SPI Flash write using DMA

[vishal]

Hi,

I have camera interfaced on GPIOs of nRF52832.. I am reading image data at the rate 80KHz. Is it possible to write the data to SPI Flash (Slave) by DMA or by any other way such that I won't need to buffer much image data before write it to the flash ? Will that be possible at such higher rate ?

[vishal]

Hi, Thanks. I read the Data lines of the Camera with sync of its clocks, HREF and VSYNC, and what Data I get, I store that in the internal RAM.. At present due to the limited memory, my image resolution is also limited.. so what I want to do is - Read Image Data --> Store in internal Ring Buffer --> Read from Ring Buffer --> Write to SPI Flash..

So far I could not find the appropriate example how I can do that.. All I found is this macro
"define SPI0_USE_EASY_DMA 1"

Can you give me any reference from where I can understand how I can configure EasyDMA to Read from buffer and Write data to Flash ?