All:

For my application, I'd like to use the ADC12 to capture data and save 512 bytes to RAM, then use the DMA to transfer the 512 bytes in a block write to an SD Card via the USCB1 in SPI mode.

My question is since the ADC12 produces a 16-bit word result, do I start the DMA after 256 samples are collected and instruct the DMA to increment the source address by one and it'll send the least-significant byte then the most-significant byte, etc...

Or...do I need to somehow break the 16-bit word ADC result into two bytes and save them into RAM? Then when I reach 512 bytes, start the DMA transfer?

Using the Foust SPI-> SD_card application note, I was able to successfully port the code to the F5528 device and intialize the SD Card. Now all I need is help with the DMA transfer of the data.

Any help you can provide would be greatly appreciated!

Thanks,
Grant

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