# Presentation: 703919

## Level 2 CalorimeterandLevel 2 Isolation TriggerStatus Report

- Monica Tecchio
- University of Michigan
- Trigger Commissioning
- Workshop

- Monica Tecchio

- Nov. 5, 98

## Calorimeter trigger Overview

- DIRAC

- ADMEM

- XTRP

- AUX_DIRAC

- CRATESUM

- PREFRED

- DCAS

- LOCOS

- CLIQUE

- CLIST

**To Lv2**
**  ****crate**

**To Lv1**
** ****crate**

- ISO-CLIQUE

- ISO-CLIST

- ISO-PICK

**To L2 **
** ****crate**

-  **PMT**
**signals**

-   **L1**
**tracks**

- Monica Tecchio

- Nov. 5, 98

## L2CAL Hardware Status

- DCAS:  72 installed in B0 + 8 spare.
- DCAS_TRANS: 36 installed in B0 + 8 spares.
- LOCOS: 10 production boards will arrive from
-                 ADCO next week (It is true. Myron saw them!).
- CLIQUE: 3 production boards assembled  +
-                  1 to be done in the next  month.

- Monica Tecchio

- Nov. 5, 98

## L2CAL Hardware Status

- _DCAS known problems_
- 1)VME hangs at power-up:
- good news: already detected and solved in D0 boards which use same VME interface (Cypress ‘960/964 chipset).
- bad news: full fix requires lifting of pins in fine pitch component.
- We have implemented a partial (easy!) fix on 7 boards. We will test it here tomorrow and see if it solves/improves the situation.
- 2) B0 counter mismatch
- Confusing at the moment. There is a known problems with some chips having bad solder joints which was detected in Michigan.
- Some boards in B0 showed occasional B0 counter mismatchs in the past detected by Carla’s problem. No reports of such problems for a while (checking disabled??).
- Last week change of the Clock Module seemed to exacerbate the problem but “almost” gone away now. Pedro has a fix for DIRAC.

- Monica Tecchio

- Nov. 5, 98

## L2CAL Hardware Status

- _LOCOS known problems_
- 1) Need fix for board automatic VME reset at power-up.
- 2) Minimal changes between prototype (working, in B0) and production version.
- Expected in B0 for Sept. 20.
- _CLIQUE known problems_
- 1) Minimal functional changes between prototype (working in B0) and production.
- 2) Still debugging clustering State Machine...need LOCOS to do a thorough job
- Full system expected in B0 for Sept. 20.
- Timing tests in May using LOCOS/CLIQUE prototype gave:
- 1.7 s to fully process one cluster in one pass.
- 7 s to fully process one event with 1 high pT electron and 5 jets.

- Monica Tecchio

- Nov. 5, 98

## L2CAL Software Status

- RC software esists for DCAS, not yet for LOCOS (ID Prom only) and CLIQUE (ID PROM and clustering algorithm version). Will be done when production boards arrive in B0.
- TRIGSIM Simulation done. Calorimeter DAQ readout tested. Clustering simulation is waiting for the hardware. Must define TRIGMON variables most useful for finding hot/dead towers, triggering efficiencies,....
- Top 2 goals for Commissioning Run:
- 1) if full system works
- 2) if full system works well!

- Monica Tecchio

- Nov. 5, 98

## Calorimeter Trigger Cable Tester

- Heather Ray has been working on an automated test to check ADMEM  DIRAC  DCAS trigger cable continuity.
- Use Diagnostic FIFO/FRAM in ADMEM to send out known patterns of data (walking bit 1, alternating 0’s and 1’s) for a _single_ or _multiple_ cables. Will _not_ interfere with ET weight look-up table.
- RC integration done for ADMEM initialization in a special calibration run mode.
- Working on L1A timing/synchronization so to test all of channels with a single FIFO load  need to add extra functionality to RC to simulate existing TS features.

- Monica Tecchio

- Nov. 5, 98

## L2ISO Hardware Status

- ISOLIST:  1 needed
-                   2 stuffed and working.
- ISOCLIQUE:  1 needed
-                         2 stuffed
-                         1 tested and working.
- ISOPICKS:  6 needed
-                      5 stuffed
-                      1 needs a part (delay) due last  week
-                      2 tested and working.
- ISO TERMINATION BOARDS:
-                    7 needed (but system works OK without)
-                    Artworks sent out this week.
- If delay chip comes in next week, system should be ready and complete by Sept. 15.

- Monica Tecchio

- Nov. 5, 98

## L2ISO Hardware Status

- Integration tests with L2CAL and Alpha board still under way...
- Main known problem  The queueing of seeds from the CLIQUE board looks fine on the scope but data from ISOLIST shows that many of those seeds are lost.
-     Probably simple to fix once it can be recreated at ANL.

- Monica Tecchio

- Nov. 5, 98

## L2ISO Software Status

- RC Control software does not exist (needed? No VME on isolation boards for what I know...)
- TRIGSIM simulation existed as part of the RUN2TRS package. Don’t know if imported in AC++ yet.

- Monica Tecchio

- Nov. 5, 98