> A simple Voltage to frequency converter would probably do, for example the > AD654 in 8 pin DIP is probably quite a better than required. (500KHz max > frequency, .03% linearity) > I would count the frequency with one of the spare encoder counters (set up > for > up/down mode) and use count difference accumulated over some number of sample > periods (to average out the sample period jitter)
I am using the Hostmot-4 config which can provide 50 kHz PWM output. Can up/down encoder counter mode be specified from the EMC driver? Or are some VHDL changes needed? I assume I would connect the AD654 to an encoder A-channel and just ground the B-channel ? AW ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
