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- LinkData: 224 bits (need to check what is contained here)
- EgroupGB1Data_dbg[i]: 36-bits. Bits 33-35 are added by the gearbox: bit 35 indicates of the header is valid and bits 33-34 are the header (should be 01 if all is well). Bit 32 indicates if the data is valid.
- LinkAligned: a single bit that indicates the alignment of the optical signal between Felix and optoboard
- DecoderAligned_ila: should be 01 if uplink is aligned
- EgroupUnscrData_dbg[0]: if you see values like 87*fffff then the UPLINK polarity is inverted (it should be d78100000)
Running Remotely with FastX
FastX can be used to connect into the SLAC network for low-latency communication with nodes in the DAQ network. Information installing FastX can be found on the FastX Confluence documentation.
After installation, you can start Terminal sessions to steer the FELIX/optoboard/YARR instances. From the bastion host, run:
| Code Block |
|---|
ssh -L8081:raspi_b84_lab_felix2:8081 rddev111 |
And connect to a browser in FastX desktop to localhost:8081. From another tab, connect to http://atlascr.slac.stanford.edu:3000 and login to Grafana with
user: admin
pwd: AtlasItkAdmin
You can also open terminal windows in the FastX browser so that they stay alive when you close FastX.
Some Useful Links
- Optoboard System Documentation
- FELIX JIRA (Oct/22) on optoboard + ITkPix readout setup
- CERN mattermost Bern-Optoboard channel
- Talk (Dec/9/2022) by Angira Rastogi on Optoboard-FELIX setup at LBNL
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