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Altera_Forum
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14 years ago

Urgent: DMA Timing Analysis Result

Hello. Currently I am using DMA to transfer data from SDRAM to SRAM. The size of the data is 10digit (from 0 to 9). the result from performance counter showing DMA is slower than using IOWR. why? is ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Yes transferring a small amount of data will most probably be slower with a DMA, because of the time spent to configure the DMA core. The highest gains are with big transfers.