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Visitor
Visitor
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Registered: ‎08-08-2019

Zynq 7000 cannot find JTAG while booting from QSPI

Hi

I cannot detect the JTAG interface while booting from QSPI(not booting successfully). I used my oscillograph to observe the TMS, TCK, TDI, TDO signals, they performed normally. When I change the booting MIO pins from QSPI mod to JTAG mod, JTAG interface can be detected. My question is: why can't I detect JTAG in QSPI mod, even if it failed booting from QSPI?

BW

GE

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Moderator
Moderator
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Registered: ‎01-16-2013

Hi @zhaoge9292 

Always ask query in specific board related to the skillset. Most of the topic/skillset experts generally looks for specific boards and then you may not get the expected answer in time.

Also please do not create multiple threads for same query. This way you can track all the response and people who are trying to help should know what suggestions were already provided by other users.

https://forums.xilinx.com/t5/Timing-Analysis/zynq-7000-cannot-detect-JTAG-while-booting-from-QSPI/td-p/1020578

I am moving this another post into correct forum.

Thanks,
Yash

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