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garengllc2
Observer
Observer
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Registered: ‎09-18-2020

QSPI as a slave?

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I am investigating the AXI Quad SPI core and I do not understand something.  I was planning on dropping two of the cores into my design for my KC705 eval board.  I was going to set the two cores up in Quad mode, and I wanted one to be a master, and the other one to be a slave.  These two cores will be interfacing with an off-board device.  The master one seems straight-forward, and I am not too concerned with it.  The slave one is the one that has me perplexed.  There does not appear a way to tell the core to operate in slave mode, yet the datasheet for the core seems to imply that it can.

Am I missing something here?

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abommera
Xilinx Employee
Xilinx Employee
195 Views
Registered: ‎10-12-2018

The core supports slave mode only in standard SPI mode and supports master mode in dual or quad mode.

Here is below screenshot from PG153.

abommera_0-1616649219939.png

 

Thanks & Regards
Anil B
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abommera
Xilinx Employee
Xilinx Employee
196 Views
Registered: ‎10-12-2018

The core supports slave mode only in standard SPI mode and supports master mode in dual or quad mode.

Here is below screenshot from PG153.

abommera_0-1616649219939.png

 

Thanks & Regards
Anil B
-------------------------------------------------------------------------
Don’t forget to reply, kudo, and accept as solution.
-------------------------------------------------------------------------

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garengllc2
Observer
Observer
167 Views
Registered: ‎09-18-2020

Bingo, that answers it.  That is a shame, but it is what it is.  Are you aware of any 3rd party cores that does allow QSPI in slave mode?  Thanks.

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