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Slothie · 11th Dec 2018, 10:03 pm

I think that I will include reset on the keyboard connector, and make it a pull-down to ground because for the reasons you outline I don't want to add Vcc to the connector even if there was room, and because that's what is the convention is for reset lines both then and now.

I'm also going to add a 2.1mm barrel jack connector for the power, as I've already had problems with wires soldered to the edge connector and having moved the RAM/IO to clear the regulator there is plenty of room for it. Not very "original" but I think the utility of it overrides that objection.

Once I've mulled over other possible improvements I'm not far from ordering rev 2 of my board! Any other ideas are of course welcome. I'm then going to turn my attention to programming Tesla PROMs since I seem to have accumulated a number of them and their seems to be interest in the possibility.

11th Dec 2018, 10:03 pm	#124
Slothie Octode Join Date: Apr 2018 Location: Newbury, Berkshire, UK. Posts: 1,287	Re: MK14 schematic revisions I think that I will include reset on the keyboard connector, and make it a pull-down to ground because for the reasons you outline I don't want to add Vcc to the connector even if there was room, and because that's what is the convention is for reset lines both then and now. I'm also going to add a 2.1mm barrel jack connector for the power, as I've already had problems with wires soldered to the edge connector and having moved the RAM/IO to clear the regulator there is plenty of room for it. Not very "original" but I think the utility of it overrides that objection. Once I've mulled over other possible improvements I'm not far from ordering rev 2 of my board! Any other ideas are of course welcome. I'm then going to turn my attention to programming Tesla PROMs since I seem to have accumulated a number of them and their seems to be interest in the possibility.