THANKS! I'll check this chip out. It doesn't take a whole lot to do SPI in software (lot easier than uart!), so the lack of spi is not serious. Harold > The much maligned 18F1320 has 18 pins, an AUSART but unfortunately > no SPI. Bear in mind that this is only a 4 MHz chip (as yet; while it is > spec'ed to be a 40 MHz, the errata and many gray hairs on Olin's head > can attest to the need to keep the speed below 4 MHz), so if you need > more speed, you'll need more pins. > > Sigh. I could wish there were more low pin count 18F's. I'd even like > to see an 8 pin, but I don't know that the umpf the 16-bit core brings > would be required too often for projects that only need an 8-pin chip. > > Mike H. > >>I've also moved most of my stuff to 18F chips, but there's an application >>I'm working on now where I really don't need very many pins (I'm using >>external serial peripherals), but I'd like a fair amount of RAM and ROM. >>The smallest 18F I see is about 28 pins, and I get to pay for those pins >>whether I use them or not. So, are there any low pin count 18F chips I'm >>missing? I need at least one UART (two would be nice, but I could bit >> bang >>one), an SPI, but no A/D. Seems like 8 I/O lines would do it. Another >>consideration is I have a C compiler for 18F, but not for 16F. However, I >>don't want to build a per unit cost into the design just to save the cost >>of another compiler. I COULD write it in ASM, but C is spoiling me... >> >>Harold >> >> >> > Dom wrote... >> > >> >>I've finally done it - I ordered some sample 18F442 pics from >> Microchip >> >> and >> >>thought I'd start to move away from the 16F series. >> > >> > [...] >> > >> >>Does anyone know of any gotchas for moving from 16F to 18F processors >> ? >> >> I'm >> >>sure I'll hit a few in the not too distant future but any advance >>warning >> >> of >> >>what to expect would be appreciated. >> > >> > I switched over to the PIC18Fxx2 series for all my hobby stuff >> > about a year ago; I find them a **LOT** easier to work with. So >> > far I haven't encountered any problems with them other than what >> > is documented in the various errata documents. >> > >> > Dave D. >> > >> > -- >> > http://www.piclist.com hint: The PICList is archived three different >> > ways. See http://www.piclist.com/#archives for details. >> > >> >> >>-- >>FCC Rules Online at http://www.hallikainen.com/FccRules/ >> >>-- >>http://www.piclist.com hint: The PICList is archived three different >>ways. See http://www.piclist.com/#archives for details. > > _________________________________________________________________ > Tired of slow downloads and busy signals? Get a high-speed Internet > connection! Comparison-shop your local high-speed providers here. > https://broadband.msn.com > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > -- FCC Rules Online at http://www.hallikainen.com/FccRules/ -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body