DSP and all that jazz
It turns out Analog Devices buried their 21xx DSP mcu into motor controller version in a SOIC-28 package.
I trawled the internet and found an archive of the software tools to program and load software onto these toys.
The chip (admc32x and admcf32x) are still available for a couple of dollars a pop, though they are no longer produced.
Moreover, there are more modern turnkey chips out there (see Allegro Microsystems A4960 itself obsolete 😉 so why bother.
Pure arse sentimental value.
I coded on these 21xx and 21xxx chips yonks ago.
Fairchild has a motor control chip that can drive the Isense line. Just needs work on algorithms 😉
Turns out there are about 20 application notes you can grab off the web for these chips that talks about the nuances of motor control.
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