The primary objective of this board would be to allow me to get familiar with the P1 architecture and programming. Nothing fancy, just the simple stuff suitable for a beginner.
There are fine boards out there to be had for as low as ~30 EUR (plus some extra cost) but I decided to build one myself as a weekend project plus it'll cost me one third of that amount and I'll have some fun as well.
I'm going to go KISS with this one. Just a bare minimum. Well, not quite, but close.
I'm going to have:
a P1 chip, obviously,
a quartz resonator,
2 buttons (a reset and a user button),
2 leds, different colours, for an "on board" visual interface,
some decoupling caps and some connectors to break out pins,
a protection diode on Vcc to be on the safe side.
No voltage regulator, no usb<->uart inerface, no LCD. These I'll have off board to be connected when needed. For now.
I have briefly considered an external spi SRAM chip but eventualy dismissed that part, however making room for it on the board, just in case. I'm a a total noob so why bother. I'm not going to write programs that'll use all ot the on chip RAM at this point. Suggestions are very welcome.
BTW, anybody ever run out of P1 ram memory ?
I've seen some pretty impressive things done with the P1 and no mention of the ram shortage.