Description
This frame is used to initiate an AT command on a remote device.
Format
The following table provides the contents of the frame. For details on frame structure, see API Frames.
| Offset | Size | Frame Field | Description |
|---|---|---|---|
0 |
8-bit |
Start Delimiter |
Indicates the start of an API frame. |
1 |
16-bit |
Length |
Number of bytes between the length and checksum. |
3 |
8-bit |
Frame type |
0x1B |
4 |
8-bit |
Frame ID |
A reference identifier used to match status responses. |
5 |
128-bit |
Destination IPv6 Address |
The address to send to |
21 |
8-bit |
Options |
option codes:
NOTE: If 'Apply Changes' is not set, AC (or WR + FR) command must be sent before the changes will take effect. All other bits must be zero. |
22 |
16-bit |
AT command |
The two ASCII characters that identify the AT Command. |
24 |
Variable |
Value |
The value to be set by the AT command (if required) |
EOF |
8-bit |
Checksum |
0xFF minus the 8-bit sum of bytes from offset 3 to this byte (between length and checksum). |
