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

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Baldhead
Posts: 437
Joined: Sun Mar 31, 2019 5:16 am

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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ESP_Sprite
Posts: 9594
Joined: Thu Nov 26, 2015 4:08 am

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

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

Not according to the TRM.
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GrettaOwens
Posts: 1
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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