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- The HP Model 82335 HPIB Card
-
- Unlike most PC I/O cards the HP 82335 HPIB card is "memory-mapped" not
- "I/O mapped". The card's memory addresses are defined like "PC segment"
- addresses. The legal map settings for the HP 82335 card are divided into
- 16KB blocks of the "reserved" 384 KB of DOS RAM and are as follows:
-
- +---------------+ E400
- | | <-- not recommended
- +---------------+ E000
- default --> | |
- +---------------+ DC00
- | |
- +---------------+ D800
- | |
- +---------------+ D400
- | |
- +---------------+ D000
- | |
- +---------------+ CC00
- | |
- +---------------+ C800
-
- Hints and Tips
-
- 1) The HP 82335 GPIB card's memory address range must be excluded from use
- by any DOS expanded memory manager and by Windows.
-
- If you are using the DOS EMM386.EXE driver in your CONFIG.SYS file, you
- need to add the -x switch to exclude the HPIB cards selected memory adddress
- as follows: DEVICE=EMM386.EXE x=DC00-DFFF
-
- Also for Windows, place the following line in the "[386Enh]" section of the
- SYSTEM.INI file: emmexclude=0dc00-0dfff
-
- These examples assume that you have selected the default memory address. If
- you are using another memory address, adjust the above examples to match
- the selected address block. (Please refer to the 82335 documentation.)
-
- 2) No 16-bit I/O card can be set to memory addresses in the same 128k block
- as the HP 82335 HPIB card. You will need to change the 16-bit I/O card
- to 8-bit operation, please consult the card's documentation for details.
-
- The fast performance of advanced 16-bit VGA cards can be retained by
- enabling shadow RAM in the PC's SETUP program to allow the VGA BIOS
- extensions to be run out of PC RAM instead of the card's on-board
- ROMs. However, shadow RAM may block out the HPIB card. Use the PC's
- SETUP program to disable shadow RAM if applicable.
-
- 3) High-speed cache (often found on 486 machines) may mask out the HPIB card.
- Use the PC's SETUP program to disable cache during troubleshooting; then
- adjust the card's address to get around any troublesome cache addresses.
-
- 4) If you have an EISA-bus based personal computer, you must load a
- configuration file for the HPIB card. The *.CFG file is provided on the
- 82335's installation disks. All EISA machines have an EISA configuration
- program. HP uses a configuration program named EZCONFIG.
-
- HP 82335 HPIB Card Configuration Switches
-
-
- +--- DEFAULT SWITCHES
- | +-----------------+
- +---------------------------------+ | 1 0 |
- | 82335 | | +----+----+ |
- | 1 0 | | 1 | |XXXX| 0 | --\
- | 1 +--+ | | +----+----+ | \
- | 2 | | +--+ | 2 |XXXX| | 1 | |
- | 3 | | Configuration | | | +----+----+ | +- Memory
- | 4 | | Switches | | | 3 |XXXX| | 1 | | Address
- | 5 | | (8) | | | +----+----+ | /
- | 6 | | | | | 4 |XXXX| | 1 | --/
- | 7 | | +--+ | +----+----+ |
- | 8 +--+ | | 5 | |XXXX| 0 | ---\
- | | | +----+----+ | +- Interrupt
- | | | 6 | |XXXX| 0 | ---/ Level
- +---+ +-----+ | +----+----+ |
- | | | | 7 | |XXXX| 0 | ---\
- +-----------------------+ | | +----+----+ | +- Not Used
- | | 8 | |XXXX| 0 | ---/
- | +----+----+ |
- +-----------------+
-
-
- In the switch diagram, the switch numbering is on the left; the actual values
- of the default settings shown are on the right. Note that if the DIP switch
- uses slide switches, a "0" corresponds to the slide pushed to the right; if
- the DIP uses rocker switches, a "0" corresponds to the switch depressed on the
- right.
-
-
-
- Switches 1-4 control the PC memory address. Switches 5 & 6 control
- +--------+--------+ +--------+-----------+ the PC interrupt level.
- | Switch | Memory | | Switch | Memory | The default is ISC 7.
- | 1234 | Address| | 1234 | Address | +---------+-----+-----+
- +--------+--------+ +--------+-----------+ | PC IRQ | 5 | 6 |
- | 0000 | C000 | | 0110 | D800 | +---------+-----+-----+
- | 0001 | C400 | | 0111 | DC00 | | 3 | 0 | 0 |
- | 0010 | C800 | | 1000 | E000 | | 4 | 0 | 1 |
- | 0011 | CC00 | | 1001 | E400 | | 5 | 1 | 0 |
- | 0100 | D000 | | 1010 | E800 | | 7 | 1 | 1 |
- | 0101 | D400 | | 1011 | EC00 | +---------+-----+-----+
- | 0110 | D800 | | 11xx | F000-FC00 |
- +--------+--------+ +--------+-----------+
-
-