Command 6Dh, ACTAPPFILE (Activate application file)
Command Packet 6Dh is used to activate one of the application files stored in the Application File directory. The application file with the specified System File Index is activated.
Each application file is assigned a System File Index. The application file containing the factory default values is assigned a System File Index of zero (0), allowing this command to be used to reset the receiver to the factory default conditions.
The following table describes the packet structure.
|
Byte |
Item |
Type |
Value |
Notes |
|---|---|---|---|---|
|
0 |
STX |
1 (Char) |
02h |
Start transmission. |
|
1 |
STATUS |
1 (Char) |
See Receiver status byte. |
Receiver status indicator. |
|
2 |
PACKET TYPE |
1 (Char) |
6Dh |
Command Packet Type. |
|
3 |
LENGTH |
1 (Char) |
02h |
Data byte count. |
|
4–5 |
SYSTEM FILE INDEX |
2 (Short) |
0–n |
Unique number assigned to each of the application files stored in the Application File directory. |
|
6 |
CHECKSUM |
1 (Char) |
Checksum. |
|
|
7 |
ETX |
1 (Char) |
03h |
End transmission. |