DLP-RFS-DK DLP Design, DLP-RFS-DK Datasheet - Page 7

• Manufacturer Part Number: DLP-RFS-DK
• Description: RF Development Tools DLP-RFS1231 development kit
• Manufacturer: DLP Design
• Type: RF Transceiversr

Specifications of DLP-RFS-DK

• Rohs: yes
• Product: Development Kit
• Tool Is For Evaluation Of: DLP-RFS1231
• Frequency: 915 MHz
• Operating Supply Voltage: 2.4 V to 3.6 V
• Dimensions: 1.5 in x 2 in x 1.53 in
• Interface Type: UART
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• For Use With: DLP-RFS1231

4.0 APPLICATION DEVELOPMENT – SimpleRF™
A software library is available for free download upon purchase of the DLP-RFS1231 that
demonstrates reading the serial number, transmitting and receiving data packets and setting up
simple point-to-point and star networks.
The software design is divided into task-specific “managers” and a hardware-specific API. A manager
provides specific functions related to the operation of the radio protocol. The overall design consists
of layers that interact through callback functions. There is no RTOS, although the software can be
configured to accommodate a small RTOS if desired.
4.1 RF PROTOCOL STACK OVERVIEW
The SimpleRF™ RF Protocol Stack is divided up into three layers. The lowest-level layer is the PHY
layer. An application could only use the PHY layer to provide point-to-multipoint (broadcast) RF
communications, or it might use the PHY layer in conjunction with the MAC layer to provide
higher-level message delivery services. Details of the operation of the various layers are outlined
below:
4.1.1 RF MESSAGE MANAGER
The RF Message Manager is responsible for constructing messages. The RF Message Manager
decouples message management from protocol components. It builds a message as a reverse linked
list of pointers to buffers. The RF Message Manager operates on messages using unique message
handles. All message storage is external; this manager does not store message data locally.
4.1.2 PHY MANAGER
The PHY Manager (layer) provides control of the physical RFIC and the low-level protocol for basic
packet transceiver services. The PHY Manager can operate in single-channel DTS mode or in
26-channel FHSS mode.
4.1.3 MAC MANAGER
The MAC Manager (layer) is responsible for sending and receiving packets using the PHY. The MAC
Manager is analogous to the MAC layer in the OSI standard 7-layer stack. It provides the ability to
send messages to specifically addressed nodes and, optionally, to receive acknowledgements for
those messages. If an acknowledgement is expected and not received, the MAC layer will retry the
message.
The MAC Manager supports three packet types:
1. kMACUniAck - Acknowledged Packet
2. kMACUniNoAck - Unacknowledged Packet
3. kMACMulti - Multicast Packet
© DLP Design, Inc.
Rev 1.1 (November 2012)
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