Slow-control communication issue with the OH FPGA on GE2/1
Sharing this not to lose track of it...
After updating the OH firmware for the GE2/1 demonstrator to release v5.0.0-31-g80f2a9b
, the slow-control communications happened to be impossible for 2 of the 4 OHs. OH0 and OH2 were perfectly working while OH1 and OH3 were not. Reverting to release v5.0.0
"resolved" the problem.
At the moment, it is unclear what is happening and very few debugging registers are available in the back-end firmware. Any idea how to investigate further is welcome.