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Participant zhuangyong
Participant
539 Views
Registered: ‎04-27-2018

Can I write the data to QSPI with DMA on zcu102 board

Dears

 

Since I refer to Ch.24 of the ug1085-zynq-ultrascale-trm.pdf,

it seems that we can read date from QSPI controller with DMA mode,

but  could not find how to write the date with DAM mode,

could you tell me about it.
 
On the other hand,
I refer to the QSPI driver of xilinx-linux  too,
write date with DMA mode handling has not been implemented.
 
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2 Replies
508 Views
Registered: ‎04-20-2017

Re: Can I write the data to QSPI with DMA on zcu102 board

Just wondering why do you need dma write on the flash?

You are aware that most qspi flash chips are not made for excessive writing... In case you want to write that much to them that you need dma to do that, chances are you won't be happy too long with it...
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Participant zhuangyong
Participant
485 Views
Registered: ‎04-27-2018

Re: Can I write the data to QSPI with DMA on zcu102 board

Hi  

 

Thank you

 

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