[Milsurplus] Radar simulator

[Military1944 at aol.com]

Whilst replying to another message on this topic I had a brain wave.
 
There is a set time between 1 revolution of the ppi display. 
 
It is simply a matter of timing, so, as the display unit provides a pulse  at 
0 deg (top dead centre) then I could simply use this to trigger the pc, and  
after given time periods the pc could send a blip down say a USB port and 
drive  the video i/p. 
 
I might have cracked it. 
 
The only snag I can now see is in the old days with Z80 and 6502 machine,  
programming was easy, even in machine code. I have no idea how to create a  
program to run under XP. So it seems I will need to solve one problem before I  
can solve the other problem. Oh dear!!
 
cheers, Ben. 

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