Sunday, November 9, 2008

more research notes:

Allergies are kicking my butt productivity-wise today, and I haven't properly dove into the AVR tools yet. (never mind that I actually have gcc-avr installed!)

---

GAL and PAL chips would be quite awesome to use as a hobbyist - but they hide the programming information so you can't just get started by ordering a chip and a cheap programmer at Mouser or Digikey. Which is really too bad, since while CPLD's are much more flexible, you don't always *need* all that stuff. And unlike CPLD's, some come in DIP packages and even support 5v operation.

Assuming the tools aren't too bad, this Lattice CPLD is at least *somewhat* friendly - being a 5v PLCC chip: http://www.mouser.com/Search/ProductDetail.aspx?qs=Bh9iIJdfhnqZSClaxrFkrQ%3d%3d - but it's $5 and a GAL or PAL can be had for about $1.

---

Why was I thinking about this? I want to convert http://micha.freeshell.org/ramdisk/index.php to be a SD to SCSI drive. See all those little 74xx chips? It'd be great to be able to actually consolidate them. OTOH, the GAL chips might not have enough drive strength anyway.

No comments: