SIIG AV-GM0993-S1, Manual

Page: 24 / 29

23
Set Audio Mask
Function Description:
Set Mask
Command
Byte Name Value Comment
0 Command Length 0x08
1 Check Code 1 0x50
2 Check Code 2 0x47
3 Check Code 3 0x33
4 Device ID 0xff
5 Command ID 0x34
6 Command
Parameter 1 0x01 01 : Off
02 : CH 1
03 : CH 2
04 : CH 3
05 : CH 4
06 : CH 1+2
07 : CH 3+4
08 : CH 1+2+3+4
7 Check Sum unsigned char chksum=0;
for (int i=0; i<bu+i){
= buf[i];
if (chksum>0xff)
chksum =
chksum–0xff–1;}
Acknowledgement character
0 ACK/NACK 0xaa/0x55 ACK: 0xaa
Command Value is right
NACK: 0x55
Command Value is error.
Receive
0 Command Length 0x03
1 Acknowledgement 0xaa/0x55
2 Check Sum 0xad/0x58
Example
Command:
0x08 0x50 0x47 0x33 0xff 0x34 0x01 0x06
Acknowledgement: