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???
02/16/10 16:38
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 		 #173203 - A confession
Responding to: ???'s previous message
Andy Neil said:
Steve M. Taylor said:
there's these things
MAX 3140
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2033

That's neat: and SPI-to-UART chip with built-in RS-485/RS-422 drivers and receivers!

They also do ones with built-in RS232 transceivers:
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2052

must remember them...



Yes I started out looking for that old part which was just the UART on its own. What a neat unit, and not very expensive either. Saves a lot of messing around.

Steve


List of 31 messages in thread
TopicAuthorDate
Bus between modules            01/01/70 00:00      
   Questions            01/01/70 00:00      
      RS-485?            01/01/70 00:00      
         RS-485 or CAN would both work            01/01/70 00:00      
      Answers to questions            01/01/70 00:00      
         Check sum not good enough            01/01/70 00:00      
            Noise            01/01/70 00:00      
               has to work is on stage (music).            01/01/70 00:00      
                  MIDI/DMX            01/01/70 00:00      
                     capacitance, capacitance, capacitance            01/01/70 00:00      
                        I2C feasible ....            01/01/70 00:00      
         Replies to quesitons in answers!            01/01/70 00:00      
         UART            01/01/70 00:00      
            SPI-to-UART with Drivers!            01/01/70 00:00      
               A confession            01/01/70 00:00      
            Not necessarily            01/01/70 00:00      
               Controller type            01/01/70 00:00      
                  I just have [not] decided yet.            01/01/70 00:00      
                     Chips with two UARTS            01/01/70 00:00      
                         not true            01/01/70 00:00      
                           P89LPC952            01/01/70 00:00      
                              Let's assume I'm going to use a UART.            01/01/70 00:00      
                              did you try here?            01/01/70 00:00      
   I2C Could be made to work.            01/01/70 00:00      
      RE: SMBus            01/01/70 00:00      
         so does SMB            01/01/70 00:00      
            For the sake of completeness            01/01/70 00:00      
               not really            01/01/70 00:00      
                  I see            01/01/70 00:00      
                     Timeouts and Hold Times.            01/01/70 00:00      
                        Specifications!            01/01/70 00:00      

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