On Tue, 17 Mar 2020 22:31:50 -0500, in gmane.comp.hardware.beagleboard.user
Charles Steinkuehler <[email protected]>
wrote:
>This depends a lot on what sort of machine you're trying to drive. A
>"standard" CNC machine with step/dir typically needs a DB25 (aka:
>parallel port) with buffered signals you can connect to external stepper
Just a comment... The DB-25 connector was used for RS-232 SERIAL prior
to the mass adoption of the DB-9... Besides also being used as the computer
end of a Centronics parallel printer cable (wired quite differently).
--
Dennis L Bieber
--
For more options, visit http://beagleboard.org/discuss
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