Output Using MSW Logo - 2
Having plugged in the interface, open MSW Logo.Click in the Input Box at the bottom of the screen and type in: outportB 888 0 and then press ENTER. This will turn all the LEDs OFF.
The general Printer Port outport command in MSW Logo is: outportB 888 <value> , where <value> is a combination of: "1", "2", "4", "8", "16", "32", "64" and "128" up to a maximum of 255.
The output data lines of the Printer Port are referred to as: D0, D1, D2, D3, D4, D5, D6 and D7.
Data Line |
Pin Number |
<value> |
D0 |
2 |
1 |
D1 |
3 |
2 |
D2 |
4 |
4 |
D3 |
5 |
8 |
D4 |
6 |
16 |
D5 |
7 |
32 |
D6 |
8 |
64 |
D7 |
9 |
128 |
If you want to turn on several lines at once you just add the output values for the lines. eg. outportB 888 6 turns on data lines D1 and D2 (6 = 2 + 4). outportB 888 28 turns on data lines D2, D3 and D4 (28 = 4 + 8 + 16)
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