SynthModules

Based on a conversation with Brice, I started experimenting with the
s_out pin.  Adding a 4k7 resistor between pins 2 and 5 of a 9 pin
D-sub connector provides another output that I now use to drive my
lcd display module.  The RS-232 driver on the AtomPro 'steals' -12V
from serial-in for the negative reference for serial-out.  Since
I'm not using serial-in there is no ground reference.  The 4k7
resistor provides an adequate pull down to provide a reasonably fast
serial signal. I use 38400 baud to drive the display (I may
experiment with increasing this to 57600 baud).  Now I can use all
my PSIM outputs and drive the lcd display from the programming port.
I just had to make a 9 pin D-sub to 1/4" cable and add the resistor
in the connector shell.

Dave

--- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:
> --- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote:
> Finished my LCD module today.  Took just a handful of parts
> and ~550 lines of code.  Photos at
> http://modularsynthesis.com/display/display.htm