针对freescale的coldfire系列mcu的开源bootloader源码colilo的优化代码，可以实现串口下载烧写和交叉调试器下载烧写，较多应用于uclinux，但略做修改可以用于任何需要做一些runtime setup的系统。-against the coldfire mcu series of open-source bootload er source colilo the optimized code can be downloaded Serial cross-burning and burning Debugger downloaded, Basis for more. but slightly modified to be used for any need to do some setup runtime system.