| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273 |
- The HAMEG HO-80 IEEE-488 card is driven by an NEC |PD7210C controller.
- It supports the full IEEE 488-1978 standard. With Linux-IEEE this card is
- compatible to an PCII card. Against the PCII you have to pay attention on some
- different jumper setting. In opposit to the PCII th HO-80 contains an 8kB
- BIOS-ROM. This ROM is not used by Linux-IEEE.
- All settings ar taken using two DIL-switches (SW1 and SW2) and two
- jumper-blocks (K1 and K2).
- With SW1 the I/O adress, with K1 the IRQ, with SW2 the ROM-base
- and with K2 th DMA-channel is selected.
- SW1:
-
- Position: 1 2 3 4 5 6 7 8
- Adress : A9 A8 A7 A6 A5 A4 A3 Bus-Master
- For setting the I/O Adress 2B8h you have to convert it to binary:
- 1 0 1 0 1 1 1 0 0 0
- The last three Bits represent the adresslines A2, A1 and A0.
- These three Bits are not used.
- Now setting up SW1 is easy :-) To get an 1 the switch is turned off, an for
- an 0 the switch is turned on. So the following settings result:
- Position: 1 2 3 4 5 6 7
- Setting : off on off on off off off
- With SW1-8 the Bus-Master for the IEEE-488 Bus is selected.
- SW1-8 off: HO-80 is Bus-Master
- SW2-8 on : HO-80 is not Bus-Master
- Remember: Only one device can be Bus-Master. Normally th PC is used for this
- job.
-
- SW2:
- Position: 1 2 3 4 5 6 7
- Adress : A19 A18 A17 A16 A15 A14 A13
- Count : 512K 256K 128K 64K 32K 16K 8K
- By default the ROM is at Adress DE000h. (SW1 settings: 00100000). To change
- the Adress of the ROM you can calculate the settings according to the
- settings of SW1. On most Systems these Setting will work. If this
- Memoryarea is used by an other Adapter (LAN, VGA....) you must change thes
- settings. The Area E0000h and above is not usable! At E0000h the System BIOS
- starts.
- K1 IRQ setting:
- o o IRQ7 LPT1 (normally usable)
- o o IRQ6 Floppy (normally not usable)
- o=o IRQ5 LPT2 (normally usable)
- o o IRQ4 COM1 (normally not usable)
- o o IRQ3 COM2 (normally not usable)
- o o IRQ2 (only usable when IRQ9 is not used)
- K2 DMA setting:
- o o DACK1
- o=o DACK3
- o o DRQ1
- o=o DRQ3
- o o not used
- On an AT-PC DACK3 and DRQ3 are recommended. If DMA3 ist used by an other
- Card try DMA1 (DACK1 and DRQ1). If both are used leave all jumpers open and
- compile the driver without DMA support.
- I use this Card with my Graphtec MP1000 flatbed Plotter, an CBM 4031 Floppy
- Drive and some Measurement equipment. If you have problems with tis Card
- feel free to mail me. I'll try to help you fixing up the problem.
- Andreas.Tauscher@allgaeu.org or tauscher@felix.rz.fh-ulm.de
|
