Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
08/03/11 11:45
Read: times


 		 #183171 - a good start would be ...
Responding to: ???'s previous message
I just wanted it for the purpose of learning
a good start would be to alternating transmit high and low. This should display 'U' on the PC. When that works, you know the timing is right and you can go on to work on sending characters.

Erik


List of 30 messages in thread
TopicAuthorDate
bit banging program touble            01/01/70 00:00      
   why?            01/01/70 00:00      
      i need a second serial port            01/01/70 00:00      
         something like this , without any warranty :            01/01/70 00:00      
         a good start would be ...            01/01/70 00:00      
            only 3 'U's are commingout of 100            01/01/70 00:00      
               Separate the characters and look with scope            01/01/70 00:00      
                  finally it worked            01/01/70 00:00      
                     uart receiver in software            01/01/70 00:00      
   No I/O or No Timing            01/01/70 00:00      
      "No I/O or No Timing"            01/01/70 00:00      
   Someday you will learn...            01/01/70 00:00      
      this isnt the actual code            01/01/70 00:00      
         Well then another lesson to learn...            01/01/70 00:00      
   Assembler Manual will help you            01/01/70 00:00      
      assembler manual?            01/01/70 00:00      
   Data is 8 Bit??            01/01/70 00:00      
   Bit width timing and timer TH0,TL0 Values            01/01/70 00:00      
      checked values for TH0 and TL0            01/01/70 00:00      
         keil baud rate Calculator not for bit bang            01/01/70 00:00      
   LSB first            01/01/70 00:00      
   now reception....            01/01/70 00:00      
      1) din = din >> 1            01/01/70 00:00      
         working at 1200 baud            01/01/70 00:00      
            delayRS()            01/01/70 00:00      
               why do i have to sample stop bit            01/01/70 00:00      
                  Need not, but should            01/01/70 00:00      
                  because            01/01/70 00:00      
                     Much to a real UART            01/01/70 00:00      
                  1.5 bit delay            01/01/70 00:00      

Back to Subject List