Discovery Control Messages
The Discovery Control Messages handles the Discovery Process.
In Discovery Process Azande Studio will be updated with following information from Target:
- Available Target Features
- Target Information
START_TARGET_DISCOVERY {0x77, 0x01}
Azande Studio ==>> Target
- This message is sent from Azande Studio to Target.
- When Target receive START_TARGET_DISCOVERY message it will send following messages to Azande Studio:
- A TARGET_INFORMATION_XML message.
- A FEATURE_XML_DEFINITION message for each Feature.
Byte# |
0 |
1 |
2 |
3 |
4 |
5 |
Name |
START |
ID |
SUB ID |
CRC MSB |
CRC LSB |
END |
Value |
0xAA |
0x77 |
0x01 |
0x9C |
0xE0 |
0xBB |
FEATURE_XML_DEFINITION {0x77, 0x02}
Target ==>> Azande Studio
- This message is sent from Target to Azande Studio
- When Target receive START_TARGET_DISCOVERY, Target will send each feature in a FEATURE_XML_DEFINITION message to Azande Studio.
Byte# |
0 |
1 |
2 |
3 .. N-3 |
N-2 |
N-1 |
N |
Name |
START |
ID |
SUB ID |
PAYLOAD |
CRC MSB |
CRC LSB |
END |
Value |
0xAA |
0x77 |
0x02 |
CRC16-CITT |
0xBB |
||
TARGET_INFORMATION_XML {0x77, 0x03}
Target ==>> Azande Studio
- This message is sent from Target to Azande Studio.
- The message holds a XML definition of the Target.
- When Target receive START_TARGET_DISCOVERY, Target will send a TARGET_INFORMATION_XML message to Azande Studio.
Byte# |
0 |
1 |
2 |
3 .. N-3 |
N-2 |
N-1 |
N |
Name |
START |
ID |
SUB ID |
PAYLOAD |
CRC MSB |
CRC LSB |
END |
Value |
0xAA |
0x77 |
0x03 |
CRC16-CITT |
0xBB |
||
TARGET_FEATURE_LIST_CHANGED_EVENT {0x77, 0x04}
Target ==>> Azande Studio
- This message is sent from Target to Azande Studio.
- This message notifies Azande Studio that the list of available Features has changed in Target.
- Azande Studio will initiate a new Target-Discovery when receiving this message.
Byte# |
0 |
1 |
2 |
3 |
4 |
5 |
Name |
START |
ID |
SUB ID |
CRC MSB |
CRC LSB |
END |
Value |
0xAA |
0x77 |
0x04 |
0xCC |
0x45 |
0xBB |
Note: With escaping message becomes: AA, 77, 04, CC, FF, 45, BB