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???
01/04/05 13:27
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#84304 - threads
Responding to: ???'s previous message
I think there must be some way to embedd operating syatem on mcu and use threads in it.Then it wont be a big problem.
...
Waiting for positive response.

You can wait till the cows come home for a positive response to this one.
for 4800 baud the bit time is 400 uS and the best response I have seen from an URTOS is something linke a millusecond. To get a noise resistant detection of 4800 baud you need a resolution of no less than ~50uS.


There may be many other devices but I have to care for many things in product, and still stuck to 89c51

"I have to care for many things" That is exactly why you may not be able to get by with a soft UART.


Erik




List of 27 messages in thread
TopicAuthorDate
Polling/Interrupt For Serial Input            01/01/70 00:00      
   bible time            01/01/70 00:00      
   Soft UART            01/01/70 00:00      
   Hardware?            01/01/70 00:00      
      SW UART is not a taboo!            01/01/70 00:00      
         yes...            01/01/70 00:00      
         think before you do            01/01/70 00:00      
   Use oversampling            01/01/70 00:00      
      soft UART            01/01/70 00:00      
      Half bits            01/01/70 00:00      
      Oversampling            01/01/70 00:00      
         It's not so bad            01/01/70 00:00      
            Oh yes it is!            01/01/70 00:00      
               Haven't read it completely?             01/01/70 00:00      
                  neither have I            01/01/70 00:00      
                     Sure you did not!            01/01/70 00:00      
                        did I miss it            01/01/70 00:00      
                           Problem displaying posts?            01/01/70 00:00      
                              sure that will work            01/01/70 00:00      
                                 NOT A PIC            01/01/70 00:00      
   Just forget 89c51 then.            01/01/70 00:00      
   @Erik            01/01/70 00:00      
      ...all said already.            01/01/70 00:00      
      OS? Threads?!            01/01/70 00:00      
      Appnote to read            01/01/70 00:00      
      threads            01/01/70 00:00      
         Problem Solved            01/01/70 00:00      

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