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Basti3n's avatar
Basti3n
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5 years ago

ARRIA 10 temperature sensor: 25 Celsius degree offset

We have some issue at work with a couple of ARRIA 10 FPGA temperature sensors reporting the wrong temperature value. It seems to always have an offset of around 25 degrees, compared to another on-boa...
Ash_R_Altera's avatar
Ash_R_Altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

Can you please elaborate?

Are you using Internal TSD + Temperature sensor IP or External TSD?

What do you mean by another on-board sensor? How is it connected to the FPGA?


Regards


Basti3n's avatar
Basti3n
Icon for New Contributor rankNew Contributor
5 years ago

Hi,

Thanks for the reply and sorry for the lack of details. We are using both the internal TSD with sensor IP and the external TSD connected to a sensor chip. We see a difference between the 2 values of ~27 Celsius degrees. On all the other boards produced except the two I mentioned, the difference is a couple of degrees.

These 2 values are basically checked on each card at production time, and since they know differ and do not match the expected, we are trying to find out if this could be something wrong with the FPGA itself.

Regards