EVK-7 / EVK-8 / EVK-M8 User Guide
UBX-14002502 - R09
Early Production Information
Testing Power Save Mode
Page 15 of 28
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Testing Power Save Mode
When testing Power Save Mode with EVK-7 / EVK-8 / EVK-M8, observe the following points:
When configuring Power Save Mode you must set up the parameters using the CFG-PM2 message first and
then enable Power Save Mode using CFG-RXM. The Configuration view or Messages view of the u-center
evaluation software can be used to do this. When enabling the mode using CFG-RXM, always save the
configuration by checking the “save configuration” box in u-center otherwise the configuration will be lost.
Communications to the evaluation kit must be via the UART, I2C or SPI (not USB).
The evaluation kit can be supplied via the USB connector or via V5_IN at the front panel connector. Do not
connect the USB cable to the PC! This can be done by either connecting a USB cable from the evaluation kit
to a USB hub, or by using a USB power connector.
When altering the Power Save Mode configuration, first disable the mode using CFG-RXM (remember to
enable “save configuration” again), before changing the CFG-PM2 parameters. Then re-enable Power Save
Mode.
EVK-7x supports GPS only in Power Save Mode.
