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???
02/26/05 12:25
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#88532 - Don't guess
Responding to: ???'s previous message
Rhody Lugo said:
I already have probed the com port, with my old mouse does function well, the cable is about 0.5 mts, but TxD and RxD are not twisted pair, would be that the problem, but on win 98 it worked fine.

Don't guess, probe at your 8051's pins with everything connected - like Steve said:
http://www.8052.com/forum/read.phtml?id=88434

Or, do the full loop-back right through your target hardware as I suggested:
http://www.8052.com/forum/read.phtml?id=88443


List of 26 messages in thread
TopicAuthorDate
UART doesn't work in XP HyperTerminal?            01/01/70 00:00      
   Settings ?            01/01/70 00:00      
      It has Identical settings on XP            01/01/70 00:00      
         Turn Off handshaking            01/01/70 00:00      
            Port com does function fine            01/01/70 00:00      
               What LED?            01/01/70 00:00      
   Com port            01/01/70 00:00      
      are you?            01/01/70 00:00      
         The max232 is not needed?????            01/01/70 00:00      
            It *is* needed!            01/01/70 00:00      
      Mainboard's com is right            01/01/70 00:00      
         loopback            01/01/70 00:00      
         Check            01/01/70 00:00      
            Check            01/01/70 00:00      
               Sure            01/01/70 00:00      
                  but            01/01/70 00:00      
            I already probed the port, cable 0.5mts            01/01/70 00:00      
               Don't guess            01/01/70 00:00      
         too much confidence            01/01/70 00:00      
            Waaaaaaaaay too much confidence !!            01/01/70 00:00      
   it would be some drivers missing            01/01/70 00:00      
      Some Drivers Really Missing            01/01/70 00:00      
      XP            01/01/70 00:00      
      Do the loopback!            01/01/70 00:00      
   Try one more.            01/01/70 00:00      
      Really??            01/01/70 00:00      

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