Re: Newcomer

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Brad Woolley <brad@r...>
wrote:

> Hi,
>
> Sorry for the confusion, with my PIC controller through a

serial

> port the PC sends an ASCII string to the PIC, which converts the

numbers to

> steps,direction etc and then controls the motors, I have never

interfaced

> with a parallel port so I am probably looking too deep, I don't

know what

> KCam outputs to the parallel port, is it a 'string' type command

or simply

> raising and lowering the pins ?.

The later is correct. KCAM set the direction bit (on 1 parallel
port pin), and pulse the step bit (on another port bit). This is
done for every axis. If you use a PIC, you need to poll those port
bits and convert it to suit your driver configuration.

Hope this help.