I finally got to do a little troubleshooting and here’s what I found: Key response on the keypad is never as fast as the on-screen UI but it is consistent. I’m guessing there’s about a 100-300 ms delay but that’s just a guess. Could this delay be due to the fact that this is a scanning keypad? What is the scan rate on
Once the inverter starts, I get a LOT of noise on the SmartSerial lines. The noise voltage is around 4v as measured from the 7i73 ground but it spikes to higher than that. Frequency is about 40khz but it’s not consistent. The noise on the 5v power supply line to the 7i73 is minimal. The 7i73 and all its connected switches are grounded only through the board’s connection to the 7i96 board. Would a shielded ethernet cable help? > On Jul 31, 2020, at 9:17 AM, andy pugh <bodge...@gmail.com> wrote: > > On Fri, 31 Jul 2020 at 15:15, Peter C. Wallace <p...@mesanet.com> wrote: > >> Also even with default sserial error management you could only have >> 10 servo thread cycles (10 ms with a 1 ms servo thread) of delay >> due to failed transactions before a sserial error popup would occur. > > Maybe noise on the keyboard itself? Is the keycode pin a single clean > transition? > > -- > 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 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
