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First Tests of a GTL-Prototype-Card using XDAQ
S. Kostner, J. Strauss and A. Taurok (Hephy, Vienna)with help from J. Gutleber (CERN)
Environment
● Linux PC running XDAQ● National VME Interface● VME Crate● GTL-Conversion-Card (6U)
Environment for test of GTL-Conversion Card
GT
L-C
onve
rsio
n C
ard
VM
E-M
XI-
2
MXI Cable
VME Crate
Linux PC running XDAQequipped with PCI-MXI Card
VME-MXI-2 Crate Controller
VME-Bus
GTL-Conversion-Card (6U)
● VME Connector● ALTERA VME Chip● 5 XILINX Conversion Chips (which have to be
configured via VME)
VME Connector
to Backplane
Altera VME Chip
ProgrammableXilinxChips
Configuration Procedure
Only the ALTERA Chip understands VME.
XILINX Chips receive commands from, and are configured by the ALTERA Chip.
The configuration file has to be written bit by bit to a program register in the ALTERA Chip.
Other Components
VME crate is connected to a Linux PC via a crate controller and a PCI-MXI-2 Board (National Instruments).
A National Instruments - VXI/VISA driver is used to access the PCI-MXI Board.
VME Crate
VME-MXI-2CrateControler
GTL-ConversionCard
C++ Hardware Access Library (HAL)...is included in XDAQ package
● VMEDevice()● MXI2x86LinuxBusAdapter()● NIVXI driver● PCI MXI Card
(shown in Figure 1 of HAL Documentation)● Simple read and write commands are available
– Note: HAL can be used without XDAQ
HAL
Source: HAL Documentation
(Linux NIVXI driver)
(MXI2x86LinuxBusAdapter)
VMEDevice
(XDAQ plugin)
XDAQ Framework
● Process running on PC with hardware connection (described above)
● The XDAQ application is realized as plugin which is loaded into XDAQ at runtime (only the plugin has to be compiled).
● XDAQ and its plugin is controlled by the tool XDAQWIN which sends messages to XDAQ via http.
● The configuration of XDAQWIN is specified by the user which has to provide a XML file.
XDAQ Framework
XdaqWin
GT
L-C
onve
rsio
n
Con
trol
ler
VME Crate
VME
HTTP
VXIXDAQ
executive
XDAQ with running user-plugin
XML
Time flow of a xdaqWin command
XDAQWin XDAQ executive
configureuser plugin
configure(){
... //configure HW}
click "configure"
ready
2
5
3
1
4
next command
Conclusions
● A simple configuration example was realized using XDAQ and HAL.
● Code will be made available (by J.Gutleber);
it is a realistic example for a first contact with XDAQ.