DMA performance

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DMA performance

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martindusek
Contributor V

Hi,

what performance (MB/s) should I expect, when transferring data from GPIO (8-bit width GPIO0 - GPO7) on edge event on another GPIO pin to RAM using DMA?

Is 12 MB/s reachable when system clock = 96 MHz? 

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kaiyuewang
Contributor I

Hello, I am just trying to do the same thing as you. And I use the SCTimer match mode to send DMA trigger (in Burst Mode). It seems to me that the max frequency in this mode is about 10 MHz. 

Did you realize the transmission with a greater frequency? If yes, how?

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miduo
NXP Employee
NXP Employee

Hi,

Please let me know the part number you mentioned. Thanks.

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