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请问28069的程序从复位到运行main函数之间都有哪些过程?
启动bootloader(确认是否连接仿真器,如果有,后面的内容无视,以仿真器控制为准,如果没有检查从何处启动),执行加密检查,校准ADC与内部晶振OSC,之后运行到主程序。当然实际通常是跳转到Flash的A扇区,此时你可以在进入main()函数之前的codestartbranch汇编文件里做你想做的其它事。