On 14 March 2010 19:49, Slavko Kocjancic <[email protected]> wrote: > I have one parallel port on my laptop computer. Here is no way to put > another one. So I just wonder if someone was already try to use-make EPP > port expander.
The Mesa 7i43 does so much more than a simple expander that at $75 it seems a more rational choice, I would have thought. (48 IO pins, on-board pwmgen, stepgen and encoder tracking). Also, unlike your proposed multiplexer, it is already supported by EMC2 If all you want is to add a couple of pins, then you can play around with binary patterns rather than individual pins, I did this with relays to make 2 IO lines on the P-Port handle off/mill-clockwise/lathe-clockwise/lathe-anticlockwise There are HAL components that can be used to demux the patterns into individual signals (or vice-versa) if you can figure out a way to handle the hardware side. -- atp ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
