Specifications

University of Hertfordshire

Jumper/Switch Selection Default setting

SW1 1-5 I/O port base address Hex 2B0

SW1 7-8 Wait states 0

SW2 Firmware base address Hex D000

SW3 Operating mode A

JP1 DACK level 1

JP2 DRQ level 1

JP3 IRQ level 7

Table 5.3 the factory of default setting of PCL -848A/B GPIB Card

5.2 Installation and Configuration of sgpib Driver

Installation is simple, just run following commands in the folder of GPIB Driver.

make all

make install

modprobe kpci488

This loads a module gpib.o and a module kpci.o to the kernel.

Then the next job is to set the IO address and Interrupt. Please take care the IO address and Interrupt

are typed, because wrong values may crash your computer. In this project, IO address is 0X2B8 and

Interrupt is 7.

insmod gpib.o

insmod pc488.o io=0x2b8 irq=7

For some systems, there are without insmod. To link to the kernel:



Copy GPIB driver’s directory to /usr/src/linux/drivers/gpib



Rename Makefile to Makefile.standalone, rename Makefile.kernel to Makefile



Apply the kernelpatch with "patch -p1 < kernelpatch" in /usr/src/linux



Select gpib/sgpib support in Kernel configuration



Compile kernel. (Karrer, 1999)