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Enabling links and setting the superchunk factor

You can do this either using the felix UPS product in the dune-daq software or a custom build of the felix software suite provided by ATLAS TDAQ.

To use the UPS product, you can use these tools where you did run: 

dbt-workarea-env

In order to enable links, the corresponding registers need to be set: DECODING_LINK00_EGROUP0_CTRL_EPATH_ENA, where LINK marks the link identifier. In order to enable the 10 links on the card (5-5 on the 2 SLRs), do this:

echo Disabling every link on SLR 0...
for i in {00..11}; do flx-config -d 0 set DECODING_LINK${i}_EGROUP0_CTRL_EPATH_ENA=0; done;

echo Disabling every link on SLR 1...
for i in {00..11}; do flx-config -d 1 set DECODING_LINK${i}_EGROUP0_CTRL_EPATH_ENA=0; done;

echo Enable 5-5 links on the 2 SLRs
for i in {00..04}; do flx-config -d 0 set DECODING_LINK${i}_EGROUP0_CTRL_EPATH_ENA=1; done;
for i in {00..04}; do flx-config -d 1 set DECODING_LINK${i}_EGROUP0_CTRL_EPATH_ENA=1; done;
If two cards are installed in the host, repeat those operations also using the commandline options -d2 and -d3!

Be careful, as these register are SuperLogic Region (SLR) based! To change the register values for factor 12, for both SLRs' first 10 virtual links, run the following: 

for i in {00 11}; do flx-config -d 0 set SUPER_CHUNK_FACTOR_LINK_${i}=0x0c; done;
for i in {00 11}; do flx-config -d 1 set SUPER_CHUNK_FACTOR_LINK_${i}=0x0c; done;
If two cards are installed in the host, repeat those operations also using the commandline options -d2 and -d3!

and then rerun flx-config -d (0...3) list | grep SUPER to check all the values changed. The superchunk factor is changed to 0x0c as the readout software is prepared to receive chunks with an aggregation factor of 12: 

0x2de0 [RW 07:00]                 SUPER_CHUNK_FACTOR_LINK_00                0x0c  number of chunks glued together
0x2df0 [RW 07:00]                 SUPER_CHUNK_FACTOR_LINK_01                0x0c  number of chunks glued together
...

Last git commit to the markdown source of this page:

Author: glehmannmiotto

Date: Thu Jan 12 16:46:55 2023 +0100

If you see a problem with the documentation on this page, please file an Issue at https://github.com/DUNE-DAQ/flxlibs/issues