User's Manual

Document : CS-SUP-MUTI-WPORTAPP-E02.sxw
b) Example describing a point-to-point exchange of the type Request / Response.
When using a point-to-point exchange of the type request/ Response, the transmission of the request is
made in the same way that previously. But the transmitter, after the sending of the data, awaits for a
response, during a time which can be configured by the RADIO_USER_TIMEOUT parameter (0x0C).
The receiver, after treatment of the request, will return its response by using a specific WakeUp preamble,
called short WakeUp (Long WakeUp being useless since the transmitter is already in phase of reception).
➢ Exchange without radio acknowledge
➢ Exchange with radio acknowledge
Configuration example of the parameters of wakeup management.
during an exchange between two WaveCard, where between two idle periods the transmitter must quickly
transmit data to the receiver.
1- Send a command of parameter modification to the receiver of the exchange, to modify its
WakeUp period to 0 (quasi-permanent reception) ;
2- Configure WakeUp_Length parameter of the transmitter with 40ms ;
3- transmit the data to the receiver ;
4- To send a command of parameter modification to the receiver of the exchange, to modify its
wakeup period to 10s (default value).
5- Configure WakeUp_Length parameter of the transmitter with 1100ms (default value).
WaveCard user handbook page 19 of 67