EVK-M8T User Guide
UBX-14041540 - R05
Testing Power Save Mode
Page 12 of 22
Early Production Information
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.
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For more information, refer to the u-blox 8 / u-blox M8 Receiver Description including Protocol
Specification [4].
