Real-time SPI on beaglebone black and raspberry pi 0,1,2,3,4,5
====

preempt_rt-evl is a real-time spi core for linux 6.1 with preempt rt 

Disable spi-omap2-mcspi/spi-bcm2835 and spidev drivers from the kernel menu

 > Device Drivers > EVL device drivers > Real-time SPI master drivers 
  │ │                                   <*> Support for BCM2835 SPI 
  │ │                                   [*] Enable SPI core debugging features

connect miso to mosi and run spitest-laur

If you use this work, please cite the following paper:
L. -C. Duca, A. Duca and A. -S. Lup, 
"Real-time Linux drivers and latency evaluation system for TI OMAP4 mcSPI peripheral," 
2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE), 
Istanbul, Turkey, 2020, pp. 1-4, doi: 10.1109/ICECCE49384.2020.9179286.

For more info, please contact me:
laurentiu [dot] duca [at] gmail [dot] com