EVK-7 / EVK-M8 User Guide
UBX-14041540 - R04
Early Production Information
Testing Power Save Mode
Page 14 of 24
6
Testing Power Save Mode
When testing Power Save Mode with 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.
For more information, refer to the
u-blox 8 / u-blox M8 Receiver Description including Protocol
Specification
[4].
