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???
07/12/06 13:13
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 		 #120089 - Power didn't tell
Responding to: ???'s previous message
Hi Andy,

My keyboard has a standard USB connector. When I need to connect to a PS2 port, I will attach a USB to PS2 adaptor. We don't have any electronic inside the adaptor. It just route the 4 signal pin from the USB connector to the PS2 connector. Now, when I plug the keyboard into the PS2 port, how can I know it is PS2 port, not a USB port. I can look at the power line. But the power line only tell me it is 5V. It didn't tell me this 5V is from USB or PS2.


List of 28 messages in thread
TopicAuthorDate
Auto-detecting USB and PS2            01/01/70 00:00      
   Power            01/01/70 00:00      
      Power didn't tell            01/01/70 00:00      
         So it's on the same connector ?            01/01/70 00:00      
            I will try            01/01/70 00:00      
            Too long to detect            01/01/70 00:00      
            nope            01/01/70 00:00      
         Mechanical solution            01/01/70 00:00      
            Cable is fixed            01/01/70 00:00      
               How to do it.            01/01/70 00:00      
                  USB Expert            01/01/70 00:00      
            Why not ...            01/01/70 00:00      
         why not put the 'intelligence' into the adapter            01/01/70 00:00      
            Cost/complexity issues            01/01/70 00:00      
               then go the other way            01/01/70 00:00      
                  Still need hardware            01/01/70 00:00      
                     you\'ll need that anyhow, how else?            01/01/70 00:00      
            Agree with Chris            01/01/70 00:00      
               Which is why I suggested Cypress            01/01/70 00:00      
      float to ascii            01/01/70 00:00      
         Start a New Thread and ask again            01/01/70 00:00      
         start a new thread!            01/01/70 00:00      
   Doesn't seem to hard            01/01/70 00:00      
      D+ and D- is not differential at the begining            01/01/70 00:00      
      nope, II            01/01/70 00:00      
   re: autodetect            01/01/70 00:00      
   I bought on of these at radio shack.            01/01/70 00:00      
      speed detect            01/01/70 00:00      

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