Software Driver Installation

The LM104-P50 module includes two MS-DOS software drivers: one that is interrupt driven (LM104INT.SYS) and one that uses polling (LM104POL.SYS). The interrupt driver is used in most cases.

First, copy the files on the distribution diskette to a drive and directory on the host system.

For the interrupt driver, add the following line to the system’s CONFIG.SYS file:

DEVICE = [DRIVE:] [\PATH\] LM104INT.SYS [SWITCHES]

For the polled driver, remove any shorting jumpers on JP5 and add the following line to the system’s CONFIG.SYS file:

DEVICE = [DRIVE:] [\PATH\] LM104POL.SYS [SWITCHES]

Where [DRIVE:] and [\PATH\] is where the driver files were copied to.

Valid switches are as follows:

/Onn describes the output buffer count, where 2 O nn O 90. The default is 8.

/Inn describes the input buffer count, where 2 O nn O 90. The default is 8.

/Pn selects the base I/O address. Set jumper JP4 on card to match.

1Base Address 1E0 (default)

2Base Address 300

3Base Address 310

4Base Address 320

/Dn assigns the MS-DOS device name, LON[n], i.e. LON1, LON2, etc.

/Z inhibits auto flush cancel.

/Qn selects the IRQ level (LM104INT.SYS only). Set jumper JP5 on card to match.

1IRQ15 (for use with 80286 or higher only)

2IRQ12 (for use with 80286 or higher only)

3IRQ11 (for use with 80286 or higher only)

4IRQ10 (for use with 80286 or higher only)

5IRQ5 (Default)

6IRQ3