vindar
Well-known member
Hi,
I am currently designing a Rubik's cube solving robot (not very original I know
). Anyway, I built a robot using a Pi-zero W but now I want something without the overhead of a full linux distro so this should be a perfect job for a Teensy 4.1... Therefore I ported kociemba's (beautiful) algorithm to Teensy 4.1.
The original code is here.
It turns out that the results are really impressive ! Solving a cube (in at most 24 moves) is about 25% faster on average on the Teensy 4.1 than it is on the Pi Zero with the same C code! Admittedly, I did try to optimize memory access for the moves cache tables on the teensy and not on the pi-zero and I am also running the teensy overclocked to 816mhz but it is still really impressive! That MCU is a beast
If anyone is interested, the port is available on github . The computation requires 4.3MB of flash memory to hold the pre-computed tables and, optionally, about 730Kb of RAM to improve cache access.
I am currently designing a Rubik's cube solving robot (not very original I know
). Anyway, I built a robot using a Pi-zero W but now I want something without the overhead of a full linux distro so this should be a perfect job for a Teensy 4.1... Therefore I ported kociemba's (beautiful) algorithm to Teensy 4.1. The original code is here.
It turns out that the results are really impressive ! Solving a cube (in at most 24 moves) is about 25% faster on average on the Teensy 4.1 than it is on the Pi Zero with the same C code! Admittedly, I did try to optimize memory access for the moves cache tables on the teensy and not on the pi-zero and I am also running the teensy overclocked to 816mhz but it is still really impressive! That MCU is a beast
If anyone is interested, the port is available on github . The computation requires 4.3MB of flash memory to hold the pre-computed tables and, optionally, about 730Kb of RAM to improve cache access.
