User's Manual
Table Of Contents
- 1. INTRODUCTION
- 2. RS232 SERIAL PROTOCOL PRESENTATION
- 3. setting the internal parameters of the wavecard
- 3.1- Configuration of the functional parameters
- 3.2- Configuration of the control parameters
- 3.2.1 - selection of the radio operating channel when FHSS is deselected
- 3.2.2 - Selection of the RF medium physical mode
- 3.2.3 - Selection of the radio board emission power
- 3.2.4 - Activation of the Wavenis RF Asic RSSI threshold autocorrection
- 3.2.5 - Selection of the serial baudrate.
- 3.2.6 - Reading the firmware version of the WaveCard
- 3.2.7 - Reading the RSSI level (Received Signal Strengh Indicator)
- 3.2.8 - TEST Mode
- 4. SERVICE COMMANDS
- 5. COMMUNICATION MODES
- 5.1- 'Frame Exchange’ Mode
- 5.2- 'Message’ Mode
- 5.3- ’Polling’ Mode
- 5.4- ’Broadcast’ mode
- 5.4.1 - Configuration of the parameters relating to the 'Broadcast' mode
- 5.4.2 - 'BroadCast' mode without waiting for a response
- 5.4.3 - 'BroadCast' mode with waiting for responses
- 5.4.4 - Format of the commands – from the request transmitter side
- 5.4.5 - Format of the commands – from the request receiver side
- 5.4.6 - Use of the selective, or not-selective broadcast mode
- 5.5- ’Multi frames' Mode
Document : WCAMODHEL.sxw
5.2.3 - Use of the Relaying mode
The relaying mode is only available for point-to-point exchanges ('Frame Exchange' or 'Message' types).
a) On frame transmission
To send a request in Relaying mode to a distant equipment, it is necessary to configure the list of the
repeaters, via parameter RELAY_ROUTE. Then to send a request of the type REQ_SEND_FRAME (or
REQ_SEND_MESSAGE) to the address of the recipient.
The radio frame is then relayed automatically through the equipments configured in parameter
RELAY_ROUTE.
Attention, after sending a request to the recipient, the list of repeaters (RELAY_ROUTE) is
automatically re-initialized. It will thus be necessary to reconfigure it to send another request in
relaying mode.
Example : Sending a REQ_SEND_MESSAGE request in relaying mode
Remark : in the case of a REQ_SEND_MESSAGE request, the recipient doesn't respond.
b) On frame reception
Since the firmware version v2.00 (v4.00 for 500mW equipment), it is possible on frame reception in relaying
mode, to make go up the relay route towards the host of the receiving module.
To preserve compatibility with the preceding versions, this functionality is activated, or deactivated by
functional parameter RELAY_ROUTE_STATUS (0x06) of the receiving module (see chapter 5.2.1)..
According to the value of this parameter, the host will receive one of the following frames :
RELAY_ROUTE_STATUS value
Type of frame transmitted to the host,
on reception of a radio frame in
relaying mode
0x00 : deactivated RECEIVED_FRAME (CMD = 0x30)
0x01 : activated RECEIVED_FRAME_RELAYED (CMD = 0x35)
The format of the types of frame received by the host, are described as follow.
➢ Response received by the host, with RELAY_ROUTE_STATUS deactivated
RECEIVED_FRAME
HEADER CMD D ATA CRC ETX
3 bytes 1 byte 6 bytes variable 2 bytes 1 byte
0xFF ; 0x02 ;
0xXX
0x30
Radio address from
transmitter
equipment
data from received frame
the maximum size ( N bytes) is
defined below
0x03
WCAMODHEL Handbook page 48 of 74
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