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???
05/09/05 14:26
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 		 #93222 - Modem
Responding to: ???'s previous message
When the modem and PC talk, what handshaking are you using ?

Turn off flowcontrol in the modem with the appropriate command, and then try the MCU.

Steve

List of 26 messages in thread
TopicAuthorDate
interfacing serial modem with 89c51??            01/01/70 00:00      
   rs232 level converter.            01/01/70 00:00      
      interfacing serial modem with 89c51??            01/01/70 00:00      
   Modem Settings            01/01/70 00:00      
      interfacing serial modem with 89c51??            01/01/70 00:00      
         Read the modem manual!            01/01/70 00:00      
            interfacing serial modem with 89c51??            01/01/70 00:00      
               Evaluate what is different            01/01/70 00:00      
                  interfacing serial modem with 89c51??            01/01/70 00:00      
                     Modem            01/01/70 00:00      
   Rx Tx pins            01/01/70 00:00      
   interfacing serial modem with 89c51??            01/01/70 00:00      
      connecting the front end of two cars            01/01/70 00:00      
         Errr...what did I mention earlier?            01/01/70 00:00      
            interfacing serial modem with 89c51??            01/01/70 00:00      
               Still            01/01/70 00:00      
   Modem sinulator on PC            01/01/70 00:00      
      Protocol analyzer            01/01/70 00:00      
         interfacing external modem to at89c51            01/01/70 00:00      
            How do you know?            01/01/70 00:00      
   command Timing            01/01/70 00:00      
      command timming            01/01/70 00:00      
   I don't want to give any secrets away!            01/01/70 00:00      
      please help !!            01/01/70 00:00      
         SCOPE            01/01/70 00:00      
         STOP trying to fix it, learn what it is.            01/01/70 00:00      

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