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Altera_Forum's avatar
Altera_Forum
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16 years ago

DMA memtest.c confusion

Hi, I am using DMA device in my Nios program for DE1 board. The code memtest.c is taken from the example given in Nios IDE. The part of the code is shown below between green arterisk: *******...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Mainly you should avoid native addressing since it only allows for atomic accesses. The direct macros use specific byte enables based on the access size which is sometimes needed especially during accesses that could be destructive.