Gilderflukeco old MACs 8 bit Digital Audio System Manuel d'utilisateur télécharger pdf (Page 73)

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":" (TRACK#) (DELAY TIME) Set Delay:

This command allows the user to adjust the time set for the delay function on the card

selected by TRACK#. The delay can serve two functions:

1) Delay the actual start of playing from 1/34th of a second to about 1/2 hour from the time the

start command is received after a reset command.

2) While in looping mode, delay for a period of 1/34th of a second to about 1/2 hour between

each iteration of the loop.

Acceptable values for DELAY are from 0000 to FFFF. Each count is equal to .029127111

seconds. If the value is 0000, the function is disabled.

EXAMPLE: to give card 00 a delay value of 1 minute (080CH is equal to 2060 counts, which is

equal to 60.00184866 seconds): : 0 0 0 8 0 C

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"=" (TRACK#) (ADDRESS) Set Memory Address:

Address bits 10 through 42 for the EPROM array are stored in the microcontroller. These can

be read out using the Memory Address Status command, or loaded using this command.

Because the addressing for any memory chips mounted on expansion boards is not direct, this

method can only be used for accessing the first 16 memory chips. If the system is running

when this command is received, then after the current 1 KByte is played, the new address will

take effect. If the system is stopped when this command is received, then it will take effect as

soon as the card is started.

Setting address values only effects the first 16 memory chips.

EXAMPLE: to set the Digital Repeater on card 00 to address 12345678: = 0 0 1 2 3 4 5 6 7 8

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Clock Commands:

"<" (TRACK#) Stop Clock:

">" (TRACK#) Start Clock:

Only one card in the entire digital audio system will normally be enabled as the master clock

for all of the Digital Audio Repeaters in the system. For multi track systems, starting together

and then running from the same clock will usually give a good enough synchronization

between tracks. If a greater level of synchronization is needed, these commands can be used.

They must be used cautiously, however, as they can cause problems if used improperly.

These commands are used to start and stop the clock on the card specified by the TRACK#.

To use these commands to tighten the synchronization between cards, you will need to stop

the clock before issuing Start Commands, and then restart the clock. If the clock remains

stopped for too long, the dead man timer will time out and reset the cards. The dead man

time is about 1 second.

EXAMPLE: to start clock on card 00: < 0 0

EXAMPLE: to stop clock on card 00: > 0 0

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"?" (HALF-MASK) (FULL-MASK) Mute Masks:

This command usually comes from the PA MASTER in a digital audio system which is equipped

with a PA system.

This command is followed by an 8 bit half-mute mask and an 8 bit full-mute mask. Any bits on

these two masks which match enabled full and half mute zones will cause an appropriate

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Gilderflukeco old MACs 8 bit Digital Audio System Manuel d'utilisateur Page 73

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