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Visitor itaysa1
Visitor
97 Views
Registered: ‎10-21-2018

ZYNQ 7030: QSPI Maximum Operating Frequency (Feedback Mode Enabled)

Hi Team,

Could the QSPI performance (i.e. operating frequency) be improved if using the QSPI’s Feedback Mode Enabled (Boot Mode Pins) while the QSPI is placed far from the ZYNQ?

Does the QSPI chip require any specific characteristic for operating in Feedback mode?

Pls. note of some of the bus properties:

  1. Distance from ZYNQ is ~5 inch (via flex-rigid)
  2. QSPI operating frequency used is 50 MHz
  3. QSPI bus voltage is 3.3V
  4. The ZYNQ is connected to 2xQSPI chips
  5. Using Spansion's S25FL256SAGBHI200

Thanks,

Itay

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1 Reply
Voyager
Voyager
67 Views
Registered: ‎02-01-2013

Re: ZYNQ 7030: QSPI Maximum Operating Frequency (Feedback Mode Enabled)

 

Have you read this section?

2019-09-22_19-20-24.jpg

-Joe G.

 

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