I-7540D-WF CAN to Wi-Fi Converter User’s Manual (Ver. 2.0, Jan/2012) ------------- 12
Enable (default) Disable
Figure 2-8: Terminal resistor JP2 Jumper Position
2.5 Watchdog Timer Settings
A watchdog timer (WDT) is a device that performs a specific
operation after a certain period of time if something goes wrong and the
system does not recover on its own. A watchdog timer can perform a
warm boot(restarting the system) after a certain number of milliseconds.
The I-7540D-WF module supplies a jumper for users to active the
watchdog timer or not. If users want to use this WDT, can open the I-
7540D-WF cover and use the JP1 to activate the WDT built in the module,
as the Figure 2-7. Note that the default setting is active.
Enable (default) Disable
Figure 2-9: Watchdog timer JP1 Jumper Position
2.6 Init / Normal Dip-switch
On the back of the I-7540D-WF module, there is a dip-switch used for
firmware operation or firmware updating of the module. The following
steps show how to use this dip-switch.
2.6.1 Firmware Update Mode
Please set the dip-switch to the “Init” (Initial) position as Figure 2-10,
and then the I-7540D-WF will work in the “Firmware Update Mode” after
reset the power of the module. In this mode, users can update the
