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Image running from SDRAM

Hi,

I'm using AT91SAM7SE32 for one of my project. My problem is that when I run the code from the external NOR flash then the whole system's works very slow, but when I debug the system from the SDRAM it works faster. I want that the final system should run from SDRAM so that I could get better throughput.

How can I download the image in flash to SDRAM and start it from there? I mean what should be the architecture of the bootloader.

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