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???
06/22/06 19:50
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 		 #118881 - A resounding NO. I use synchrono
Responding to: ???'s previous message
Since the 805x serial channel is not only Asynchronous, it's not a UART. I'm not sure what it is, but it's not a UART, though it can function as one, with some limitations, perhaps.
If you use the RCAP, timer 2 is not a timer. Let us not get into making every darn name that match in 99% of all cases need an appendix. I'd hate if every darn time 'UART' appear in "the bible" it was replaced by "UART except in mode 0". Genauigkeit can hurt.

As for that ultra-high RS-485 ASYNC at 460bps I'm not that slow, it is 460kbps you're wasting several bits per character in ASYNC format. Wouldn't you rather have all the bandwidth at your disposal?
A resounding NO. I use synchronous (SPI) "inside the box" for point to point but never outside. Asybchronous has many advantages for distance transmit. I can easily live with the "wasted" 4 bits to gain the advantages of a 9 bit RS485 data bus for the typically 5 devices on the bus.

erik

List of 34 messages in thread
TopicAuthorDate
74hc595/597 connection with c51            01/01/70 00:00      
   Any available port pin            01/01/70 00:00      
   I'd suggest you read the datasheet            01/01/70 00:00      
      little more info as u require richard            01/01/70 00:00      
         start it simple and stupd            01/01/70 00:00      
   bit-bang            01/01/70 00:00      
      problem is ...            01/01/70 00:00      
         talking about standard '51...            01/01/70 00:00      
            That's why I want to "fix" it ...            01/01/70 00:00      
         there is'nt so why do you proselytize f            01/01/70 00:00      
            PC's are async, Mode-0 is not            01/01/70 00:00      
               I know that, but 99.17% of all '51 UART            01/01/70 00:00      
                  Do you know what UART means?            01/01/70 00:00      
                     A resounding NO. I use synchrono            01/01/70 00:00      
                        SPI??? Is that in the "bible"            01/01/70 00:00      
                           no, it is not - but it is a very well de            01/01/70 00:00      
                              You're well into nonsense, now, Erik            01/01/70 00:00      
                              you just ignore the real reason            01/01/70 00:00      
                                 This may be a valid topic, but not here.            01/01/70 00:00      
                                    Whenever you use shift registers for I/O            01/01/70 00:00      
                                       Doesn't SPI have a bunch of "features?"            01/01/70 00:00      
                                          yes, we ARE mixing, both threads touch s            01/01/70 00:00      
                                             I don't want to confuse the O/P ...            01/01/70 00:00      
                                                that would be wrong            01/01/70 00:00      
                                                   I think we've lost the O/P            01/01/70 00:00      
                           this may be the answer to your 'prayers'            01/01/70 00:00      
                              Thanks, but which prayers are those?            01/01/70 00:00      
                                 those for a fast synchronous communicati            01/01/70 00:00      
                                    I don't want to use a commercial chip            01/01/70 00:00      
                                       why not            01/01/70 00:00      
                                          If I want to use SPI, I'll build it in            01/01/70 00:00      
                  Do you know what UART means?            01/01/70 00:00      
                     ^%$#@! I didi it again!            01/01/70 00:00      
   Depends on your needs...            01/01/70 00:00      

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