Digital audio system serial commands – Gilderfluke&Co old MACs 8 bit Digital Audio System User Manual

Page 63

- Digital Audio System Serial Commands -

"a" (TRACK#)

Enter Setup Echo Mode:

This command puts the one card addressed by the TRACK# into this mode while taking all
other cards out of this mode. This is a special mode which lets you play with the command
structure of the digital audio system and get an echo of all commands accepted in plain
English. This form of echo should normally be used only while manually manipulating the
system as it can take a relatively long time to echo the 20 to 30 ASCII characters most
commands will return when in this mode. During this response time, no additional commands
should be given.

When in this mode, address specific commands are echoed by the card to which the
command was sent. Non-track-specific commands are echoed by the card which was
specified by the TRACK# when this mode was entered. This means that any track specific
command sent to a nonexistent card will not be echoed, while any non-track-specific
command (like a COCKED command) will be echoed even when no card in the system is ac-
tually effected by the command.

EXAMPLE: to put card 00 into SETUP ECHO mode:

a 0 0

TRACK 00 Setup Mode Selected

EXAMPLE: a 'Start All' command will echo: 'Start All'

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"b"

Exit Setup Echo Mode:

This command takes all cards in the system out of SETUP ECHO MODE.

EXAMPLE: to take any and all cards out of SETUP ECHO mode:

"c" (TRACK#)

Enter Global Echo Mode:

This command puts the one card addressed by the TRACK# into this mode while taking all
other cards out of this mode. The one card which is in this mode will echo all non-track-
specific commands accepted by the system. This type of echo can be used in an automated
system to assure that the digital audio system has received any non-track-specific command.
Note that since only one card in the system is in this mode at a time, this form of echo only
verifies the operation of this one card and no other parts of the system.

EXAMPLE: to put card 00 into GLOBAL ECHO mode:

c 0 0

EXAMPLE: a 'Start All' command will echo: u

"d"

Exit Global Echo Mode:

This command takes all cards in the system out of GLOBAL ECHO MODE.

EXAMPLE: to take any and all cards out of GLOBAL ECHO mode:

"e" (TRACK#)

Enter Echo All Mode:

This command puts the one card addressed by the TRACK# into this mode while taking all
other cards out of this mode. The one card which is in ECHO ALL MODE echoes all characters
sent to the digital audio system through the serial port. This type of echo can be used to verify
that the digital audio system has received all characters sent to it. Note that since only one
card in the system is in this mode at a time, this form of echo only verifies the operation of this
one card and no other parts of the system.

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