ATCA Timing Crossbar Checkout

ATCA Timing Crossbar Checkout Procedure

Set Timing to Backplane & SC

Start the ATCA LLRF GUI.  Here, we use IOC SIOC:B15:RF23 as an example.  Make changes as needed to invoke the tool for the correct IOC.

skoufis@lcls-dev3  $ pydm -m "DEVICE=SIOC:B15:RF23:0,LOCA=B15,IOC_UNIT=RF23,INST=0" /afs/slac/g/controls/development/users/dnajjar/ATCA_PyDM_Screens/atcaLLRF.py

Choose the Timing tab from this below.

Then, select BP (for backplane) and SC (for Super-Conducting timing mode).

Once that's done, the system buffers should be operational and acquiring at the pre-determined frequency.  Confirm with camonitor or caget.

Acquire BSA Manually (User Buffers)

Invoke the appropriate TPG GUI for the test station of interest.  Here, we use the TPG084 as an example.

skoufis@lcls-dev3  $ cd /afs/slac/g/lcls/epics/iocCommon/sioc-b015-ts01/iocSpecificRelease/tpgApp/srcDisplay
skoufis@lcls-dev3  $ ./tpg84_screen 

Select the user buffer of interest.  For demonstration purposes, we select user buffer 21.

Enter settings, such as number of samples, rate mode, fixed rate value, etc.  Then press ON to start acquiring.

Confirm with camonitor or caget that the corresponding  PVs are updated with the acquired samples.