Thread: variable into 1 bit??

  1. #1
    Registered User
    Join Date
    Oct 2006

    variable into 1 bit??

    if I have a 16 bit variable (number) and I try to send it out one bit at a time on RCO (the first bit of a register also the data line) will it work as I intend it??

    example: *Note RC0 is first bit of register...


    RCO=number >>1;
    etc ...

    //end code

    if not... any other simple suggestions??

  2. #2
    Registered User
    Join Date
    Aug 2005
    Hard to tell if that would work.
    If RC0 is supposed to be only one bit then it might be better to use
    RC0 = number & 1;
    RC0 = ( number >> 1 )& 1;
    Anyway, using a loop would improve the solution.

  3. #3
    Just Lurking Dave_Sinkula's Avatar
    Join Date
    Oct 2002
    Quote Originally Posted by theeld
    if not... any other simple suggestions??
    What device? Do you have to bit-bang it or are there available peripherals?
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  4. #4
    ATH0 quzah's Avatar
    Join Date
    Oct 2001
    C can't just read one bit. So if your program is written in C, (whatever's reading on the other end) the smallest you're sending across is going to be one byte, or rather, a char (CHAR_BIT in size). Likewise, the smallest you can send is going to be one byte also.

    Hope is the first step on the road to disappointment.

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