I suggest if you are interested in this system you make
  a folder and drag over all the many future messages on this
  subject otherwise delete it.

This is all back ground stuff we need to know before
planing an EFI system.

Turns out Console.Write and Debug.Print take pretty
much the same time.

It is however about three times faster sending
out ASCII strings like 123, "how now brown cow"
than using CStr(integer number).

So the thing to do is constuct a long string of
the data you want to change and then send it out.
here is the construct for that:

long string = long string + new character

I also discovered an undocumented feature.

This will work "Debug.Print x" where x is an
integer. Not mentioned in the manual.
Simple but slow compared to sending ASCII numbers.

This program is sort of sending out a pulse width
which could control a fuel injector. I connected the
scope to pin 12. I triggered the scope on the rising
edge of the pulse. The sweep is set to .1 ms
per divison.

I am still working on the best way to do PWM however.


Paul Lamar