[Coco] External CHAR ROM for 6847
Phill Harvey-Smith
afra at ramoth.org.uk
Thu Nov 21 04:39:16 EST 2024
On 21/11/2024 04:38, Bruce Borer via Coco wrote:
> 2.) Replace the ROM with a larger Flash chip and program it with
> several images that you can select. This is simpler
> but does not allow changing the image in-circuit but would allow
> several images to select. The selection could be done
> by switches or a latch that can be selected with firmware.
This is essentially what the Dragon 200e did (except with a single
font), to allow Spanish characters on that machine.
John Whitworth extended this with a dip switch and multiple fonts :
https://dragonpluselectronics.com/dragon-200e-lower-case-daughterboard/
Cheers.
Phill.
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