Microstack GPS problem

[GavynSykes]

Hi guys.

I bought a Raspberry Pi 3 Model B, a microstack baseboard and a microstack GPS.

I followed the instructions written in the official documentation but I can't connect to the GPS.

Basically, the GPS led flashes so it means it has find a gps fix, but I can't see any data from the PI.

For example, if I try "cat /dev/ttyAMA0" i get always nothing. I already used raspi-config to disable kernel serial and to enable i2c and spi.

Also if I try "stty -F /dev/ttyAMA0 ispeed 4800 && cat </dev/ttyAMA0" I get an error.

Anyone has any advice, please?

Or maybe these modules are not compatible with Pi 3?

Thanks a lot!

Marco

[izzycm]

Im having this same issue, I'll be looking into it for the next few days, if I find something i'll let you know

[GavynSykes]

thanks a lot!

i can't go any further...

[Douglas6]

Have you tried ttyS0 instead of ttyAMA0?

[GavynSykes]

Yes.

I tried also with a different board, a Raspberry Pi GPS HAT. The behaviour is the same: I got a gps fix from the led on the board, but I'm not able to communicate with the board in any way.

Maybe it's something related to the version 3 of the Pi? But the last gps board supports Pi 3.

I tried to reinstall raspbian, tried different configurations, I don't have any clue on how to resolve this issue...

[Stingray13]

I'm having the same problem!
Have tried numerous scripts, patches and tricks! None have worked!

Are we missing something here???

[GavynSykes]

I finally found a solution:

On the Pi 3, there are more steps to use serial, you have to disable the BT.

Edit config file:

sudo nano /boot/config.txt

Add this at the bottom:

dtoverlay=pi3-disable-bt-overlay

Then run this:

sudo systemctl disable hciuart