LX2080

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LX2080

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YY2410
Contributor III

After the LX2080 processor operates for a period of time in a high-temperature environment, the on-board temperature sensor reads 86°C. Upon power cycling, printing freezes at the message "Fixed DDR on board", and the serial port becomes unresponsive.

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June_Lu
NXP TechSupport
NXP TechSupport

 "on-board temperature sensor reads 86°C", is it Tj or on board sensor used to test the board temperature?

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June_Lu
NXP TechSupport
NXP TechSupport

Please validate the DDR on the high-temperature environment with QCVS DDR to confirm DDR works well.

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YY2410
Contributor III

Thank you for your reply. Only one board in this batch has this issue. The problem reproduces after full power cycle, but rebooting via the kernel does not trigger the fault. We are unable to run verification tools in high-temperature environments, and the board functions normally at room temperature.@June_Lu

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%3CLINGO-SUB%20id%3D%22lingo-sub-2389422%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3ELX2080%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2389422%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EAfter%20the%20LX2080%20processor%20operates%20for%20a%20period%20of%20time%20in%20a%20high-temperature%20environment%2C%20the%20on-board%20temperature%20sensor%20reads%2086%C2%B0C.%20Upon%20power%20cycling%2C%20printing%20freezes%20at%20the%20message%20%22Fixed%20DDR%20on%20board%22%2C%20and%20the%20serial%20port%20becomes%20unresponsive.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2389647%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20LX2080%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2389647%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3EThank%20you%20for%20your%20reply.%20Only%20one%20board%20in%20this%20batch%20has%20this%20issue.%20The%20problem%20reproduces%20after%20full%20power%20cycle%2C%20but%20rebooting%20via%20the%20kernel%20does%20not%20trigger%20the%20fault.%20We%20are%20unable%20to%20run%20verification%20tools%20in%20high-temperature%20environments%2C%20and%20the%20board%20functions%20normally%20at%20room%20temperature.%40%3CA%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F204495%22%20target%3D%22_blank%22%3E%3CSPAN%20class%3D%22%22%3EJune_Lu%3C%2FSPAN%3E%3C%2FA%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2389636%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20LX2080%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2389636%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%20style%3D%22margin%3A%200in%3B%20font-family%3A%20Calibri%3B%20font-size%3A%2011.0pt%3B%22%20lang%3D%22en-US%22%3EPlease%20validate%20the%20DDR%20on%20the%20high-temperature%20environment%20with%20QCVS%20DDR%20to%20confirm%20DDR%20works%20well.%3C%2FP%3E%0A%3CP%20style%3D%22margin%3A%200in%3B%20font-family%3A%20Calibri%3B%20font-size%3A%2011.0pt%3B%22%20lang%3D%22en-US%22%3EThanks%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2391618%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20LX2080%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2391618%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%26nbsp%3B%22on-board%20temperature%20sensor%20reads%2086%C2%B0C%22%2C%20is%20it%20Tj%20or%20on%20board%20sensor%20used%20to%20test%20the%20board%20temperature%3F%3C%2FP%3E%0A%3CP%3EThanks%3C%2FP%3E%3C%2FLINGO-BODY%3E