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Andy Neil
01/08/10 02:25
Read: 212 times
Basingstoke
Uk


 
#172255 - "RS232" (sic?)
Responding to: Neil Kurzman'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      Poonam Kothawade      01/08/10 01:31      
   ther are lots of interfaces      Neil Kurzman      01/08/10 01:58      
      "RS232" (sic?)      Andy Neil      01/08/10 02:25      
         That is why i said type      Neil Kurzman      01/08/10 18:08      
      a slight difference of opinion      Erik Malund      01/08/10 07:43      
         I'm (probably) with Neil      Andy Neil      01/08/10 08:35      
            I do not, specifically if ...      Erik Malund      01/08/10 08:50      
               I thought you'd like that!      Andy Neil      01/08/10 09:33      
            I was looking from a code point of veiw      Neil Kurzman      01/08/10 18:14      
               if one was the best there would only be one.      Andy Neil      01/09/10 03:38      
               yes and no      Erik Malund      01/09/10 07:41      
      Lots of interfaces - Microwire; SPI; I2C      Andy Neil      01/08/10 08:31      
      parallel?      Maarten Brock      01/10/10 04:01      
   You may use whatever you like!      Andy Neil      01/08/10 02:18      
   I2C is serial communication.      Richard Erlacher      01/08/10 09:44      
      Already noted      Andy Neil      01/08/10 10:50      
         Sorry ... didn't mean to steal your thunder ...      Richard Erlacher      01/08/10 12:49      
   Is this (question) a Joke ...???      Kiran V. Sutar      01/09/10 12:25      
      Very tired of the "depends" response      Justin Fontes      01/10/10 00:41      
         Agreed...but this happens always...      Kiran V. Sutar      01/10/10 01:21      
         I think you missed the point!        Andy Neil      01/10/10 02:41      
            Re: 'Depends'..      Gopal Amlekar      01/10/10 06:53      
               it's typical ...      Richard Erlacher      01/10/10 08:18      
               All too common!      Andy Neil      01/10/10 08:52      
            FAQ isn't easy - flowchart not adequate      Per Westermark      01/10/10 07:12      
               Exactly!      Andy Neil      01/10/10 08:50      
            You wouldn't do it in everyday life - so why do it here?!      Andy Neil      01/10/10 09:00      
         Concrete enough?        Kai Klaas      01/10/10 13:31      
            Wow!      Andy Neil      01/10/10 16:28      
               Yes, for a while...      Kai Klaas      01/11/10 08:42      
         Well.. is this pretty good?        Justin Fontes      01/11/10 21:15      
            Still missing the point?      Andy Neil      01/12/10 03:41      
               Youre missing my point      Justin Fontes      01/12/10 10:48      
                  Exactly!!      Kai Klaas      01/12/10 11:12      
                  I see - but disagree      Andy Neil      01/12/10 11:21      
                  not 'demanding' but 'asking' is encouraged      Erik Malund      01/12/10 11:35      
                     Still often not possible to help...        Per Westermark      01/12/10 17:45      
                  I agree Justin..but...      Kiran V. Sutar      01/13/10 04:09      
                     Lots of usage details possible without giving product away      Per Westermark      01/13/10 08:29      
                     My answer was to be quiet!      Kai Klaas      01/13/10 08:35      
                  I will admit....      Justin Fontes      01/13/10 11:38      
                     That's why folks should search before posting!      Richard Erlacher      01/13/10 12:21      
   Please provide more details...      Anurag Mishra      03/22/10 07:06      
      Don't you think it's a bit late for that?!      Andy Neil      03/22/10 07:16      

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