bootloader_44b为Bootloader工程，在系统上电时开始执行，初始化硬件设备、准备好软件环境，最后调用操作系统内核。

增加网络功能、从PC上通过串口或网络下载文件、烧写文件、将Flash上压缩的文件解压后再运行等──这就是一个功能更为强大的Bootloader-bootloader_44b for the Bootloader project power on the system started to initialize the hardware devices, software environment is ready, the last call to the operating system kernel. Increase the network functions, from the PC via serial port or network to download files, programming files, extract compressed files on the Flash and then run the other ─ ─ This is a more powerful Bootloader