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Elektor EC-6809

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cfbsoftware:

--- Quote from: Wawavoun on October 22, 2021, 12:26:18 pm ---What they call "boot rom" ESS-541 is a collection of subroutines doing various jobs related to the // keyboard, the floppy interface and the video.

--- End quote ---
It's related to a different system but somebody in this discussion may be able to help you:
6809 and FLEX
https://stardot.org.uk/forums/viewtopic.php?f=2&t=9114

SiliconWizard:
Just as a side thought, the 6809 didn't nearly get the popularity it deserved. Possibly because it appeared too late, and the 8-bit market was already saturated.

From my experience, it looks like the 6809 got somewhat more popular in France than in the US, for instance, which can explain the number of french projects using it, and the whole series of the Thomson home computers (and a few other computers of the time!)

As to french magazines, a number of key ones in the 80s got their own project using the 6809. So, apart from Elektor, there was at least:

- "Le Haut Parleur", with the "Tavernier 6809"; http://silicium.org/site/index.php/catalogue/28-catalogue/france/41-tavernier-6809
- "Led", with the more humble "Microkit 09". http://www.retronik.fr/revues/led/1983/LED011_10-1983.pdf

For the record, it was this series in the "Led" magazine - ran over a few editions in late 1983 and 1984 - that really got me as a kid into electronics and computer design.

Anyone interested can find archives of many french magazines here: http://www.retronik.fr/revues/

m k:
Is it possible Acorn 6809 relative?

ozcar:

--- Quote from: m k on November 28, 2021, 02:41:25 pm ---Is it possible Acorn 6809 relative?

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There certainly are similarities, in that both apparently used parallel-attached keyboards (and there was me thinking that my parallel-attached keyboard was unusual), and both had 6845-based CRT controllers (optional on the Acorn system?). Could be differences in the system memory map, but the Acrorn monitor might be able to be adapted for use on the Elektor system. It would at least give a good starting point if the Elektor monitor can’t be found

I see there is a listing of the Acorn monitor in the user manual, here:

https://chrisacorns.computinghistory.org.uk/docs/Acorn/Manuals/Acorn_6809UM.pdf

I’ll bet somebody has the source for that monitor, but I did not try to find such.

Benta:

--- Quote from: SiliconWizard on November 27, 2021, 05:35:43 pm ---Just as a side thought, the 6809 didn't nearly get the popularity it deserved. Possibly because it appeared too late, and the 8-bit market was already saturated.

--- End quote ---

I'm 100% with you here. The second reason was the almost simultaneous appearance of the M68000, which really made waves.

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