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VIVADO bidirectional make us external ports

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Contributor
Posts: 43
Registered: ‎01-07-2014
Accepted Solution

VIVADO bidirectional make us external ports

I am trying to connecto AXI IIC to external port, but after sythesis VIVADO do not automatycaly generated I2C bidirectional port over iobuf like in mentioned in AR# 56858.

 

How to merge Tri State pins in to INOUT external pin in VIVADO? 

 

 

i2c problem2.PNG
i2c problem.PNG

Accepted Solutions
Contributor
Posts: 43
Registered: ‎01-07-2014

Re: VIVADO bidirectional make us external ports

Yes I saw it, but why vivado do not synthesizing wrapped HDL, but synthesizing block desing?

Need it manually set wrapped HDL set as top? 

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Teacher
Posts: 4,979
Registered: ‎03-31-2012

Re: VIVADO bidirectional make us external ports

@minstai the iobufs are instantiated in the wrapper generated by vivado. Review it to see how the scl & sda pins are implemented to drive the 3 wires.

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Contributor
Posts: 43
Registered: ‎01-07-2014

Re: VIVADO bidirectional make us external ports

Yes I saw it, but why vivado do not synthesizing wrapped HDL, but synthesizing block desing?

Need it manually set wrapped HDL set as top?