Question

Concerning "Nexys 4 Artix-7 FPGA Trainer Board"

We are using an FPGA filter project using the Nexys 4 model. Referring to the nexys4 schematic document (pdf file found on https://reference.digilentinc.com/_media/nexys:nexys4:nexys4_sch.pdf), on the last page (page 11), it says the resistance value is 0 but in fact it has a finite resistance. We would like to know a precise value for the surface mount resistor R254. Is this value different from one board to another?
 

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Hello,

R254 is a 0 ohm resistance. you can find it on bottom of the board. See picture attached. It is true though, that it has a tolerance of few miliOhms. They are not different from one board to another.

Best regards,

Bianca

R254.jpg

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