Sutter Instrument Lambda 10-3, Operation Manual

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LAMBDA 10-3 OPERATION MANUAL – REV. 3.03 (20110829)
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only intended to show the elements useful in controlling the LAMBDA 10
LAMBDA 10 LAMBDA 10
LAMBDA 10----3
3 3
3 through a
generic printer port. The user's individual requirements, hardware and software will dictate
the actual program steps to be used. The approach in this example involves direct control
over the state of input and output ports. The example programs have been run successfully
on computers from several manufacturers without encountering any difficulties. However,
given the wide range of hardware and software in use, it is impossible to anticipate all
possible problems. Sutter Instrument Company thus cannot be responsible for any damages
Sutter Instrument Company thus cannot be responsible for any damages Sutter Instrument Company thus cannot be responsible for any damages Sutter Instrument Company thus cannot be responsible for any damages
that might result from use of the example that might result from use of the example that might result from use of the example that might result from use of the example programs. programs. programs. programs. The user should be particularly careful
that the address used for each of the various I/O ports is correct for the user's system.
The parallel printer port is actually composed of three I/O ports at three consecutive
addresses. The first address corresponds to an 8-bit output port, the second to a 4-bit input
port, and the third to a 5-bit input/output port. The first two ports are used in our example.
The address of the first (output) port, which is the base address, should be one of three
possible values, depending on the individual system.
If the printer adapter is located on a display adapter, it will be called LPT 1 and will have a
base address of 956 (3BC H). If there is no active printer adapter on a display adapter card,
the primary printer adapter card will be called LPT1 and will have a base address of 888 (378
H). A second printer adapter card in the same system will be called LPT2 and will have a
base address of 632 (278 H). Check the documentation of your system and the jumpers on the
various adapter cards to be sure of the base address on the adapter you wish to use.
8.5.1 8.5.1 8.5.1 8.5.1 Connecting to the PC Parallel (Printer) Port Connecting to the PC Parallel (Printer) Port Connecting to the PC Parallel (Printer) Port Connecting to the PC Parallel (Printer) Port
The connections to the parallel port are made through a DB 25 connector on your computer.
The pin assignments for the parallel port socket are (as viewed from the plug side):
Figure 8-3. PC parallel (printer) port.