micro wire-EDM progress
Posted by
Graham Stabler
on 2005-11-19 15:34:54 UTC
Just to report that I can now record the step and direction pulses
from the parallel port to a multimedia card. I need to clean the
program up a bit and add some error checking and once that is done I
will work on the "player" part.
I ended up defining one of the pins as a program pin, you can set this
high at the start of your gcode and low at the end, it tells the pic
when to record the pulses. I am only running the PIC at 4Mhz, I'll
get a 20Mhz osc and try to determine the maximum pulse rates that can
be recorded.
My wiki is here http://www.indoor.flyer.co.uk/edmwiki.htm
Graham
from the parallel port to a multimedia card. I need to clean the
program up a bit and add some error checking and once that is done I
will work on the "player" part.
I ended up defining one of the pins as a program pin, you can set this
high at the start of your gcode and low at the end, it tells the pic
when to record the pulses. I am only running the PIC at 4Mhz, I'll
get a 20Mhz osc and try to determine the maximum pulse rates that can
be recorded.
My wiki is here http://www.indoor.flyer.co.uk/edmwiki.htm
Graham