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nuc_five
Observer
Observer
8,320 Views
Registered: ‎01-11-2016

about this warnning When using EMIO pins for SPI_0 tie SSIN High in the PL bitstream

I want to use spi_0 interface and make spi_0 EMIO,but vivado tells me a warnning,I don't known the warning meanning

2 Replies
pratham
Scholar
Scholar
8,304 Views
Registered: ‎06-05-2013

@nuc_five This is important when using EMIO pins for SPI.

 

Warning meaning:

When using EMIO pins, tie SSIN High in the PL bitstream. Ensure that the PS–PL voltage level shifters are enabled, and that the PL is powered and configured. Otherwise the SPI controller will not function properly.

 

Make sure in your bd you tie SPI0_SS_I pin to constant one.

-Pratham

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nuc_five
Observer
Observer
7,513 Views
Registered: ‎01-11-2016

I connected spi_0_ss_i with one but this warnning didn't disappear

QQ图片20160411140201.png
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