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Bilal29

Nexys Video XADC

Question

1. How we can provide analog input to dedicated VP/VN. Only JXADC port given for auxiliary inputs (Four Inputs).

2. My XADC auxillary inputs is not working but on chip sensors are working fine. I am giving analog input in between 0 V to 1.0 V to JXADC (Aux input channel 0) from external Power supply but ADC is reading constant value.

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Hi @Bilal29,

VP and VN is connected to J18 and not JXADC as shown on page 9 of the schematic here.  J18 is to the right of the on board OLED on the Nexys Video.

best regards,

Jon

 

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