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???
07/13/04 02:30
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#74120 - RE: Control multiple device on one serial?
Responding to: ???'s previous message
Jason NBK said:
I am actually controlling 2 modems. One GSM modem and one line modem

Well, you would've saved a whole lot of people a whole lot of time if you'd said that in the first place!

Could you just use two RS232 transceivers, and just shut down the one you're not currently using?

Or, if your RS232 transceivers don't have shutdown, just multiplex them onto your 8051's Rx & Tx lines.

Or, connect one of them to a Soft UART.

Or, use an I2C (or similar) dual UART.

Or,...

List of 18 messages in thread
TopicAuthorDate
Control multiple device on one serial?            01/01/70 00:00      
   RE: Control multiple device on one serial?            01/01/70 00:00      
   Multiprocessor Mode?            01/01/70 00:00      
   RE: Control multiple device on one serial?            01/01/70 00:00      
   RE: Control multiple device on one serial?            01/01/70 00:00      
      RE: Control multiple device on one serial?            01/01/70 00:00      
         RE: Control multiple device on one serial?            01/01/70 00:00      
         It must be Addressable!            01/01/70 00:00      
         RE: Control multiple device on one serial?            01/01/70 00:00      
            RE: Control multiple device on one serial?            01/01/70 00:00      
               RE: Control multiple device on one serial?            01/01/70 00:00      
   RE: Control multiple device on one seria            01/01/70 00:00      
      RE: Control multiple device on one seria            01/01/70 00:00      
   RE: Control multiple device on one seria            01/01/70 00:00      
   RE: Dumb devices?            01/01/70 00:00      
      RE: Dumb devices?            01/01/70 00:00      
         RE: Dumb devices?            01/01/70 00:00      
            RE: Dumb devices?            01/01/70 00:00      

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