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L138 boot 问题



想编写一个程序,再ARM端实现二级boot功能,

1、首先boot程序启动,然后通过串口读入运行程序事先生成的bin文件,把bin文件写入到flash中;已经实现用的串口的超级终端

2、然后启动再启动运行程序。目前没有思路,向高手求思路。