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
If RADIO_ACKNOWLEDGE is active, and the transmitter does not receive a radio
acknowledgement, then the request is re-emitted three times, before sending the error frame.
If RADIO_ACKNOWLEDGE is inactive, then the error frame is sent after time-out
RADIO_USER_TIMEOUT.
5.1.4 - Time-out management
when sending a request with waiting of a response (Frame Exchange), the timeout relating to waiting of the
response frame, is given by parameter RADIO_USER_TIMEOUT (2 seconds by default).
The beginning of counting of this timeout depends on another parameter: RADIO_ACKNOWLEDGE.
If RADIO_ACKNOWLEDGE is active, then counting begins on reception of the acknowledgement from the
Request. On the other hand, if RADIO_ACKNOWLEDGE is inactive, then the counting of the
timeout begins directly after sending the request on radio medium.
• Diagram of a Point-to-Point exchange
WCAMODHEL Handbook page 43 of 74