- Fact:
- The output of
a component is
connected to
the input of
another component
- You cannot connect the output of a component to the output of another component !!!
- The output of
a component is
connected to
the input of
another component
- Connecting the
output of
a Component1 to the
input of another
Component2:
Sig(signalX,1); Component1( coord1, ..., signalX ); // SignalX is the output signal of Component1 Component2( coord2, signalX, ... ); // SignalX is the input signal of Component2
- Example:
Signal sw0, sw1, out; Switch ( "aa", sw0, 'a', Zero ); ^^ Output signal of a switch Switch ( "ca", sw1, 'b', One ); ^^ Output signal of a switch And ( "bb", (sw0,sw1), out ); ^^^^^^^ Input signals of the And gate Probe ( "bc", out );Resulting connection made by the red signals:
- Warning:
- You cannot connect the outputs of components together !!!!!
- When are
outputs of
different components
connected together ???
Answer:
- The outputs of components are connected together if the signal variable used in the output of the components are the same
Example:
And ( "bb", ...., out ); // output = out Or ( "bc", ...., out ); // output = out
- Example Program:
(Demo above code)
- Prog file: click here
How to run the program:
- Right click on link and
save in a scratch directory
- To compile: cs355sim andx
- To run: ./simex
Error message:
- The program will
compile
- When the circuit simulation is
run, you need see this
error message:
Error (outputConectivityError): Signal[4] name = UnNamed[0] const plus source or two sources, cmp = 3 name = Or at bc There are 1 outputConnectivityErrors--Unable to Continue.