Programming Ublox GPS modules to use SPI ..#2

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Altinsanat

Joined Feb 3, 2025
1
Hi,
I've been using Ublox modules succesfully for years, where they output NMEA sentences into RX of a PIC.
As the PIC RX only allows 1x source, it needs a switch, that I would like to remove if possible.
To do this I hope to use the PIC SPI to WRITE/READ the GPS.

I've been trying for weeks, but I haven't found the correct way to do this yet.
GPS modules can be programmed using U-CENTER, but that means removing them from the PIC PCB and connecting to U-CENTER then back again.

I've done a lot of research, and post it if there is interest.
Is there anyone that wants to help me 'crack' this please?
Cheers, Camerart.
Hi, there
I have read the comments who has the same problem that they did not respond from Neo-M8N's SPI pins. I have the same problem and i did all the command that i should low the D_SEL, but i could not receive any data of SPI and it has received just UART data, what should i do?

@camerart
Mod: New thread, link to old thread
https://forum.allaboutcircuits.com/...ox-gps-modules-to-use-spi.185575/post-1806473
 
Last edited by a moderator:

camerart

Joined Feb 25, 2013
3,829
Hi, there
I have read the comments who has the same problem that they did not respond from Neo-M8N's SPI pins. I have the same problem and i did all the command that i should low the D_SEL, but i could not receive any data of SPI and it has received just UART data, what should i do?

@camerart
Mod: New thread, link to old thread
https://forum.allaboutcircuits.com/...ox-gps-modules-to-use-spi.185575/post-1806473
Hi A,
Is it possible for you to use the UART for your project?
C
 
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