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???
03/06/07 19:33
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#134410 - Thanks for a patience reply
Responding to: ???'s previous message
First of all, thanks for being understanding and come out with such a patience reply.


Pin 3.1 is shared between port 3 and the UART TxD. Keep port bit 3.1 = 1 at all times, and it will work.


It was dumb of me not to figure it out earlier, but i found it know. Thanks for reminding :)


Close. The command should be
mov sbuf, #'A'
What you did was load sbuf with the address of the accumulator (0e0h)

Thanks for the clarification and pointing out the difference between the two method of input.



No, no, no, no.
The move instruction only works on one byte at a time. You will need to put your data in a buffer, and create a loop that will fetch one byte at a time and send it.


Again, this is a very clear explanation, and i fully understand what are you trying to say.



Not enough information. We need your oscillator frequency, and the desired baud rate. And, you are better off using timer 2's baud rate capability.


I am thinking to use the Timer 1 auto-reload mode to set up the baud rate instead of using oscillator frequency (it's 11.0592Mhz by the way) since the baud rate would be too large if i were to use the oscillator frequency as the timing method (i think) . As i havent mentioned earlier, i do not actually know what is supposed to be my desired baud rate. And, uhmm... i do not think my uC has Timer 2, it has only 2 timer (Timer 0 and Timer 1)

List of 72 messages in thread
TopicAuthorDate
Serial Communication Related Problem            01/01/70 00:00      
   partial answers            01/01/70 00:00      
      Oh yeah, i forgot about that            01/01/70 00:00      
   FIRST, THEN, THEN, THEN            01/01/70 00:00      
      A little bit of sarcasm as usual but often helpful            01/01/70 00:00      
         Proper baud rate...            01/01/70 00:00      
            baud rate            01/01/70 00:00      
               calculator            01/01/70 00:00      
            modem is autobauding            01/01/70 00:00      
               Noted            01/01/70 00:00      
   Some answers            01/01/70 00:00      
      Thanks for a patience reply            01/01/70 00:00      
   Nothing to add, but ...            01/01/70 00:00      
      i second(ed) that motion            01/01/70 00:00      
         My location profile?            01/01/70 00:00      
            with this known, it would do no good ...            01/01/70 00:00      
               Radio Shack            01/01/70 00:00      
                  Even so            01/01/70 00:00      
                     I can buy it from the local electronic shop            01/01/70 00:00      
            Sarcasm            01/01/70 00:00      
               I agree            01/01/70 00:00      
      Thanks for understanding and recommendation! - NT            01/01/70 00:00      
      More info            01/01/70 00:00      
         you need to understand the parameters.            01/01/70 00:00      
            "more valid" evidently means invalid            01/01/70 00:00      
            not quite            01/01/70 00:00      
               What a wonderful example that when total crap is s            01/01/70 00:00      
                  lesson            01/01/70 00:00      
            No, it doesn't            01/01/70 00:00      
   TxD pin to TxD pin?            01/01/70 00:00      
      dte-dce-dce-dte            01/01/70 00:00      
         Noted! Thanks!            01/01/70 00:00      
            same request question            01/01/70 00:00      
      Meaning of "Transmit"            01/01/70 00:00      
   same request question 2            01/01/70 00:00      
   Initial command sending code; help me take a look!            01/01/70 00:00      
      Make it simple for yourself            01/01/70 00:00      
         Why the need of circular buffer? Receiving?            01/01/70 00:00      
            polling versus interrupt            01/01/70 00:00      
               Check OK string at RXD or DCD at interupt?            01/01/70 00:00      
                  no good            01/01/70 00:00      
                     Voice mode only! No data communication.            01/01/70 00:00      
                        you are missing the basics            01/01/70 00:00      
                           NO carrier sent after DCD didn't found            01/01/70 00:00      
                              I do not agree            01/01/70 00:00      
                                 Interupt DCD signal for clear transmission            01/01/70 00:00      
                        For Voice Dialling            01/01/70 00:00      
                           and by the way            01/01/70 00:00      
                           Sorry for multiposting            01/01/70 00:00      
                           The ";" works but...            01/01/70 00:00      
                              ";" to return to idle state            01/01/70 00:00      
                              +++ with 3 seconds no modem activity            01/01/70 00:00      
                                 +++ escape sequence            01/01/70 00:00      
                                    Monkey See. Monkey Do.            01/01/70 00:00      
                                       Now monkey also understand?            01/01/70 00:00      
                                 Are you mistaken?            01/01/70 00:00      
                                    I think so            01/01/70 00:00      
            Circular buffers            01/01/70 00:00      
               Initial code for receiving modem response            01/01/70 00:00      
                  don't fiddle with the timer, let it run            01/01/70 00:00      
                     Understood, will run TR1 in global init, thx! - NT            01/01/70 00:00      
                  check this out, Eugene...            01/01/70 00:00      
                     Ah! Didn't know that! Thanks! -NT            01/01/70 00:00      
                     Code; modem commands & responses            01/01/70 00:00      
   V.250 (formerly V.25-ter) - get it free!            01/01/70 00:00      
   code,modem command and response            01/01/70 00:00      
   system froze when connected to hyperterminal            01/01/70 00:00      
      Your code...            01/01/70 00:00      
         It should not be a hardware problem since..            01/01/70 00:00      
            Not necessarily            01/01/70 00:00      
      Just taking a stab at it...            01/01/70 00:00      
         two 'ugly' guesses            01/01/70 00:00      

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