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Observer
Observer
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Registered: ‎02-15-2019

Temperature monitoring JTAG

Hello,

I need to monitor temperature on a ZYNQ-7000 using JTAG through Hardware Manager;

I can read a coherent value during boot process (around 50°C) but once the Linux is started the only value read is -273.1°C. Is there a specific configuration I need to do in Linux configuration files to use XADC ?

When the Zynq Module is configured whitout Linux OS but with a simple "helloworld" SDK application that works fine (using same bitstream).

Thanks,

Antonin

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Moderator
Moderator
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Registered: ‎02-09-2017

Re: Temperature monitoring JTAG

Hi @adalaine,

 

Please take a look at the following document. It has a descritpion on how to read the XADC registers from Linux:

https://www.xilinx.com/support/documentation/application_notes/xapp1172_zynq_ps_xadc.pdf

Thanks,

 

Andre Guerrero

Product Applications Engineer

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Observer
Observer
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Registered: ‎02-15-2019

Re: Temperature monitoring JTAG

 

Hi @anunesgu 

Thanks, but this document explain how to read XADC registers from Linux.

In my case, I would like to monitor Temperature using external JTAG Port and Vivado Hardware Manager. Without specific API.

Antonin

 

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