Thingmagic Mercury xPRESS Platform v1.7 Manuel d'utilisateur Page 52

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WiFi Module
A DIVISION OF TRIMBLE
52 Using the Optional Modules
Connection Status
RN-171 uses GPIO pins to monitor the status of association/connection and to control the
connection as below.
xPRESS Reader uses GPIO4 and GPIO6 pins to monitor the status of association and
connection in function WIFLY_MonitorWiflyStatus() which will be called by the task
task_Wedge.
Note
GPIO5 is not used as this pin is NC on xPRESS Reader
Power Management
RN-171 has the power features shown below:
Signal Name Direction Function
GPIO4 Output This pin goes high after the module has associated/authenticated and has
an IP address.
GPIO5 Input Set this pin high to trigger a TCP connection and low to disconnect.
GPIO6 Output This pin goes high when the module is connected over TCP and low
when disconnected.
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