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Newbie paulhuntley
Newbie
1,003 Views
Registered: ‎08-02-2017

xadc gain / offset all zeros in sim

I have configured an xadc ip to continuous mode, single input (VP/VN), all alarms off, calibration selected.

 

I seem to be getting good data out of the xadc at address 0x03 of the register file, via the drp port.

 

I read the converted value, but then I want to read the gain and offset at address 0x09 and 0x0a, and apply them to the converted value in downstream logic.

 

I am getting consistent all zero's out of these two register addresses. Is there anyway to simulate gain and offset corrections?

 

Thanks in advance!

 

--Paul

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3 Replies
Newbie paulhuntley
Newbie
938 Views
Registered: ‎08-02-2017

Re: xadc gain / offset all zeros in sim

Is there anyone here with experience in this area that has gotten non-zero values for gain and offset in simulation?

 

Please reply...

 

Thanks in advance,

--Paul

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Newbie paulhuntley
Newbie
877 Views
Registered: ‎08-02-2017

Re: xadc gain / offset all zeros in sim

Just to be clear, this test is a simulation running in Cadence, using Vivado for the Kintex-7 board.

 

I am able to get reasonable data out of the the register file at address 0x -- this data is the conversion for the primary input ports VP/VN. I am expecting to see offset and gain corrections for the ADC at address 09 and 0a. These values remain zero through out the simulation.

 

Regards,

--Paul

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Newbie paulhuntley
Newbie
845 Views
Registered: ‎08-02-2017

Re: xadc gain / offset all zeros in sim

Is there anyone here with simulation experience on the XADC IP on a Kintex-7 that could answer a question or two?

 

Thanks in advance...

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