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???
04/04/06 14:47
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 		 #113611 - 80c51 Software UART
Responding to: ???'s previous message
Here's an old Philips Application note on Software UART

http://www.standardics.philips.com/support/d.../an446.pdf

you may need some addaption to your specific 80c51 controller


JG


List of 32 messages in thread
TopicAuthorDate
Interfacing 16550 to 80c51            01/01/70 00:00      
   use an SPI UART            01/01/70 00:00      
      Why not an 16550            01/01/70 00:00      
         parallel - serial vs serial -serial            01/01/70 00:00      
         I hope you have the datasheet            01/01/70 00:00      
            well, in this case            01/01/70 00:00      
               That's my point ...            01/01/70 00:00      
                  if he wants to make crap, help him make            01/01/70 00:00      
                     There's no accounting for taste.            01/01/70 00:00      
                        External uart            01/01/70 00:00      
                        a LPC            01/01/70 00:00      
                           Well, that's an option, BUT ...            01/01/70 00:00      
                              My opinion: (1) nor valid (FedEx) (2) un            01/01/70 00:00      
                                 this may be wandering off topic, but            01/01/70 00:00      
                                    many            01/01/70 00:00      
                                       Tested or "seemed to work" ?            01/01/70 00:00      
                                          "try it and ship it"            01/01/70 00:00      
                                             where you sit determines what you see            01/01/70 00:00      
                                                I think apples and oranges            01/01/70 00:00      
                                                   that's the source of the trouble ...            01/01/70 00:00      
   SPI or I2C to UART            01/01/70 00:00      
   Pins, Area, EMI            01/01/70 00:00      
      can't you just specify 2 stop bits?            01/01/70 00:00      
         no i cant            01/01/70 00:00      
            Some possibilities            01/01/70 00:00      
               80c51 Software UART            01/01/70 00:00      
            Why not?            01/01/70 00:00      
               is this not being one of the "folks" Quo            01/01/70 00:00      
   what device does not like 2 stop bits?            01/01/70 00:00      
      Just a guess ...            01/01/70 00:00      
   Schematic for 16550/8051            01/01/70 00:00      
      16550/8051 example            01/01/70 00:00      

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