V1495

The Mod. V1495 is a VME 6U board, 1U wide, suitable for various digital Gate/Trigger/Translator/Buffer/Test applications, which can be directly customised by the User, and whose management is handled by two FPGA. The first one is the FPGA “Bridge”, used for the VME interface and for the connection between the VME and the 2nd FPGA (FPGA “User”) through a proprietary local bus. The FPGA “Bridge” manages also the programming via VME of the FPGA “User”.
The FPGA “User” (Cyclone EP1C20) manages the front panel I/O channels and is substantially an empty FPGA. It is available to be programmed by the User according to the desired logic function. The I/O channel digital interface is composed by four sections placed on the motherboard. The channel interface can be freely expanded by adding up to three independent mezzanine boards, choosing between the five available types.

• A395A 32 LVDS/ECL/PECL input channels
• A395B 32 LVDS output channels
• A395C 32 ECL output channels
• A395D 8 NIM/TTL input/output channels
• A395E 8 Analog output 16bit channels NEW!

Therefore, the Mod. V1495 can achieve a maximum number of 194 I/O channels.
A Mounting Option is necessary in order to install three A395C on the V1495 (see Ordering Options).
The FPGA “User” can be programmed “on the fly” via VME, without any external hardware tools, without disconnecting the board from the set up, and without resetting it or turning the crate off. A flash memory on the board stores the programming file, which can be loaded to the FPGA “User” at any moment. Four (independent, digital, programmable, asynchronous, chainable) timers, are available for Gate/Trigger applications.
The unit is supported by some free “FPGA demo firmwares”, but custom applications can be developed as well.
The unit is supported by the following firmwares:

• Five free “User FPGA Demo firmwares”
• Multievent scaler firmware (Mod. FW1495SC )

FW1495SC is a FPGA firmware that allows to use the Mod. V1495 as a Multievent latching scaler housing up to 128 independent counting channels (this maximum number of channels is achieved if the V1495 is expanded with two A395A boards).
The Mod. V1495 has been developed in the framework of the european project EURITRACK, which belongs to the Sixth Framework Programme (FP6).