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Configuring the Board PCI CD/CDa Configurable DMA Interface User’s Guide

8 EDT, Inc. May 2007

2. At the prompt, press Enter to confirm the loading operation. (If the file date is older than the PROM

ID date, you may need to press Enter twice.)

The board reloads the firmware from the PROM only during power-up, so after running

pciload, the

old firmware remains in the PCI FPGA until the system has power-cycled.

NOTE Updating the firmware requires cycling power, not simply rebooting.

For a list of all

pciload options, enter:

pciload --help

Loading the UI FPGA Firmware and Configuring the PCI CD/CDa

The utility initpcd loads the UI FPGA configuration files, programs the registers, sets the clocks (if

necessary), and gets the PCI CD/CDa mezzanine board ready to perform DMA. This utility takes, as

an argument, a software initialization file, and then automatically runs the pertinent commands.

If you use

initpcd to configure the PCI CD/CDa, your application can concern itself solely with

performing DMA and other application-specific operations; it will therefore omit PCI CD/CDa-specific

operations and be portable to other EDT boards that peform DMA.

To configure the PCI CD/CDa, enter:

initpcd -u unit_number -f pcd_config/filename.cfg

replacing unit_number with the number of the board (by default, 0), and replacing

filename with

one of the initialization files listed in About the Software and Firmware; for example:

initpcd -f

pcda.cfg

NOTE Software initialization files are editable text files. If the files provided don’t meet your needs, copy

and modify the one that’s closest to your required configuration, then run

initpcd with your new

file.

Using Custom FPGA Configuration Files

You can substitute your own FPGA configuration file, if necessary. If you wish to develop your own

VHDL design, contact EDT. When you’re done, be sure to create a new software initialization file for

your new firmware file and update the

pcd_config directory to include it.

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CDA CD 60 Betriebsanweisung Seite 12