avr 单片机 ISP 下载PC端程序，支持超级终端模式，和自定义下载模式。,avr-end single-chip ISP to download PC program to support the super-terminal model, and custom patterns to download.

将给出一个实际的的Boot Loader程序，它可以配合Windows中的超级终端程序，采用Xmodem传输协议，通过RS232接口下载更新用户的应用程序。(This section will give a practical Boot Loader program, which can cooperate with the super terminal program in Windows and use Xmodem transport protocol to download and up

Terminal program for the AVR microcontroller evaluation board