USER MANUAL
TCM 515Z – 2.4 GHZ IEEE 802.15.4 Transceiver
© 2017 EnOcean | www.enocean.com
F-710-017, V1.0
TCM 515Z User Manual | v1.6 | September 2017 | Page 45/46
C.3.3
Command Code 0x25: CO_GET_FREQUENCY_INFO
The command CO_GET_FREQUENCY_INFO reports the radio frequency and the communica-
tion protocol used by the device. The structure of the command is listed in Table 17 below.
Group Offset Size Field
Value hex
Description
-
0
1 Sync. Byte
0x55
Header
1
2 Data Length
0x0001
1 bytes
3
1 Optional Length
0x00
0 byte
4
1 Packet Type
0x05
COMMON_COMMAND = 5
-
5
1 CRC8H
0xnn
Data
6
1 COMMAND Code
0x25
CO_GET_FREQUENCY_INFO
= 37
-
7
1 CRC8D
0xnn
Table 17 - Command structure of the CO_GET_FREQUENCY_INFO command
C.3.4
RESPONSE for CO_GET_FREQUENCY_INFO Command
Possible RESPONSE codes to a CO_GET_FREQUENCY_INFO command are:
00: RET_OK
02: RET_NOT_SUPPORTED
The frame structure for a RESPONSE to the CO_SET_CHANNEL command on devices that
support this command is shown in Table 18 below.
Group Offset Size Field
Value hex
Description
-
0
1 Sync. Byte
0x55
Header
1
2 Data Length
0x0003
3 bytes
3
1 Optional Length
0x00
0 byte
4
1 Packet Type
0x02
RESPONSE = 2
-
5
1 CRC8H
0xnn
Data
6
1 Return Code
0x00
RET_OK = 0
7
1 Frequency
0xnn
0x00 315Mhz
0x01 868.3Mhz
0x02 902.875Mhz
0x03 925 Mhz
0x04 928 Mhz
0x20 2.4 Ghz
8
1 Protocol
0xnn
0x00 ERP1
0x01 ERP2
0x10 802.15.4
0x20 Bluetooth
0x30 Long Range
-
9
1 CRC8D
0xnn
Table 18 - RESPONSE frame structure for CO_GET_FREQUENCY_INFO command
