USB 3 power, serial step-and-direction
timing tests
parts
DRV8428 motor controller
one node, 1/8 microstepping
host code, embedded code, video
one node, 1/2-1/256 microstepping
two nodes, 1/8 microstepping
host code, embedded code, video
three nodes, 1/8 microstepping, multiprocessing
host code, embedded code, video
i7-1070H laptop (6 cores, 12 threads), Ubuntu 20.04
htop shows 4 (virtual) cores in use (1 for alarm process, 3 for node processes):
four nodes, 1/8 microstepping, multiprocessing
host code, embedded code, video
four nodes, 1/8 microstepping, sequential
host code, embedded code, video
