diff --git a/L1Trigger/L1TCalorimeter/python/L1TCaloStage1_cff.py b/L1Trigger/L1TCalorimeter/python/L1TCaloStage1_cff.py
new file mode 100644
index 0000000000000..4e62a4f565354
--- /dev/null
+++ b/L1Trigger/L1TCalorimeter/python/L1TCaloStage1_cff.py
@@ -0,0 +1,18 @@
+import FWCore.ParameterSet.Config as cms
+#l1tStage1CaloParams_cfi.py
+#from L1Trigger.L1TCalorimeter.l1tCaloStage1Params_cfi import *
+from L1Trigger.L1TCalorimeter.l1tStage1CaloParams_cfi import *
+
+from L1Trigger.L1TCalorimeter.l1tCaloStage1Digis_cfi import *
+#from L1Trigger.L1TCalorimeter.l1tCaloStage2Layer1Digis_cfi import *
+
+#from L1Trigger.L1TCalorimeter.l1tCaloStage2Digis_cfi import *
+
+#content = cms.EDAnalyzer("EventContentAnalyzer")
+
+L1TCaloStage1 = cms.Sequence(
+    l1tCaloRCTToUpgradeConverter +
+    l1tCaloStage1Digis +
+    l1tPhysicalEtAdder +
+    l1tCaloUpgradeToGCTConverter
+)
diff --git a/L1Trigger/L1TCalorimeter/python/l1tCaloStage1Digis_cfi.py b/L1Trigger/L1TCalorimeter/python/l1tCaloStage1Digis_cfi.py
new file mode 100644
index 0000000000000..eb00137bd7dc3
--- /dev/null
+++ b/L1Trigger/L1TCalorimeter/python/l1tCaloStage1Digis_cfi.py
@@ -0,0 +1,29 @@
+import FWCore.ParameterSet.Config as cms
+
+l1tCaloRCTToUpgradeConverter = cms.EDProducer(
+    "l1t::L1TCaloRCTToUpgradeConverter",
+    regionTag = cms.InputTag("gctDigis"),
+    emTag = cms.InputTag("gctDigis"))
+
+l1tCaloStage1Digis = cms.EDProducer(
+    "l1t::Stage1Layer2Producer",
+    CaloRegions = cms.InputTag("rctLayer2Format"),
+    CaloEmCands = cms.InputTag("rctLayer2Format"),
+    FirmwareVersion = cms.uint32(2),  ## 1=HI algo, 2= pp algo
+    egRelativeJetIsolationCut = cms.double(0.5), ## eg isolation cut
+    tauRelativeJetIsolationCut = cms.double(1.), ## tau isolation cut
+    regionETCutForHT = cms.uint32(7),
+    regionETCutForMET = cms.uint32(0),
+    minGctEtaForSums = cms.int32(4),
+    maxGctEtaForSums = cms.int32(17)
+    )
+
+l1tPhysicalEtAdder = cms.EDProducer("l1t::PhysicalEtAdder",
+                                    InputCollection = cms.InputTag("Layer2HW")
+)
+
+l1tCaloUpgradeToGCTConverter = cms.EDProducer("l1t::L1TCaloUpgradeToGCTConverter",
+                                         InputCollection = cms.InputTag("Layer2Phys")
+)
+
+
diff --git a/L1Trigger/L1TCalorimeter/test/TTbarRelVal_Stage1Test.py b/L1Trigger/L1TCalorimeter/test/TTbarRelVal_Stage1Test.py
new file mode 100644
index 0000000000000..12a85625e1c04
--- /dev/null
+++ b/L1Trigger/L1TCalorimeter/test/TTbarRelVal_Stage1Test.py
@@ -0,0 +1,103 @@
+# Auto generated configuration file
+# using: 
+# Revision: 1.19 
+# Source: /local/reps/CMSSW/CMSSW/Configuration/Applications/python/ConfigBuilder.py,v 
+# with command line options: l1 -s L1 --pileup=NoPileUp --geometry DB --conditions=auto:startup -n 1 --no_exec --filein=/store/mc/Fall13dr/TT_Tune4C_13TeV-pythia8-tauola/GEN-SIM-RAW/tsg_PU40bx25_POSTLS162_V2-v1/00000/007939EF-8075-E311-B675-0025905938AA.root
+import FWCore.ParameterSet.Config as cms
+
+process = cms.Process('L1')
+
+# import of standard configurations
+process.load('Configuration.StandardSequences.Services_cff')
+process.load('SimGeneral.HepPDTESSource.pythiapdt_cfi')
+process.load('FWCore.MessageService.MessageLogger_cfi')
+process.load('Configuration.EventContent.EventContent_cff')
+process.load('SimGeneral.MixingModule.mixNoPU_cfi')
+process.load('Configuration.StandardSequences.GeometryRecoDB_cff')
+process.load('Configuration.StandardSequences.MagneticField_38T_cff')
+process.load('Configuration.StandardSequences.SimL1Emulator_cff')
+process.load('Configuration.StandardSequences.EndOfProcess_cff')
+process.load('Configuration.StandardSequences.FrontierConditions_GlobalTag_cff')
+
+process.maxEvents = cms.untracked.PSet(
+    input = cms.untracked.int32(10)
+)
+
+# Input source
+process.source = cms.Source("PoolSource",
+    secondaryFileNames = cms.untracked.vstring(),
+    fileNames = cms.untracked.vstring('/store/relval/CMSSW_7_1_0_pre2/RelValTTbar_13/GEN-SIM-DIGI-RAW-HLTDEBUG/POSTLS170_V3-v1/00000/20379CB0-E28E-E311-97BE-0026189438A7.root')
+)
+
+process.options = cms.untracked.PSet(
+
+)
+
+# Production Info
+process.configurationMetadata = cms.untracked.PSet(
+    version = cms.untracked.string('$Revision: 1.19 $'),
+    annotation = cms.untracked.string('l1 nevts:1'),
+    name = cms.untracked.string('Applications')
+)
+
+# Output definition
+
+process.RECOSIMoutput = cms.OutputModule("PoolOutputModule",
+    splitLevel = cms.untracked.int32(0),
+    eventAutoFlushCompressedSize = cms.untracked.int32(5242880),
+    outputCommands = cms.untracked.vstring("keep *"),#process.RECOSIMEventContent.outputCommands,
+    fileName = cms.untracked.string('L1_stage1.root'),
+    dataset = cms.untracked.PSet(
+        filterName = cms.untracked.string(''),
+        dataTier = cms.untracked.string('')
+    )
+)
+
+# Additional output definition
+
+# Other statements
+from Configuration.AlCa.GlobalTag import GlobalTag
+process.GlobalTag = GlobalTag(process.GlobalTag, 'auto:startup', '')
+
+# upgrade calo stage 2
+process.load('L1Trigger.L1TCalorimeter.L1TCaloStage1_cff')
+#process.load('L1Trigger.L1TCalorimeter.l1tCaloAnalyzer_cfi')
+
+# enable debug message logging for our modules
+process.MessageLogger = cms.Service(
+    "MessageLogger",
+    destinations   = cms.untracked.vstring(
+	'detailedInfo',
+	'critical'
+    ),
+    detailedInfo   = cms.untracked.PSet(
+	threshold  = cms.untracked.string('DEBUG') 
+    ),
+    debugModules = cms.untracked.vstring(
+	'l1tCaloStage1Digis'
+    )
+)
+
+# TTree output file
+process.load("CommonTools.UtilAlgos.TFileService_cfi")
+process.TFileService.fileName = cms.string('l1t_stage1.root')
+
+process.load('Configuration.StandardSequences.RawToDigi_cff')
+process.load('Configuration/StandardSequences/L1HwVal_cff')
+
+# bug fix for missing HCAL TPs in MC RAW
+#from SimCalorimetry.HcalTrigPrimProducers.hcaltpdigi_cff import HcalTPGCoderULUT
+#HcalTPGCoderULUT.LUTGenerationMode = cms.bool(True)
+#process.l1tCaloStage2Layer1Digis.hcalToken = cms.InputTag("valHcalTriggerPrimitiveDigis")
+
+# Path and EndPath definitions
+process.L1simulation_step = cms.Path(process.ecalDigis
+                                     +process.hcalDigis
+                                     +process.valHcalTriggerPrimitiveDigis
+                                     +process.L1TCaloStage1)
+process.RECOSIMoutput_step = cms.EndPath(process.RECOSIMoutput)
+
+# Schedule definition
+process.schedule = cms.Schedule(process.L1simulation_step,
+                                process.RECOSIMoutput_step)
+