Esp32-s2 flash to ram dma and flash to peripheral dma

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Baldhead
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Location: Brazil

Esp32-s2 flash to ram dma and flash to peripheral dma

Postby Baldhead » Sat Mar 20, 2021 6:33 pm

Hi,

I would like to know if is possible a dma transfer from flash memory to ram memory or flash memory to peripheral in esp32-s2.

Thank's.
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Sprite
Espressif staff
Espressif staff
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Joined: Thu Nov 26, 2015 4:08 am

Re: Esp32-s2 flash to ram dma and flash to peripheral dma

Postby Sprite » Mon Mar 22, 2021 3:16 am

Not according to the TRM.
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GrettaOwens
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Joined: Thu Mar 25, 2021 6:38 am

Re: Esp32-s2 flash to ram dma and flash to peripheral dma

Postby GrettaOwens » Thu Mar 25, 2021 6:50 am

I tried one time and can tell you that no, you cannot use DMA auto request mode for RAM to inner flash, since it needs to
get DMA essential mode and runs related functions in RAM if needed.

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