I have one of these running happily on a Pi 3B+ as a GPS interface, and clock source.
It includes a microSD slot, that I can find no details of at all on the website.
From the schematic, and the pin table in the documentation, it seems to be connected to gpio's 8 through 11, which I believe means its connected to the SPI bus.
I've enabled SPI and I have two spi devices showing in /dev.
I'm not having much luck Googling for details of drivers to to handle a microSD on an SPI bus.
Any hints appreciated...
Hints to get the GPS functions on this board working on th Pi 3B +
- Drop Bluetooth, restore the hardware serial port.
- The PPS pin is not connected anywhere specific on the board, so patch the PPS pin with a hard link to a suitable GPS pin on the board
- Install the PPS driver, configure the appropriate pin to the PPS driver in config.txt.