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All schematics for all of Berns designed PCBs can be found here.
Optoboard
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system support:
We collect support requests and general questions on our Mattermost channel Bern-Optoboard (invite link). Your contacts as of Aug. 2022 are Aaron O'Neill and Daniele del Santo.
Optoboard software for FELIX:
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If you do flx-info link you should see that respective link aligned. If you do flx-info podpower you should see something like this (if single Optoboard outside test-Optopanel is connected similarly):
| Code Block |
|---|
Optical power (Receive=RX or Transmit=TX) of channel in uW:
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|=========|=========|=========|=========|=========|=========|=========|=========|=========|=========|=========|=========|
1st TX | 983.30 | 986.10 | 892.10 | 970.00 | 937.50 | 1009.70 | 916.20 | 970.30 | 920.00 | 960.80 | 924.40 | 958.50 |
1st RX | 946.80 | 790.20 | 870.50 | 761.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
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In a currently ongoing effort by Bern PhD student Daniele dal Santo, the software will be integrated into the ITk demonstrator software itk-demo-sw.
Further tools:
flpgbtconf: FELIX low level tool to communicate with (and only with) the lpGBT master directly. flpgbtconf -h will give you help on the tool, here an example:
| Code Block |
|---|
flpgbtconf -1 -I 0x74 -G 0 -d 0 ULDATASOURCE5_DLG0DATASOURCE 0x1 # sets CMD from data to PRBS7 pattern on EPTX00 and EPTX02 |
-I 0x74 is the address for the lpGBT and the option -1 for the lpGBT version 1. Consult the lpGBT manual for all the various register names. There are many more options with FELIX, consult the FELIX user manual.
Test-Optopanel at SLAC:
The test-Optopanel houses one Optobox with 4 Optoboards. It has a twinax inlet (round) and a fibre outlet (rectangle). The Optobox is mounted on a cooling plate with two 8 mm pipes. The
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