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08/28/05 13:35
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 		 #100209 - Serial RF with AT89C51 to AT89C51
Hi

I have recently bought TLP-434 and RLP-434 and I decided to experiment with it. So I wanted to implement directional serial data transmission from AT89C51 to AT8951 and my code from TX basically use the UART in order to transmit a data to the receiver where it use UART to capture the 8 bits. My both uC implement 2400 Baud.

There are two buttons in my transmitter circuit and I expected that red LED switch if I pressed the first button. The second button allows my blue LED switch on. Unfortunately the RF link was not very stable as LED didn't switch on straight away after pressing one of the button. Sometime the LED switched on without me pressing the button.

I have been informed that if I use bit-banging at the receiver instead of UART, would solve the problem. I don't know it is true or not.

Btw do you have serial bit-banging for the receiver in C? I would be very very grateful if you provide me the C asap because I have been struck with my project for nearly two weeks :-(

Max

List of 34 messages in thread
TopicAuthorDate
Serial RF with AT89C51 to AT89C51            01/01/70 00:00      
   Lineks ?            01/01/70 00:00      
   UARTs and ASK            01/01/70 00:00      
      Software driven UART - Bit-banging            01/01/70 00:00      
         Channel coding            01/01/70 00:00      
            Yes but...            01/01/70 00:00      
               What is the hardware UART not doing?            01/01/70 00:00      
                  Hardware UART            01/01/70 00:00      
                     RF links pose challenges, but anyway...            01/01/70 00:00      
                     Spend the money or do the hard work?            01/01/70 00:00      
                        So many, so often, forget that design is            01/01/70 00:00      
   Rendering            01/01/70 00:00      
      Me too !            01/01/70 00:00      
      nope, just like any other (IE)            01/01/70 00:00      
         Disappointed!            01/01/70 00:00      
            What is the purpose of "learning" our co            01/01/70 00:00      
            Sorry but            01/01/70 00:00      
            End of wrong stick?            01/01/70 00:00      
            Learning? Dealing with disappoinment            01/01/70 00:00      
            What you need to learn            01/01/70 00:00      
               Apology            01/01/70 00:00      
                  Recommendation            01/01/70 00:00      
                  A short backgrounder            01/01/70 00:00      
                     Missing the point            01/01/70 00:00      
   The wise men have spoken            01/01/70 00:00      
   UARTs, the last word Mr. Joshi            01/01/70 00:00      
      *Groan* Here is my inital code            01/01/70 00:00      
         Does it work ?            01/01/70 00:00      
            Does it work at all?            01/01/70 00:00      
         The Point.            01/01/70 00:00      
            why analyze how deep the water is before            01/01/70 00:00      
         TF2 needs to be cleared in interrupt            01/01/70 00:00      
         the right way to get help definitely is            01/01/70 00:00      
         Pinching a loaf            01/01/70 00:00      

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