Murata Electronics North America DNT24 Manual Do Utilizador
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DNT24 Integration Guide – 03/04/15
parameter register banks and the details of each parameter are covered in Section 7.4 of this guide. Sec-
tions 4.2 through 5.7 discuss which parameters apply to various aspects of configuring a DNT24 system,
network or application interface.
tions 4.2 through 5.7 discuss which parameters apply to various aspects of configuring a DNT24 system,
network or application interface.
4.2 Configuring a Basic Point-to-Point System
A basic DNT24 point-to-point system is suitable for many serial data applications. The default config-
uration of a DNT24 is a remote with the serial port configured for transparent operation at 9.6 kbps,
8N1. To configure a basic point-to-point system:
uration of a DNT24 is a remote with the serial port configured for transparent operation at 9.6 kbps,
8N1. To configure a basic point-to-point system:
1.
Configure one of the modules as a base by setting the DeviceMode parameter in Bank 0 to 0x01.
2.
Set the MemorySave parameter in Bank 0xFF to 0xD2, which will save the DeviceMode parame-
ter to EEPROM and reset the module, enabling base operation.
ter to EEPROM and reset the module, enabling base operation.
3.
All other parameters may be left at their default values.
4.3 Configuring a Basic Point-to-Multipoint Point System
A basic DNT24 point-to-multipoint point systems is suitable for many serial data applications where
multiple remotes are used. The default configuration of a DNT24 is a remote with the serial port con-
figured for transparent operation at 9.6 kbps, 8N1. To configure a basic point-to-multipoint system:
multiple remotes are used. The default configuration of a DNT24 is a remote with the serial port con-
figured for transparent operation at 9.6 kbps, 8N1. To configure a basic point-to-multipoint system:
1.
Configure one of the modules as a base by setting the DeviceMode parameter in Bank 0 to 0x01.
2.
If the host application driving the base will individually communicate each remote, set the Proto-
colMode parameter in Bank 4 of the base to 0x01. This step is not required if messages from the
base to the remotes will always be broadcast and/or the base does not need to know the MAC
address of the remote sending a message.
colMode parameter in Bank 4 of the base to 0x01. This step is not required if messages from the
base to the remotes will always be broadcast and/or the base does not need to know the MAC
address of the remote sending a message.
3.
Set the MemorySave parameter in Bank 0xFF to 0xD2, which will save the DeviceMode parame-
ter to EEPROM and reset the module, enabling base operation.
ter to EEPROM and reset the module, enabling base operation.
4.
All other parameters may be left at their default values.
5.
If the host application driving the base will individually communicate with each remote, the MAC
address for each remote can be obtained from announce packets, heartbeat packets, a
ForceDiscover command, or by reading or scanning the MAC address from the label on top of
each remote.
address for each remote can be obtained from announce packets, heartbeat packets, a
ForceDiscover command, or by reading or scanning the MAC address from the label on top of
each remote.
4.4 Configuring a Customized Point-to-Point or Point-to-Multipoint System
The DNT24 includes many configuration parameters that allow extensive customization of a point-to-point
or point-to-multipoint system. Most applications will require only a few of these parameters be changed
from their default values. But for those applications that need them, RFM recommends the following con-
figuration sequence. Skip the configuration steps where the default parameter value is satisfactory.
or point-to-multipoint system. Most applications will require only a few of these parameters be changed
from their default values. But for those applications that need them, RFM recommends the following con-
figuration sequence. Skip the configuration steps where the default parameter value is satisfactory.
1.
Configure one of the modules as a base by setting the DeviceMode parameter in Bank 0 to 0x01.
2.
Set the optional AES security key in all system radios by loading your selected 16-byte string into
the SecurityKey parameter in Bank 0 (the default is 16 bytes of 0x00).
the SecurityKey parameter in Bank 0 (the default is 16 bytes of 0x00).