2014-09-15 07:23 AM
I'm investigating using the L6470 for an multi-axis application. Please let me now if it is possible using SPI to position multiple motors according to a motion profile/position table at constant speed. i.e. implementing G-code control
#l64702014-09-20 01:47 PM
Probably not up to the task. To do 2 or 3 axis interpolation you need to do it in a front end program to calculate pulse distribution and velocity smoothly, such as the bregenhams algorithm . Mach3 used a fixed speed 'conveyer belt' (fifo) that he drops step pulses on a certain distance apart. The trajectory is all preplanned .
The only thing you could do with SPI is maybe point to point drilling. Larry