Chamber electronics test bench

Valerio Bocci Rafael Nobrega, Davide Pinci (INFN sez. Roma)

Giovanni Carboni,Andre Massaferri,Roberto Messi, Emanuele Santovetti (INFN sez Roma II)

Spark+Input

Output LVDS

Dialog

Carioca Carioca

ServiceBoard

I2c_lvds+ctrl signals

CANbus

Carioca threshold,pulse,charge dac

Signal processed from carioca(Analog) and then from dialog (digital)

I2c lvds+pulse signal

Self Test of the Carioca-Dialog system(Using Dialog & Service Board facility)

• Only one conection (i2c_lvds)• The system can test :

board connectivity,carioca channel response,dialog and Carioca functionality

• The input and spark protection are tested using rate method to measure detector’s capacitance

• The LVDS output are not tested

PC

Valerio Bocci 2003

ACQ Board(INFN RomaII, LNF)

Start Stop

TST_PULSE (From SB)

Gate

GateBoard

We use the 24 bitsScaler to test theDialog Lvds Output

ACQ Board

8 8 8 8 8 8 8 8

Dialogs

V.Bocci Muon meeting 2006,Jan

Chamber

SBACQ Boards VME

USB CANbus

USB- VME interface

I2C line

I2C line

FE FE FE FE FE FE

FE FE FE FE FE FE

Chamber’s Electronics Validation

GateBoard

Strt Stp

Strt Stp

V.Bocci Muon meeting 2006,Jan

Inject N charge withDialog

Count N inside Dialog

Count N outsideusing ACQ

Noise method to check cardiac

Chamber connection(looking

chamber capacitance)

Chamber

FE

ACQ

SB

Chamber

FE

SB

Test 1 Test 2a) Test the i2c FE connectionb) Test FE LVDS output

a) Test the i2c FE connectionb) Test Chamber FE connectionc) Test FE performance

V.Bocci Muon meeting 2006,Jan

• CANBUS interface :Kvaser PCIcan Q (PCIcan 4HS) (CERN store)or Kvaser USB-CANBus (Kvaser)

• VME Crate (Any source)

• V1718 CAEN USB-VME interface (CAEN) http://www.caen.it/nuclear/product.php?mod=V1718

• Service Board (INFN Rome1)

• ECS cables SB->Cardiac (INFN Rome1,CERN)

Instrumentation (1/2)

V.Bocci Muon meeting 2006,Jan

• VME ACQ Board (INFN Rome2)

• 16x2 scotchflex ACQ input adapters (INFN Rome2)

• LVDS cables 8x2 scotchflex to 16x 2 scotchflex twisted (INFN Rome2)

• Gate Board (INFN Rome2)

• Windows XP Pro PC (USB2.0 & PCIslot) (any source)

• Barcode Reader (Datalogic Gryphon OK) (any source)

Instrumentation (2/2)

V.Bocci Muon meeting 2006,Jan

Cardiac Singnature

• The Cardiac board contains two Carioca• The Offset for each carioca channel is different• The 16x8bit value of the offset give a way to identify the cardiac.• We aspect: bar code-> cardiac signature is a biunivocal.

V.Bocci Muon meeting 2006,Jan

Test of the Chamber FE connection using Rate method

V.Bocci Muon meeting 2006,Jan

Chamber data production

Cardiac Data

CardiacBar Code

On Chamber Measuraments

Chamber Cardiac Data

Cardiac ID

On ChamberTest Program

Please check Ex. Gryphon datalogic bluetooth is OK (RM1)DATALOGIC DLC6190(RM2) NOK problems

Label aging Problem(glue and size)

V.Bocci Muon meeting 2006,Jan

Testbench Flow• Scan Chamber Barcode• Scan Cardiacs Barcode in given order • Camera File Chamber code+cardiacs code• Testbench program associate cardiacs with production

cardiacs database.• First injection test discover any swapped ecs cable lvds

cable • Test cardiac analog injection and test pattern• Cardiac offset scan channel signature discover any

mismatch cardiac barcode geo position of any cardiac• Noise method -> chamber capacitance ->short channel

or open channel• One file for each chamber

V.Bocci Muon meeting 2006,Jan

Test bench SoftwareLVDS line test

V.Bocci Muon meeting 2006,Jan

Testbench Status• Roma1 Cardiac Test program used as skeleton and

Adapted. OK• Insert the ACQ read function in the skeleton OK• Add automatic analisys using “root” library for rate

method analisys. OK• Add new functionality for easy use 99% done • System assembled in Rome2 OK• Gateboard prototype OK• Gateboard final PCB (gerber file to pcb company 2 weeks

ready)• The first pilot use in LNF in two weeks