On Tuesday, 19 April 2022 07:59:12 EDT andy pugh wrote: > On Tue, 19 Apr 2022 at 03:51, gene heskett <ghesk...@shentel.net> wrote: > > So by default. a bit is .142578125 volts. Hummm. Seems odd. I would > > have expected $00 to $FF as output. > > It does on the FPGA and the interface, but the driver converts to > floating point for convenience and then the default scaling is to > volts.
Can I access it raw as the hex value? volts doesn't really represent what I need to work with. Although I assume the fp in volts does increment by the value of 1 bit change, so that can be worked around. How would I go about determining the resistor value to feed that input from nominally 42.3 volts to just bring it to full scale? My additional connections would "sink" it from there. I have a small voltage applied to that input, but a halmeter is only reading a flicker of random noise at about 1 second intervals, zero the rest of the time. Thats likely a clue I'm doing something wrong, but what? I did get the flood button to appear in the axis gui, which is what I will use to anable the mister air seperately from the mister pump, and will interlock the pump so air has to be flowing before the pump can be started. 'Twould be nice if I could relabel that radio button from flood to air, can it be? I did just find the pwmgen's pins, which despite the fact that they steal the 7i76's stepgen-4 pins, are addressed in the 5i25 as pwmgen.00.etc. No mention of that in the 7i76 docs I assume because the pwmgens are actually in the 5i25. Is pwmgen.01 then the same pins on the 5i25's p2? And I can "setp hm2_5i25.0.pwmgen.00.scale" and "value" parameters, but no output pins show up? Should they not be the 5i25's GPIO-8 and GPIO-9 which then show up as dir4+- and step4+- on TB3 of the 7i76? setting num_pwmgens=2 makes it so, so that question is answered. Confusing, this having a documentation wall between the parent board and the daughter board. Thank you Andy. Stay well please. > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
