[Gmecm] Bench testing a GM waste-spark DIS ignition

[Darryl M Gilbert]

Hello: yes would have to be DOS or absolute code to take away any
operating system. Probably a cap and a resistor network could make a
differentiated outpus and closely mimick the sine you choose. Usually its
crossover you are looking for, it just so happens a reluctor put sout a
sine of sorts.I think its the crossover you are concerned about anyway.
It would be a fun thing to play with. I use to do a lot of that stuff in
control systems and CNC. anyway just a thought
Good luck
On Wed, 10 May 2006 16:05:23 -0400 "Tomas J. Sokorai Sch."
<tsokorai at xperts.cl> writes:
> On Wednesday 10 May 2006 11:44, Darryl M Gilbert wrote:
> > Should work. but I would use a bit from the parallel port, write 
> it in
> > plain ole basic, should be easy. Can poke to the port and control 
> any of
> > the 8 bits. It is also bi directional so you can use it to sense 
> stuff
> > also
> 
> The problem with this, is that you need analog circuitry to make the 
> AC signal 
> crossing the 0V with each pulse, to fully emulate the variable 
> reluctance 
> sensor output.
> And the other problem is to get a real accurate timing from a 
> program running 
> on a multitasking operating system (unless you run your parallel 
> program 
> under real DOS or a hard realtime OS) to try to simulate the crank 
> up to at 
> least 6000 RPM.
> 
> -- 
> Tomas J. Sokorai Sch.
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