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Observer sridevi123
Observer
530 Views
Registered: ‎02-20-2015

Zynq connect PS SPI peripheral through EMIO with external device

Hi

I have connected PS SPI to external device(Ad9361) through EMIO.

I am using Vivado 2016.1  and PicoZed SDR SOM Z7035/AD9361.

I am not able to read AD9361Product ID I am reading 0xFF.

 

I read in TRM when using EMIO for SPI "You must enable the PS- PL level shifters. I am not sure where to do it. Please guide me and please let me know if there is any other configuration I have to do in PL. 

 

The block diagram of SPI PS-PL connection is shown in attachment.

 

PS-PL_SPI.png
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1 Reply
Adventurer
Adventurer
240 Views
Registered: ‎06-22-2018

Re: Zynq connect PS SPI peripheral through EMIO with external device

I encountered this prolemb too, all data read back are just "0xFF".  Have you solved your problem?

BTW: It seems the level shifter is enabled automatically by debugger script "ps7_init.tcl" if you run code in SDK, in debug mode. 

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