On 29 October 2010 19:32, Peter C. Wallace <p...@mesanet.com> wrote: > The 5I23 can work with the resolver interface card (7I49) but this would need > firmware modifications for DC exitation like your scale uses (sine and cosine > signals with no carrier)
At that point you could strip down my Arduino code to remove the PWM generation, take off the no-longer required filter/amplifier and simply keep the analogue sampling and arctan calculation. Then it would simply measure 6 voltages (sin and cos for three channels), calculate "angle" and output the results as quadrature pulses. You could re-jig for 16-bit A to D too (I have it at 10 bits for speed). Even if Chris is right that there is no interpolation, at $20 an Arduino is a very simple way to measure 6 analogue voltages, threshold them, and pass it to digital. -- atp ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
