A600 Clockport

Lemaru · 16 April 2018, 16:25

I have been looking to hack a clockport into my A600. All the signals are available on the memory expansion slot with the exception of _PWR_BAD

Does anyone know where I can pull this from, or if its even needed as I can't locate this on the A600 schematics.

(I know there is a hard to find clockport adaptor that fits over the Gayle IC but that is not A1200 compliant as uses different signals, thus needing different drivers).

Daedalus · 16 April 2018, 17:22

You don't need that signal at all, it's just pulled high on the A1200 through a 47K resistor so I'm sure if you do the same thing on your adaptor it will be fine. I think it might have been intended to hold the reset line until the PSU has stabilised, but at least in the A1200 Rev. 1 schematic this functionality is missing.

Lemaru · 16 April 2018, 18:46

Excellent! Cheers

16 April 2018, 16:25	#1
Lemaru Registered User Join Date: Oct 2016 Location: Berks, UK Posts: 271	A600 Clockport I have been looking to hack a clockport into my A600. All the signals are available on the memory expansion slot with the exception of _PWR_BAD Does anyone know where I can pull this from, or if its even needed as I can't locate this on the A600 schematics. (I know there is a hard to find clockport adaptor that fits over the Gayle IC but that is not A1200 compliant as uses different signals, thus needing different drivers).

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16 April 2018, 17:22	#2
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,379	You don't need that signal at all, it's just pulled high on the A1200 through a 47K resistor so I'm sure if you do the same thing on your adaptor it will be fine. I think it might have been intended to hold the reset line until the PSU has stabilised, but at least in the A1200 Rev. 1 schematic this functionality is missing.

16 April 2018, 18:46	#3
Lemaru Registered User Join Date: Oct 2016 Location: Berks, UK Posts: 271	Excellent! Cheers

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