Jasmin drive electric shema

If you want to ask questions about how the machine works, peculiar details, the differences between models, here it is !
How to program the oric hardware (VIA, FDC, ...) is also welcome.
Afsafs
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Jasmin drive electric shema

Post by Afsafs »

Hello all,
I try to restore my old jasmin drive
It start and stuck oric at boot : vertical and color stuff
The reset button is not functional

Is someone has electric shema of pcb controller ?

Thanks
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Dbug
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Location: Oslo, Norway
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Re: Jasmin drive electric shema

Post by Dbug »

Normally, a Jasmin system boots on the Oric by default, and only boots on disk if you press the button.

Not quite sure which magic does that, I don't actually know how that's implemented, but there are a few knowledgeable people regarding the Jasmin around here, hopefully they will be able to help.
mmu_man
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Re: Jasmin drive electric shema

Post by mmu_man »

You can find schematics here.

As for booting, I never looked in details, but I think it forces a reset with mapping the boot ROM, so it just jumps at the reset vector inside it, until it is able to control the overlay.
Afsafs
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Joined: Thu Nov 24, 2022 9:58 pm

Re: Jasmin drive electric shema

Post by Afsafs »

Thanks a lot for electric shema👍
I will try to find what is wrong, the jasmin reset button seem not effective
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