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?
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
: