Parallel Port Commands In Turing
We can send out a number between 0 and 255 to the parallel port. The signals that come
out of the parallel port can be represented by an 8 digit binary number (1 is a high signal, 0
is a low signal).
Number Sent
Out
0
1
2
3
4
5
6
7
8
255
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
To send a signal to the parallel port in Turing we use the command:
parallelput(number)
Where the number is between 0 and 255.
Examples:
parallelput(7)
This sends a high signal out of pins D0, D1, and D2
7 = 00000111
parallelput (0)
This sends out a low signal (off) to all of the pins.
0 = 00000000
parallelput(132)
This sends a high signal out of pins D2 and D7.
132 = 10000100