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  • Im new. Read book about computer gates, buses, RAM, flip-flops, etc. Also searched high and low on internet to find out how/what causes a bit to get turned on (energized/5v). Hope I am not violating any forum rules by asking.

     

    How do "1" bits get energized/volts? Assume a program has defined a constant named ONE that has an initial value of 1 (0000 0001). Does the right most bit get energized (5V) when the program gets loaded into memory? What component of the computer causes that to happen? Same question for how do bits in op codes and operands get energized?

  • in reply to harivney

     

    Ok where to start? what do you what to set to (TRUE or 1)

    • for a GATE just tie it to +5v via a 10k pull-up resistor.
    • for an Arduino GPIO line.
      1. define you IO pin. use a name its easyer. ie.. #define MyBit0 23   which is the same as int MyBit0 23;
      2. pinMode(23, OUTPUT);    // sets the digital pin 23 as output
      3. digitalWrite(23, HIGH); // sets the digital pin 23 on
    • the same question for how do bits in opcodes and operands get energized? why above your knowledge level, Let the compiler do it as this is a risk architure. And a mess.

     

    ~~Cris

Reply
  • in reply to harivney

     

    Ok where to start? what do you what to set to (TRUE or 1)

    • for a GATE just tie it to +5v via a 10k pull-up resistor.
    • for an Arduino GPIO line.
      1. define you IO pin. use a name its easyer. ie.. #define MyBit0 23   which is the same as int MyBit0 23;
      2. pinMode(23, OUTPUT);    // sets the digital pin 23 as output
      3. digitalWrite(23, HIGH); // sets the digital pin 23 on
    • the same question for how do bits in opcodes and operands get energized? why above your knowledge level, Let the compiler do it as this is a risk architure. And a mess.

     

    ~~Cris

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