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AM1808复位后,RAM数据如何保持不变

Other Parts Discussed in Thread: AM1808

您好,我现在用AM1808芯片,用C语言进行裸机开发,程序及RAM都定义在外部DDR内。

 

现发现一个问题,在正常运行时,突然给了1808复位信号后,请问如何保持RAM区的数据不自动清零?

 

请问是要更改PROJECT设置或修改CMD或修改变量申明?请具体些,谢谢