sbndaq - Bug #23554: Triggers but no fragments
BNL WIBs sending data not properly formatted
There seems to be an issue with the optical communication with WIB's and TPC.
Ideally there should be a check in the code to make sure the data being send along is OK. Granted, I have no idea if this is feasible.
Besides troubleshooting the cause for this, please also make an entry in the wiki to document the cause and solution.
This is related to issue #23554
Feel free to change assignee.
#3 Updated by Mayank Tripathi 4 months ago
- % Done changed from 0 to 80
Problems: 1) BNL WIBs not sending Data.
2)BNL WIBs sending data but not properly formatted.
Cause and solution for 1) The PTB not being tight enough on either the PTC or the WIB caused the BNL WIB to stop sending data. After trying to snug them in, the data was received fine.
Cause and solution for 2) Even when the data is received some channels showed
0xBAD, which is a holdover from WIB testing that doesn't affect the data and only is in WIB channel ID mode. There were some other unexpected elements, like in FEMB ID
0x0007 we could see
0x0038. Jack expects a bit of weirdness in the channel ID mode with this FW. This will most likely be fixed in the next firmware version.