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Input Gain and Output Volume Control:
A. The User has to send the following Command, including the value to be assigned to"Vol",for
modifying the Input Gain (Chn = 0, 1) or the Output Volume (Chn = 2, 3, 4, 5, 6, 7).
Also the Output signal Phase can be modified:
TX:
STX
ID_M
ID_N
F0H
C3H
XX
XX = 0,..,31 (ID device)
Chn=0,...,7: Channel selected, 0, 1=In1, In2; 2,...,7=Out1,..,Out6; when Channel 0, 1 selected, then Vol=Input
Gain, when Channel 2, 3, 4, 5, 6, 7 selected, then Vol= Output Vol.
Phs= Phase only if the Chn>1; Value=0, 1 where 0=direct, 1=inverse (180')
Vol= Gains from 0 to 180 (-12dB/ +6dB step 0.1dB)
B. If the command has been properly executed and the Gain/Volume modified, then the
microcontroller will send back to the User (eg Crestron/AMX Remote Control..) the same frame
used by the command:
RX:
STX
ID_M
ID_N
F0H
C3H
XX
UPDATE GAINS-PHASE: CMD=01H
CMD
D0
D1
01H
00H
Chn
CMD
D0
D1
01H
00H
Chn
D2
D3
D4
00H
00H
00H
D2
D3
D4
00H
00H
00H
35
D5
D6
D7
00H
Phs
Vol
D5
D6
D7
00H
Phs
Vol
ETX
F7H
ETX
F7H
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