> On Tue, 2011-01-18 at 13:32 -0800, Kirk Wallace wrote: > > The ATxmega runs on 3.6V max, so my current task is to design a parallel > port interface that can use 3 to 5V in, and feed ~3V to the xmega. After > the data link is worked out, the xmega can be used to produce a wide > range of signals (step/dir, PWM, 3-phase) and capture input (encoders, > ADC). Last year I work also with some 3.3V elektronics.
Output from parallel port: I measured the voltage of my parallel port and found, that it was only 3.6V. So I insert only a resistor into each data line. It works also without this resistor. Input to parallel port: Receiving the signals from 3.3V outputs was no problem. Joachim Franek ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
