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
2. RS232 SERIAL PROTOCOL PRESENTATION
This protocol is dedicated to an asynchronous RS232 or TTL link between the host and the radio board.
➢ Transmission format :
8 bits data,
1 stop bit,
no parity
➢ Transmission speed : 9600 baud (contact us for other speed : marketing@coronis-systems.com)
2.1- Exchanges principle
The host or the radio board can take the initiative of the exchange. Nevertheless in the high majority of the
cases, the host will take the initiative.
Fig. 1 – synoptic of the exchanges between a WavePort modem, and its host
2.1.1 - Low level acknowledge
In all the cases, the serial frames exchanged between the host and the radio board are managed by an
acknowledge mechanism.
A minimum latency time of 1 ms must be respected between the frame reception and the corresponding
acknowledge emission in order to respect the radio board processing time after a frame reception.
If the Acknowledge frame is not received by the initiator, it can decide to re-send several times the frame
(retries mechanism). The RF default setting is :
Time-out = 500 ms
repetition number = 3
WCAMODHEL Handbook page 6 of 74