I had an idea of a way to measure analogue voltages with EMC2 a few days ago.
It ought to be possible for a HAL module to send a sawtooth PWM signal on an output pin, and monitor one or more input pins. Externally a PWM-voltage conversion circuit and a bank of comparators would switch the input pins when the variable pwm-generated voltage was greater than the voltage to be measured. This is a fairly normal analogue voltage measurement technique, but puts the cleverness inside HAL, where EMC2 can see it. Sampling period would probably be several mS, but that is probably OK for many uses. -- atp The idea that there is no such thing as objective truth is, quite simply, wrong. ------------------------------------------------------------------------------ RSA(R) Conference 2012 Mar 27 - Feb 2 Save $400 by Jan. 27 Register now! http://p.sf.net/sfu/rsa-sfdev2dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
