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Flickerfixer for Amiga with OCS/ECS
This version of the
is designed for Amiga models with OCS and ECS and a socketed Denise chip
(i.e. Amiga 500(+), Amiga 2000, Amiga 3000[T], CDTV). The Amiga 600 is also
supported if an
A604n Memory Expansion
All screenmodes are converted to frequencies of 60Hz or more
(output optionally at 50 Hz to avoid tearing effects), and the
S-Hires mode of the ECS chipset is displayed in full resolution.
Indivision ECS can display the ECS screenmodes even on
systems that only have an OCS Denise chip, the only requirement
is an ECS Agnus chip (which is usually present in all Amiga models
made in 1990 or later).
Denise chip not included.
Non-interlaced modes can be 'downgraded' with the built-in scanline
emulation to achieve the warm and fuzzy retro feeling your
1084 monitor provided back in the day. :-)
Another novelty is the built-in Graffiti emulation. Software that
makes use of the Graffiti modes can display 256 out of 4096 colours
without HAM artefacts.
The left picture shows two Indivision ECS prototypes stacked upon each other.
This is not only a good way to save space, it actually serves a purpose:
When using two Indivision ECS, your Amiga is able to run a dual-screen
setup, so it can have two separate screens showing their own independent
picture (i.e. different output on both screens, not one screen cloned
on the other)! Work on a driver allowing to spread the Workbench over
two displays has been started.
We recommend 2 MB ChipMem to get the most out of Indivision ECS.
If you own an Amiga 500, Amiga 2000 or CDTV, the
Mini Megi Chip
is an easy option to upgrade your ChipMem to 2 MB.
The Fine Print:
Indivision ECS was designed to work with all OCS/ECS Amiga models
with as little hassle as possible (hence its unusual shape). However, due to the
multitude of different boards, there are a few cases where additional modifications
A604n Memory Expansion
required for operation. Space constraints require that the floppy drive be
removed if the Indivision ECS is used with an A603 card. To avoid short circuits,
the metal shield must either be cut or removed entirely (most Amiga 600 computers
were delivered without the shield in the first place, so this is a minor issue).
Can't be used together with an Apollo accelerator card.
Due to space constraints, the battery clock must either be moved or
Indivision ECS needs at least two additional sockets.
The video slot is partially covered, there could be space
problems with a long Zorro card in the upper slot.
Amiga 2000 (Rev. 4.1 and 4.3 only, other revisions have no such limitation):
Due to space constraints, one electrolytic capacitor must either be moved
or replaced by a flatter version.
Adapter required since the power supply is in the way (adapter available separately).