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???
01/08/10 08:25
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 		 #172255 - "RS232" (sic?)
Responding to: ???'s previous message
Neil Kurzman said:
Rs232 type is the simplest

Note that "RS232" defines a specific set of voltages and other such characteristics - "RS232" is not synonymous with "asynchronous serial".

I presume you actually mean the UART (asynchronous serial) interface?

For just 2 chips in the same box (especially where I2C is an option), you probably don't want to go to the trouble of converting the UART's logic-level signals to & from RS232.

SPI is next then I2C...

You could also look at the shift-register mode of the 8051's serial interface;

Or just bit-bang something of your own devising - possibly using only a single processor pin...


List of 44 messages in thread
TopicAuthorDate
Connecting two 8051s            01/01/70 00:00      
   ther are lots of interfaces            01/01/70 00:00      
      "RS232" (sic?)            01/01/70 00:00      
         That is why i said type            01/01/70 00:00      
      a slight difference of opinion            01/01/70 00:00      
         I'm (probably) with Neil            01/01/70 00:00      
            I do not, specifically if ...            01/01/70 00:00      
               I thought you'd like that!            01/01/70 00:00      
            I was looking from a code point of veiw            01/01/70 00:00      
               if one was the best there would only be one.            01/01/70 00:00      
               yes and no            01/01/70 00:00      
      Lots of interfaces - Microwire; SPI; I2C            01/01/70 00:00      
      parallel?            01/01/70 00:00      
   You may use whatever you like!            01/01/70 00:00      
   I2C is serial communication.            01/01/70 00:00      
      Already noted            01/01/70 00:00      
         Sorry ... didn't mean to steal your thunder ...            01/01/70 00:00      
   Is this (question) a Joke ...???            01/01/70 00:00      
      Very tired of the "depends" response            01/01/70 00:00      
         Agreed...but this happens always...            01/01/70 00:00      
         I think you missed the point!            01/01/70 00:00      
            Re: 'Depends'..            01/01/70 00:00      
               it's typical ...            01/01/70 00:00      
               All too common!            01/01/70 00:00      
            FAQ isn't easy - flowchart not adequate            01/01/70 00:00      
               Exactly!            01/01/70 00:00      
            You wouldn't do it in everyday life - so why do it here?!            01/01/70 00:00      
         Concrete enough?            01/01/70 00:00      
            Wow!            01/01/70 00:00      
               Yes, for a while...            01/01/70 00:00      
         Well.. is this pretty good?            01/01/70 00:00      
            Still missing the point?            01/01/70 00:00      
               Youre missing my point            01/01/70 00:00      
                  Exactly!!            01/01/70 00:00      
                  I see - but disagree            01/01/70 00:00      
                  not 'demanding' but 'asking' is encouraged            01/01/70 00:00      
                     Still often not possible to help...            01/01/70 00:00      
                  I agree Justin..but...            01/01/70 00:00      
                     Lots of usage details possible without giving product away            01/01/70 00:00      
                     My answer was to be quiet!            01/01/70 00:00      
                  I will admit....            01/01/70 00:00      
                     That's why folks should search before posting!            01/01/70 00:00      
   Please provide more details...            01/01/70 00:00      
      Don't you think it's a bit late for that?!            01/01/70 00:00      

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