API mode

Use the transmit request, or explicit transmit request frame (0x10 and 0x11 respectively) to send data to the coordinator. The 64-bit address can either be set to 0x0000000000000000, or to the 64-bit address of the coordinator. The 16-bit address should be set to 0xFFFE when using the 64-bit address of all 0x00s.

To send an ASCII “1” to the coordinator's 0x00 address, use the following API frame:

7E 00 0F 10 01 0000 0000 0000 0000 FFFE 00 00 31 C0

If you use the explicit transmit frame, set the the cluster ID to 0x0011, the profile ID to 0xC105, and the source and destination endpoints to 0xE8. These are the recommended defaults for data transmissions in the Digi profile.

You can send the same transmission using the following explicit transmit frame:

7E 00 15 11 01 0000 0000 0000 0000 FFFE E8 E8 0011 C105 00 00 31 18

The 16-bit address is set to 0xFFFE. This is required when sending to a 64-bit address of 0x00s.

Suppose the coordinator's 64-bit address is 0x0013A200404A2244. The following transmit request API frame (0x10) sends an ASCII “1” to the coordinator:

7E 00 0F 10 01 0013 A200 404A 2244 0000 0000 31 18

Example 2: Send a broadcast transmission

In this example, a '\r' refers to a carriage return character.

Perform the following steps to configure a broadcast transmission:

Enter command mode ('+++')
After receiving an OK\r, issue the following commands:
- ATDH0\r
- ATDLffff\r
- ATCN\r
Verify that each of the three commands returned an OK\r response.
After setting these command values, all serial characters are sent as a broadcast transmission.