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???
06/05/06 18:49
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#117769 - Errr...
Responding to: ???'s previous message
Richard Erlacher said:
You can drive this cable directly from your MCU, as it's open-drain, a hookup requiring, at most, a few resistors and, maybe, a diode or two.

Plus, of course, the PS2 protocol.

I think that's the bit Mahmood is balking at?

You are free to do whatever you want, but all the PS/2 wedge interface requires in a one-off is wire.

and software - see above.

What's more, if you are using a PC, you can probably patch into the interrupt handlers for the mouse and get the information you want when you want it without any wiring at all.

Err.. not on anything Win-32 based!

Note even sure if you could still do that on Win-98?


List of 31 messages in thread
TopicAuthorDate
Port pins to control mouse buttons            01/01/70 00:00      
   also mouse button press detection            01/01/70 00:00      
   Questions            01/01/70 00:00      
      I agree with Richard            01/01/70 00:00      
         Not making a board from scratch            01/01/70 00:00      
            optoisolated FET            01/01/70 00:00      
               Optocoupler            01/01/70 00:00      
      Answers            01/01/70 00:00      
         How can its native protocol interfere?            01/01/70 00:00      
            This is nuts            01/01/70 00:00      
         Wedge it.            01/01/70 00:00      
            Makes Sense            01/01/70 00:00      
            In case it isn't clear enough ...            01/01/70 00:00      
               This is nuts II            01/01/70 00:00      
                  That is not how a mouse works.            01/01/70 00:00      
                  Your approach is too costly and awkward            01/01/70 00:00      
                     It's one off thing            01/01/70 00:00      
                        Now, I'd be the last one ...            01/01/70 00:00      
                           Errr...            01/01/70 00:00      
                              True enough, but ...            01/01/70 00:00      
                                 it will be our secret (shshshshsh)            01/01/70 00:00      
                                    Real Life?            01/01/70 00:00      
                                       I'm a big kid            01/01/70 00:00      
                                          Keeps us young I guess            01/01/70 00:00      
                                             Have you considered ...            01/01/70 00:00      
                                                It all depends            01/01/70 00:00      
                                                   It's not about making ME happy.            01/01/70 00:00      
                                                      Too busy winning games            01/01/70 00:00      
   USB?            01/01/70 00:00      
      usb IO port            01/01/70 00:00      
      usb IO port            01/01/70 00:00      

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