March 26, 1999

Overview

Version 3.2.1 of the EmPack software, Embedded Firmware and FPGA configurations includes the following changes.

DLL initialization routine now uses INQUIRY data from the Operating System.

Added support for Adaptec 1480A Cardbus SCSI adapter.

Modifications to DM12C549 mini-PCI module hardware and software.

Modifications to EmPack diagnostic programs.

Note: This release includes a new FPGA configuration for DM12C549 mini-PCI modules. Customers with these modules types on EMPCI mezzanines must run empciflash to update the configuration stored in the mezzanine's flash memory.

DLL Initialization Uses INQUIRY Data

For Windows NT only: The DLL initialization routine now uses INQUIRY data from the OS. This fixes a problem on some systems where certain SCSI CDROM drives would behave improperly due to a query for EMPACKS.

Support for Adaptec 1480A Cardbus SCSI Adapter

For Windows NT only: New support for this SCSI adapter allows the data transfer rate between a Windows NT lap-top computer and EmPack devices to reach 6 MB per second.

Hardware and Software Changes for DM12C549 DSP Modules

The data transfer routines are fixed to properly increment C549 DSP target addresses when the data has to be transferred in more than one SCSI transaction.

It was discovered that the C549's ROM boot loaded code sets interrupt status whenever the DSP's reset signal is de-asserted. Clearing of this interrupt status is now done in the EmStartResource API function so that there is no longer an interrupt left pending after program execution is started on a C549 DSP.

New functionality in the DM12C549 hardware configuration include:

- DMA data transfers between DSPs and the PCI bus
- Fixes for problems with HPI access during PLL stabilization period
   and DSP reset being de-asserted during HPI access.

DMA data transfer capability and handling of the PLL stabilization problem also required changes to files dm12c549.h and boot.asm used for compiling C549 code. These are located in the $CAC/emapck/mod_support/dm12c549 directory.

Modifications to EmPack Diagnostic Programs

The emchip diagnostic now works when it is run immediately following EmPack power-up and a specific module or resource is specified.

A bug in reporting errors during the random data portion of the empiomem diagnostic is fixed.