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想在5509A上挂一块ARM来控制摄像头,摄像头要把一帧图像数据传回DSP,请问用哪种通信方式比较合适?

如题,现在困惑的是采集的一帧图像大小在100k*16bit左右,那DSP上应该要加一个SDRAM来存放图片,如果用HPI来通信的话5509A又不能同时支持HPI和EMIF,请问怎么处理?或者有没有其他的方式