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???
01/25/05 03:49
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#85720 - Connect PC to AT89C52
Dear all members,
I am an amateur in working to mP but I like to play with it so much. Now i am trying to connect my PC to the AT89C52. The driver is MAX232. Unfortunately, the PC couldn't receive anything. When i checked the Pin 14 of MAX232, there was a signal but it is (-) level, compare to 0V. I didn't understand what happened?
Thanh you



List of 10 messages in thread
TopicAuthorDate
Connect PC to AT89C52            01/01/70 00:00      
   RS232 Signals            01/01/70 00:00      
      to Joe            01/01/70 00:00      
         Null Modem            01/01/70 00:00      
            To Joe again            01/01/70 00:00      
   how have you wired the MAX232 up?            01/01/70 00:00      
   Fundamentals of RS-232 Serial Comms            01/01/70 00:00      
   App note            01/01/70 00:00      
   Try this            01/01/70 00:00      
   link            01/01/70 00:00      

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