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schematics:snes_apu_on_pc [2005/12/28 11:25]
71.52.46.199
schematics:snes_apu_on_pc [2019/08/27 20:45] (current)
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 [[APU pinout]] [[APU pinout]]
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 ==== Software ==== ==== Software ====
  
  
-I first tried using CaitSith2 software, but it did not work. By looking at the signals with an oscilloscope,​ I deduced that the computer did not wait long enough for the logic levels to settle(rising was slow, this is probably due to the way my parallel port is designed). Fortunately,​ the source code was available. Adding small delays at the right places made it work. 
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-The user interface is written in VB, and the low level parts are in C/C++ in a separate dll. I had to recompile the dll to add the deleays. If you get errors such as "Error Loading SPC", try my dll after confirming that everything is wired correctly. 
  
 I first tried using CaitSith2 software, but it did not work. By looking at the signals with an oscilloscope,​ I deduced that the computer did not wait long enough for the logic levels to settle(rising was slow, this is probably due to the way my parallel port is designed). Fortunately,​ the source code was available. Adding small delays at the right places made it work. I first tried using CaitSith2 software, but it did not work. By looking at the signals with an oscilloscope,​ I deduced that the computer did not wait long enough for the logic levels to settle(rising was slow, this is probably due to the way my parallel port is designed). Fortunately,​ the source code was available. Adding small delays at the right places made it work.
 
 schematics/snes_apu_on_pc.txt ยท Last modified: 2019/08/27 20:45 (external edit)
 
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