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想用DSP5509A的mic口和line口采集两路音频信号,然后存储在SDRAM中,关于SDRAM地址的分配怎么配置呢?

如题,想用DSP5509A的mic口和line口采集两路音频信号,然后存储在SDRAM中,关于SDRAM地址的分配怎么配置呢?想用5509A采集两个音频信号,不知道用mic和Line口是否。