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
The format of the types of frame received by the host, are described as follow.
➢ Request in 'Message' mode
REQ_SEND_MES SAGE
HEADER CMD D ATA CRC ETX
3 bytes 1 byte 6 bytes variable 2 bytes 1 byte
0xFF ; 0x02 ;
0xXX
0x22
Radio address
from equipment
to reach
n bytes of data to transmit
the maximum size ( N bytes) is
defined below
0x03
Remark : maximum size definition
- Point to Point mode
:
Max = 152 bytes of data
- Relaying mode : Max = 152 – (2 + 6 x Number of repeaters)
=> 1 repeater : 144 bytes of data,
=> 2 repeaters : 138 bytes of data,
=> 3 repeaters : 132 bytes of data.
➢ Acknowledgement of the request
RES_SEND_FRAME
HEADER CMD D ATA CRC ETX
3 bytes 1 byte 1 byte 2 bytes 1 byte
0xFF ; 0x02 ;
0x05
0x21
Status
0x00 : transmission OK
0x01 : transmission error
0x03
➢ Status frame – 0x37 (END_MESSAGE_EXCHANGE)
END_MES SAGE_EXCHANGE
HEADER CMD D ATA CRC ETX
3 bytes 1 byte 1 byte 2 bytes 1 byte
0xFF ; 0x02 ;
0xXX
0x37 0x00 0x03
Attention, the reception by the host of this command depends on the activation of status frame in
parameter EXCHANGE_STATUS (0x0E).
This command is useful while trying to exchange datas using 0x22 (REQ_SEND_MESSAGE), 0x24
(REQ_SEND_BROADCAST_RESPONSE) and 0x2A (REQ_SEND_BCST_MESSAGE) commands, since it gives
Wavecard Radio Board availibility for next RS232 serial link exchange (see diagram,p.46).
WCAMODHEL Handbook page 47 of 74