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Triplet module fails LP test, no LP_EN signal

Triplet module fails LP measurement during run-full-qc due to LP mode not enabled

v1.1 and v2 R0 triplet modules failed LP test (module not switching to LP). To investigate it, we connected an oscilloscope to the LP_en pins of the adapter card. No AC signal during LP test. If use bin/switch LMP on, the signal appears and the LP test successful. It also works with bin/switch LMP on -e 4 and bin/switch LMP on -e 15.

On the adapter card, LP_EN is on the third DP for linear and ring triplets. Perhaps, making LP_en to broadcast to all lanes (as before?) for triplets would help?

image

qct 2.6.0, qcdbt 2.7.2, YARR SW 1.5.5, YARR FW (Trenz TEF1001_R2) 1.5.0

The results of two LP tests from run-full-qc, normal and with LP forced by bin/switch LMP on:

output_LP_failed.log

20UPIM02202159_LP_failed.json

20UPIM02202159_switchLPM_on.json

output_LP_switchLPM_on.log image image