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???
05/28/09 06:29
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#165654 - yes Black box
Responding to: ???'s previous message
yes its a black box, and manufacturer is out of businesses and it would be impossible to talk to them...


Do you mean that you have some existing unit that you need to communicate with?

Yes. you could just send data to the component, if its valid, then it will light-up, if not, no reaction,

What 2-byte sequence?

it has 16 bytes of stream, i know where the data is from or how to generate it, but the last 2byte which i think the CRC, i could not decipher the sequence if its the right bytes.


If you are simply trying to implement an existing protocol, that really doesn't matter - you just have to implement whatever the protocol requires!

sorry but i didn't get the idea.

List of 23 messages in thread
TopicAuthorDate
UART encryption algorithm            01/01/70 00:00      
   Do you really mean "encryption"?            01/01/70 00:00      
      Adler-32 alwas an alternative            01/01/70 00:00      
         xmodem?            01/01/70 00:00      
   Nothing magic            01/01/70 00:00      
      Series of mathematical routine.            01/01/70 00:00      
         PSX Memory card in example...            01/01/70 00:00      
            Just CRC            01/01/70 00:00      
               CRC encrypt?            01/01/70 00:00      
                  Describe your problem - not how you think of solving it            01/01/70 00:00      
                     why weak? --my problem            01/01/70 00:00      
                        More on CRC            01/01/70 00:00      
                           Yes thats it(i missed YOUR POST)            01/01/70 00:00      
                              Few 16-bit CRC combinations            01/01/70 00:00      
                                 16 combination?            01/01/70 00:00      
                                    Everything on Google            01/01/70 00:00      
                                 You forgot some            01/01/70 00:00      
                                    Most, not all            01/01/70 00:00      
                        Are you trying to copy an existing protocol?            01/01/70 00:00      
                           yes Black box            01/01/70 00:00      
                              You really should have said that in the first place!            01/01/70 00:00      
                                 CRC with in different colors?            01/01/70 00:00      
            pls explain            01/01/70 00:00      

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