LG77L i2C and UART

IoT Modules GNSS Module
1

Hi, does anyone have an answer for this?

Based on this hardware design document for the LG77L
4984ca57-0f14-4027-9602-6aedb9b02308.pdf (1.7 MB)

It says,
The I2C interface is used for NMEA messages output by default. The module also supports the receiving of PMTK/PQ messages through the I2C bus. If unused, leave the pins N/C (not connected)

So the question is, if this means ‘by default’ how do we get messages over the UART?

In my hardware design, both the i2C line and UART lines are connected to the controller IC.

Thanks!

2

UART is always enabled. If you can choose between UART and I2C, UART is going to be easier to work with. I2C is supported on special firmware versions only and you need to periodically query the data.

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