10. Roma Release

Release Name:Roma, Italy
Release Date:November 22, 2002

Table 20. Release Info

PackageVersionSourceBinaryDocs
GNATV1-0-15srcbingnat, xbrd
GTEMV1-2-0srcbindoc
GAEMV1-1-0srcbindoc
GGLTV1-2-1srcbindoc
EVUTV1-1-8srcbindoc
CTSTV0-0-15srcbinnone

Table 21. Package Versions

10.1. New In This Release

This release combines several new features, including:

10.1.1. Driver Patch Level

The DriverInfo structure was updated to include a patch level field. This allows for differentiating between library versions that only have very minor differences.

Currently the GTEM library uses the patch level to distinguish between three versions of the library that have very minor changes for particular sub-system needs. The patch levels for GTEM are:

  • 0 – Baseline GTEM, libgtem.o.

  • 1 – Custom GTEM for NRL to test GCRC designs, libgtem_nrl.o

  • 2 – Custom GTEM for TKR to test GTRC designs, libgtem_tkrV5.o

10.1.2. New Event Format

The format of the event data buffer returned to the event handler callback routine has changed somewhat in this release. The event format follows that outlined in LAT cPCI Communication Board, sect. 5.1.

The event format consists of a single 32-bit LAT Event descriptor word, followed by zero or more event contributions. The event format for a single tower contribution is shown below.


32                      16                     0
+========================+=====================+
| 16 bits error/status   | 16 bit event length |
+========================+=====================+
| 16 bits Cell Header    | 16 bit contrib len  |
+========================+=====================+
|                                              |
|                                              |
/             Bulk Event Data                  /
|                                              |
|                                              |
+========================+=====================+

The 16 bit error/status word is encoded as follows:

  • 0x8 – LATp cell truncated

  • 0x10 – LATp cell header parity error

  • 0x20 – LATp cell data parity error