Re: cbm8032 crashing at end of tape load...

From: Christian Dirks <*Toast_r_at_IdeaLine.info*> Date: Sat, 5 Nov 2016 12:50:28 +0100 Message-ID: <7ad46c2b-5d8b-56bd-8115-1cf9707d7768@IdeaLine.info> · Toast_r_at_IdeaLine.info

I think /IRQ is generated by the 6520 on UB12 by VERT DRIVE on CB1,
coming from the CRTC through the 7486 on UC2.

Am 04.11.2016 um 21:46 schrieb didier derny:
> now the cbm8032 is powered with 12v DC with 2 diodes added on the
> circuit to drop the 12v to about 10.8v  (9.3v on unregulated connector)
> when I check the 6v  on the tape connector it is at about 6.05v seems
> correct
> 
> when I try to save a program everything looks ok
> when I try to load a program seems ok to the ready but no cursor ?
> any idea ?
> 
> I may have a clue... the cursor blinking seems irregular  I guess a
> problem with the irq ?
> any idea how the irq is generated on the 8032 ?  6522 ?
> 
> thanks
> 
> -- 
> didier
> 
> 
> 
> 
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-- 
Christian Dirks
Toast_r@Idealine.info

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