嵌入式开发中文件传输工具的设计方法

为了快速便捷地完成嵌入式设备软件的更新,设计了一种文件传输工具,它集成了串口通信机制和TFTP传输协议,使得在交叉编译环境下能够方便地下载内核和根文件系统的映像文件。采用mscomm控件实现串口调试信息的输出和命令的输入功能,通过TFTP网络传输协议实现从PC下载数据到设备并生成下载日志。与传统的下载方法相比,它操作简单,只需选择要下载的文件即可完成下载,实时获取下载过程中的状态信息,提高了效率。

The Design Method of File Transfer Tool in the Embedded Development

In order to quickly complete the software upgrade of the embedded equipment,a file transfer tool is introduced.It in-tegrates the serial port communication and the TFTP protocol for downloading of the kernel and root file system imgage file in the cross compile environment.The serial debugging information output and command Input function is completed by using MSComm control.Downloading the data from the PC to the device and generates downloading log is finished through the TFTP network transmission protocol. Compared with the traditional method,it’s operation is simple and the user can use one key op-eration of select the file to complete downloading and obtain status information in real time,this improves the efficiency.