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Adventurer
Adventurer
2,227 Views
Registered: ‎04-10-2016

After starting the Linux system, JTAG cannot read the xadc data

After the Linux system is started, the JTAG cannot read the xadc data. When the Linnux is not started, the Vivado can display the temperature and voltage normally.

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Scholar rfs613
Scholar
2,203 Views
Registered: ‎05-28-2013

Re: After starting the Linux system, JTAG cannot read the xadc data

This is probably due to the XADC interface arbiter. Please see section 30.2.1 and 30.2.2 in the Zynq-7000 Technical Reference Manual.

You can try changing the configuration using:
devmem 0xF8007100 ( you likely want to turn off Bit 31).
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