPS receiver circuit design papers, detailing the implementation process, the aim is to serial chip level conversion, CH341A, communication between the GPS and th