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I have alppullup which works fine in all tests using a simulated signal. It just wont work with the .5v signal comming from my computers' parallell port. Ralph
I am setting up a cnc router. Stepper drive board appears to be ok. Control signals come from a pc running a program called Mach3. This program creates step pulses and inclludes a driver for the pci port (parallel, d25). This pc runs a 3.3 v board. and all outputs from the port should run rail...
I am setting up a cnc router. Stepper drive board appears to be ok. Control signals come from a pc running a program called Mach3. This program creates step pulses and inclludes a driver for the pci port (parallel, d25). This pc runs a 3.3 v board. and all outputs from the port should run rail...
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