hargle
Veteran Member
I suspect 2 layer should be enough. This is about as simple as it gets.
My coworker just gave me a couple ads for PCB mfg and they go something like this:
2 layer PCB, up to 60" sq, free silkscreen, tooling and mask, for $25.
No minimum qty.
So, at 60 square inches, I'd think we could drop 4 or more of them onto the same board.
If we were able to assemble them ourselves, the cost could easily be $20 or less per board. (I've no idea what the parts would cost)
That ASCII schematic as seen here:
http://www.mylinuxisp.com/~jdbaker/oldsite/sourcecode/xtide.c
didn't have an option ROM on it, so I think we'd be better off trying to clone one of these ADP50L boards. So that would require a hi-res scan of both sides of the PCB, a dump of the option ROM, and perhaps a few hours with a multimeter to make sure all the connections are known.
If anyone else can handle the PCB layout, schematics and hardware end of it, I am all over the option rom side of it...
My coworker just gave me a couple ads for PCB mfg and they go something like this:
2 layer PCB, up to 60" sq, free silkscreen, tooling and mask, for $25.
No minimum qty.
So, at 60 square inches, I'd think we could drop 4 or more of them onto the same board.
If we were able to assemble them ourselves, the cost could easily be $20 or less per board. (I've no idea what the parts would cost)
That ASCII schematic as seen here:
http://www.mylinuxisp.com/~jdbaker/oldsite/sourcecode/xtide.c
didn't have an option ROM on it, so I think we'd be better off trying to clone one of these ADP50L boards. So that would require a hi-res scan of both sides of the PCB, a dump of the option ROM, and perhaps a few hours with a multimeter to make sure all the connections are known.
If anyone else can handle the PCB layout, schematics and hardware end of it, I am all over the option rom side of it...