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arashr
Explorer
Explorer
1,213 Views
Registered: ‎02-06-2018

Driving a single pin high

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Hi, 

 

This might be a simple question, I would be grateful if you could help me. I'm using Block design, my question is how can I drive a FPGA pin high? This pin shouldn't be connected to anything. according to the documentation it should just be driven high. 

 

Thanks

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zyanwu
Observer
Observer
1,453 Views
Registered: ‎12-14-2013

If I understand correctly you want to drive a pin that's physically on the FPGA to high?

 

For that you can use an IP called "Constant", make its output external and apply a physical constraint to that pin so that it matches the pin you'd like to drive high

 

const.png

 

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zyanwu
Observer
Observer
1,454 Views
Registered: ‎12-14-2013

If I understand correctly you want to drive a pin that's physically on the FPGA to high?

 

For that you can use an IP called "Constant", make its output external and apply a physical constraint to that pin so that it matches the pin you'd like to drive high

 

const.png

 

View solution in original post

arashr
Explorer
Explorer
1,195 Views
Registered: ‎02-06-2018

Awesome! Thanks! 

 

And yes, I'm going to fulfill this requirement:

 

FPGA pin AL25 LVCMOS18 net IIC_MUX_RESET_B must be driven High to enable I²C bus transactions with the devices connected to U28 and U80.

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