SIIG AV-GM0993-S1, Manual

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0x03 0xaa 0xad
Set ANC Data
Function Description:
Set SMPTE_352M On/Off
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 0x51
6 Command
Parameter 1 0x01 01 : Off
02 : On
7 Check Sum BYTE CheckSum = 0;
for(int i =0; i<n; i++ )
Ch= Byte(i);
Acknowledgement character
0 ACK/NACK 0xaa/0x55 unsigned char chksum=0;
for (int i=0; i<bu+i){
= buf[i];
if (chksum>0xff)
chksum =
chksum–0xff–1;}
Receive
0 Command Length 0x03
1 Acknowledgement 0xaa/0x55
2 Check Sum 0xad/0x58
Example
Command:
0x08 0x50 0x47 0x33 0xff 0x51 0x01 0x23
Acknowledgement:
0x03 0xaa 0xad