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→Codec 12 Nebaigta
[[Image:qqq.png|qqq.png]]
[[Image:qqq.png|qqq.png]]
<small>Figure 3 CRC calculation algorithm</small>
*'''Command coding table'''
Command has to be convert from ASCII characters (char) to hexadecimal (Hex)
Table 2 ASCII conversion table
[[Image:asa.png|asa.png]]
*'''Command parsing example'''
Hexadecimal stream of command and answer in this example are given in hexadecimal form. The different fields of message are highlighted in gray and yellow for better readability and command is converted in ASCII for better understanding.
'''Server command'''
Hexadecimal stream:
[[Image:sx.png|sx.png]]
Parsed:
Preamble: 0x00000000
Packet Length: 0x00000018
Codec: 0x0C
Quantity of commands: 0x01
Command type: 0x05
Command size: 0x00000010
Command in ASCII after conversion: #GET DATAORDER<CR><LF>
Quantity of commands: 0x01
CRC: 0x00004990
'''Device answer'''
Hexadecimal stream:
[[Image:sds.png|sds.png]]
Parsed:
Preamble: 0x00000000
Packet Length: 0x00000016
Codec: 0x0C
Quantity of commands: 0x01
Command type: 0x06
Command size: 0x0000000E
Command response is in ASCII after conversion: #DATAORDER=1<CR><LF>
Quantity of commands: 0x01
CRC: 0x00000095
*'''Codec12 GPRS commands examples'''
The example commands given in hexadecimal form separated by dollar signs are suitable to be sent from TCP server during data exchange session between FMXXXX device and server (for more details see Figure 1 Command session) The command can be sent from a terminal program such as Hercules (in TCP server mode). Simply write command as explained below into Hercules Send field and click Send button. The TCP server must be listening on specified port (see field Port and button Listen in Figure 4).
[[Image:he.png|he.png]]
<small>Figure 4 Hercules terminal GUI</small>
*'''SMS over GPRS in Codec12 examples'''
In case of sending SMS commands over GPRS, do not use SMS logins set during configuration or do not leave empty spaces before command. Devices and firmware versions that support SMS over GPRS are listed in Table1.
== <big>Codec 13 Nebaigta</big> ==
== <big>Codec 13 Nebaigta</big> ==