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Configuring the PCD8 PCD8 8-bit DMA Interface User’s Guide

7 EDT, Inc. May 2007

For a list of all pciload options, enter:

pciload --help

Loading the UI FPGA Firmware and Configuring the PCD8

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

necessary), and gets the PCD8 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 PCD8, your application can concern itself solely with performing

DMA and other application-specific operations; it will therefore omit PCD8-specific operations and be

portable to other EDT boards that peform DMA.

To configure the PCD8, 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

pcda8.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 Guia do Utilizador Página 10