Known Incompatibilities; Fram71B In Hp-71Bs With Speed-Upgrades; Fram71B Co-Existing With Other Modules; Fram71B And The Il-Module - HP FRAM71B User Manual

FRAM71B
4 Known Incompatibilities
As of release date of this manual, the following modules / images have been tested:
Module Incompatibility
MATH:1A
FORTH:1A
DIAG
2CDCC
HPIL:1A

4.1 FRAM71B in HP-71Bs with Speed-Upgrades

FRAM71B does not support HP-71Bs with clock speeds higher than 690 kHz.

4.2 FRAM71B Co-Existing with other Modules

· When using the SYSRAM feature, it is not possible to use a "Take-Over ROM" in ei-
ther Port 3 or the HPIL-Port at the same time.
· Hard-configured ROMs, such as the FORTH/Assembler ROM and the HP-41C Transla-
tor ROM, can't be used if the "E0000" feature is enabled.
Insertion / removal of modules must always follow the guidelines as laid out in the HP-71B
user manuals.

4.3 FRAM71B and the IL-Module

For the IL-Module, there is unfortunately no known way of "upgrading" its 1A ROM by using
a 1B ROM-image in FRAM71B. This is due to the internal structure of the IL-Module and the
way the HP-71B treats it on start-up.

4.4 FRAM71B and HP-71B Firmware Versions

There is no known incompatibility with HP-71B's 1BBBB, 2CDCC firmware versions.
5 Hardware Requirements
To make use of FRAM71B's continuous memory features, you only need an HP-71B. Some of
FRAM71B's advanced features require a means of transferring data between your PC and
your HP-71B, so a HP82164A comes in handy here. Using the SYSRAM feature requires skills
to do hardware modifications. To configure your FRAM71B, see chapter 9 "Memory Configu-
ration" for details.
FRAM71B 1.00
May Cause
-none-
-none-
-none-
-none-
-none-
Comments / Tested With
Module / Image
Module / Image
Image in SYSRAM
Image in SYSRAM on 1BBBB mainframe
1BBBB, 2CDCC
- 7 -
User's Manual
©Hans Brueggemann, 2016