Remora - Rpi Software Stepping Using External Microcontroller via SPI

I remove solder bridge 118.
Used your provided .bin file from the updated repo.
Connected SPI2
Nuc RPI
PB-15 19 MOSI
PB-13 23 SCK
PB-12 24 CS
PB-2 22 RESET
PC-2 20 MISO
Sadly mine still at E-stop. though in hal show remora spi pin reset toggles less than a sec,when I click F1.

SB118 (LD3-LED)
ON Red user LED LD3 is connected to PB14.
OFF Red user LED LD3 is not connected.

yes, remove the solder bridge on 118 then we can use PB14. its not going to work if you deviate from the pinout in the github, you will have to follow the picture.

-SPI2 for connection to RPI4, with pins PB1, PB13, PB14 and PB15, and pin PB2 for reset

image missing https://raw.githubusercontent.com/cakeslob/Remora/nucleo_staticZE/NUC_CNC_pi144.png

Bravo, your default config working.
Thanks a lot.
Now I have to run my existing lathe config

Excellent 
Its for a lathe? that works out because I only configured it for 2 axis. I also and configuring for a lathe, so you can look here at some sample nucleo configs ive been using.

I have weird situation in compiling.
I have downloaded latest modified staticZE repo.
Using mbed os 6.
Even without editing any file, compiled.bin file doesn't comes out of E-stop.
But your compiled .bin from repo, working.
Have yet to check IO's.