March 11, 1998

Overview

Version 3.1.2 of the VME6U6 / VME9U12 host software includes the following changes:

• A bug fix in TDM configuration library functions.
• Improvements in TDM diagnostics used for burn-in.

Bug Fix in TDM Configuration Functions

A bug was discovered the the exp_tdmcfg library function that is used, in some cases, to configure the TDM subsystem. The problem could, over time, corrupt serialization and version data store in the EEROM device on the VME6U6 and VME9U12 baseboards. The bug has been fixed in this release.

Several other TDM configuration functions called the exp_tdmcfg function as part of their operation. These are:

exp_master
exp_slave
exp_independent
t1rx_master
t1rx_slave
t1rx_independent
t1xmit_master
t1xmit_independent

Applications that use any of these functions are subject to possible corruption of EEROM data and should be updated using the new library code in this release.

The dspinit program uses these functions and should also be updated.

TDM Burn-In Diagnostics

The d3roundmem diagnostic program has been modified to solve a possible start-up problem when used by the dspburn program. It was possible for dspburn to check for TDM message traffic before the DSPs actually began to transfer TDM messages and report that the TDM portion of the test had failed to start.

The version of d3roundmem included in this release now waits for the DSPs to initiate TDM traffic before terminating.

Additional information is now included in the report from dspburn in the event that TDM messaging really does fail to start or stops to help diagnose the problem better.