绝对原创代码，目前正在产品上应用。基于NXP的LPC2220的串口升级程序，在PC端用VC++ 6.0编写，对于ARM7特别是IAP升级具有很好的参考价值。-Absolute original code, and is currently being applied on products. Based on NXP' s LPC2220 serial upgrade, in the PC side using VC++ 6.0 to prepare for the ARM7 partic