Never dealt with licensing, so whatever you think is best works for me. I'm pawing through that PDF you pointed me to, just to be safe -- if it's any help the revised VGA schematic I'm drawing up now uses 74HC125's for the buffer-drivers. Gimme another half hour or so and I'll have you another scan <g>
One other thing I thought of -- would it be permissible to tie a GPIO in with my power-on logic setup (in between the Mims-debounced pushbutton and the improvised T flipflop) so that the system could at least turn itself off...? Right now you'd need a Win95 style "it is now safe to turn off your computer" screen to tell the user to hit the pushbutton. Ack. (Also, if there's a good way to do that circuit with an IRF510 instead of an IRF9510 I'd love to know -- IRF510s can be had at Radio Shack, but the IRF9510 is almost hen's-teeth even at Mouser...)
I'm afraid I'm useless with opamps. I've used a 741 once and it didn't work >.< of course when I stuffed a 386 in there, that DID work -- was a super duper simple amplified speaker in a reuseable coffee cup for a relative who never used it because by the time it was done she had a different car with an aux-in jack so she didn't need it.
Oh, yeah... "flying squirrel"...? What the heck...?
On 10/16/2013 1:37 PM, luke.leighton wrote:
On Wed, Oct 16, 2013 at 5:50 PM, Christopher Havel laserhawk64@gmail.com wrote:
Nevermind, I found the schematic on their wordpress blog. I think I've got them beat -- how about hardware-level switching between 18b and 24b color, using a single GPIO pin? <g>
Don't worry about Olimex, my idea uses different buffer chips, in a different way, and the buffer scheme is really the only part of the design that they "own" (if at all -- there's no license info or anything on the blog post...) so I think we should be in the clear there.
I'll have schematics up in a bit...
star.
what i'll then do if that's ok with you is put the bits of it that are different from the MEB (because, effectively, the design you've come up with is near-identical to the MEB except the addition of VGA) into KiCAD. would a GPLv3+ license be ok with you?
l.
arm-netbook mailing list arm-netbook@lists.phcomp.co.uk http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to arm-netbook@files.phcomp.co.uk