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====== Setting Up RCE Pixel Application ======

Following the setup instructions [[https://twiki.cern.ch/twiki/bin/view/Atlas/RCEGen3PixelApplication|here]]. Be sure to extract and install everything in exactly the same directories as listed below, because some scripts use hard-coded paths!

The pixel application has two parts - calibserver, which runs on the HSIO-2, and calibGui, which is run locally and used to interface with calibserver.

You don't need to edit /etc/hosts if your /etc/dhcp/dhcpd.conf file is set correctly. This automatically assigns IP addresses to external devices based on their MAC addresses. You can look at the leases created by DHCP in /var/lib/dhcpd/dhcpd.leases. This will tell you the IP address of the HSIO-2 board. You should be able to log on to the board using
<code>ssh root@<IP></code>
If you get an error "No route to host", this means you're using the wrong IP address.

Execute all the commands in this section as superuser:

	yum install cmake  libXpm libX11 libXext libSM libICE python-devel rpm-devel
	mkdir -p /sw/atlas
	chmod a+w /sw/atlas
	cd /sw/atlas
	git clone  https://:@gitlab.cern.ch:8443/rce/ayum.git
	cd /sw/atlas/ayum
	./configure.ayum

Enter the following information:

	AYUM package location: /sw/atlas/ayum
	AYUM software installation location: /sw/atlas
	AYUM RPM database location: [/sw/atlas/.rpmdb]
	AYUM cache location: [/sw/atlas/.yumcache]

Keep executing commands:

	cd /sw/atlas/ayum/src/rpmext
	make clean
	make
	cd ~/ayum
	./ayum install  -y LCG_81b_gcc_4.9.3_x86_64_slc6 gcc_4.9.3_x86_64-slc6 LCG_81b_ROOT_6.04.12_x86_64_slc6_gcc49_opt  Boost_1.59.0_python2.7_armv7l_archlinux_gcc52_opt_lcgcmt81b_armv7l_archlinux_gcc52_opt
	cd ~
	git clone https://:@gitlab.cern.ch:8443/rce/pixelrce.git
	ln -s ~/pixelrce ~/daq
	cd ~/daq/rce

Now you'll want to edit ./scripts/setup-gen3.sh. Add the following line before "source $LCG_INST_PATH/sw/lcg/contrib/gcc/4.9.3/x86_64-slc6/setup.sh": "source $LCG_INST_PATH/sw/lcg/ROOT/6.04.12-c016e/x86_64-slc6-gcc49-opt/bin/thisroot.sh".

	source ./scripts/setup-gen3.sh
	git checkout -b V1.1.0
	cd ~/daq/rce/build.slc6-rcf; make
	cd ~/daq/rce/build.arm-rcf; make
	cd ~/daq/rce/
	rsync -e 'ssh -l root' -rlptDv /sw/atlas/sw/lcg/LCG_81b/Boost/1.59.0_python2.7/armv7l-archlinux-gcc52-opt/lib 192.168.3.3:/root/pixelrce/ 
	rsync -rlptDv -e 'ssh -l root' build.arm-rcf/{bin,lib} 192.168.3.3:/root/pixelrce

You can ssh into the HSIO-2 to run calibserver. This is not necessary unless you want to see real-time outputs from the server.

	ssh root@192.168.3.21
	export PATH=/root/pixelrce/bin:$PATH; export LD_LIBRARY_PATH=/root/pixelrce/lib:$LD_LIBRARY_PATH
	calibserver

In another window, run calibGui on the local computer.

	cd ~/daq/rce
	source scripts/setup-gen3.sh
	calibGui

Use Inlink X+1, Outlink X+1, where the module is plugged into port AX. Use Rce 0.
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