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
In the case of the Relaying mode, the time-out from the transmitter point of view is longer than in Point-to-
point mode, because of the transit via the relays.
Time-out RADIO_USER_TIMEOUT is always applied, but does not take into account the relays. This time
value will be applied by the last relay, before the recipient (R2 Delta = Radio_User_Timeout).
Remark : the value of the RADIO_USER_TIMEOUT applied by the last relay, is configured in the
transmitter; and not in the relay itself.
In fact, in 'relaying' mode, the relay use a value of RADIO_USER_TIMEOUT encapsulated in the
radio frame, by the transmitter.
The relay is not using its own parameter settingof RADIO_USER_TIMEOUT, only when it is
transmitting; not repeating.
In the diagram, value RADIO_USER_TIMEOUT configured in the transmitter, corresponds to time Delta R2
applied by Relay 2.
Delta 1, and Delta R1 are the times evaluated by the corresponding radio equipment. This evaluation
depends of the number of relays, the type of WakeUp, its length, and value of parameters
RADIO_USER_TIMEOUT; and RADIO_ACKNOWLEDGE.
5.2- 'Message’ Mode
This type of radio exchange allows to send a request, without awaiting response from the distant equipment.
WCAMODHEL Handbook page 45 of 74