CDB4923 datasheet(39/50 Pages) CIRRUS

39 / 50 page

CDB4923 CDB49300

DS262DB2

12. APPENDIX F: BOARD CONTROL SOFTWARE

There is a suite of programs used to control the

CDB4923/300.

The definitions given refer to

‘CDB30’ executables which should be used with

the both the CDB4923 and the CDB300.

These software tools are designed to operate from

a DOS prompt and can work with any parallel port

address (LPT1, LPT2, or LPT3). The default ad-

dress for all of the programs is 0x378 (also known

as LPT1), but the port address can be changed by

using the '-p' option provided with every tool. Each

time a program is executed, the address that was

used is echoed to the screen. If a program seems to

fail, verification of the parallel port address should

the first step in troubleshooting.

All of these programs are designed to access the

CS492x/CS493xx using SPI or I2C serial commu-

nication, or INTEL or MOTOROLA parallel com-

munication. The communication mode can be

chosen from the command line with the '-m' option.

It should be remembered that the mode chosen

must correspond to the communication mode used

by the CS492x/CS493xx. If the DSP is using a

communication mode which does not match the

software setting, results will be unpredictable.

Please see Digital Signal Processor of this

datasheet to learn how to change the DSP’s com-

munication mode.

The source code for all programs can be found on

the floppy disk provided with the CDB4923/300.

These programs are documented and will provide

insight into communicating successfully with the

CS492x/CS493xx. The source for CDB30_LD is

particularly useful since it demonstrates the full

handshaking protocol required during boot-up of

the CS492x/CS493xx.

CDB30_LD - program used to load code into the CS492x/CS493xx.

Usage:

cdb30_ld <input_file.ld> [-pXXX] [-mY] [-v]

-p = parallel port address

XXX = address (0x278, 378* or 3bc)

-m = communication mode

Y = mode designator (i = I2C*, s=SPI, m=MOT, n=INT)

-v = disable verbose mode

* = default

CDB30CMD - program used to send commands, or configuration files to the CS492x/CS493xx.

Usage:

cdb30cmd <[ABCDEF] or [-fY]> [-mZ] [-pXXX] [-v]

ABCDEF = Three byte hex command

-f = send configuration file

Y = .cfg file with configuration parameters

-p = parallel port address

XXX = address (0x278, 378* or 3bc)

-m = communication mode

Z = mode designator (i = I2C*, s = SPI, m=MOT, n=INT)

-v = disable verbose mode

CDB4923 Datasheet(PDF) 39 Page - Cirrus Logic

CDB4923 Datasheet(HTML) 39 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Datasheet Download

Link URL