Post by thread:[PIC] programmer for rip van winkle

Hello all: About eight years ago I built two projects with these parts: 17C43 16C74 12C508 16C622 (with quite a bit of help from this list) In the meantime, I have been working on other things, and have not been able to keep up with the PIC world. I see that a lot has changed, both in the parts available and the programmer selection. I'm now faced with having to repair and maintain those older projects. The other development is that my PIC programmer appears to have died. So, I have to find a new programmer. My questions: 1. Can someone give me a nickel summary of what the trends have been in the PIC evolution? 2. Can I find a decent programmer that will support those older parts while still allowing me to use the newer parts out there? Any recommendations? The programmers I looked at from links on the piclist site didn't mention these older parts. Are the technologies incompatible? 3. Are there replacement parts I should be using for the above? I'm especially concerned that the 17C43 seems to be nowhere on the microchip site, though I see that I can still procure parts from Digi-Key. My rudimentary efforts to find an equivalence chart failed. Many thanks, -tom -- ------------------------ tomfool at as220 dot org http://sgouros.com http://whatcheer.net

On 12/7/07, Tom Sgouros <spam_OUTtomfoolTakeThisOuTas220.org> wrote: {Quote hidden}> > Hello all: > > About eight years ago I built two projects with these parts: > > 17C43 > 16C74 > 12C508 > 16C622 > > (with quite a bit of help from this list) > > In the meantime, I have been working on other things, and have not been > able to keep up with the PIC world. I see that a lot has changed, both > in the parts available and the programmer selection. > > I'm now faced with having to repair and maintain those older projects. > The other development is that my PIC programmer appears to have died. > So, I have to find a new programmer. > > My questions: > > 1. Can someone give me a nickel summary of what the trends have been > in the PIC evolution? Too many changes now. Just a few. OTP--> Flash. Introduction of PIC18, PIC24, dsPIC30/dsPIC33, PIC32 New technology like USB, better CAN, Ethernet, Zigbee, etc Read this as well: http://ww1.microchip.com/downloads/en/DeviceDoc/00148M.pdf > 2. Can I find a decent programmer that will support those older parts > while still allowing me to use the newer parts out there? Any > recommendations? The programmers I looked at from links on the > piclist site didn't mention these older parts. Are the > technologies incompatible? PICStart+ and PICkit 2. PICKit 2 will support most Flash PICs and it is faster. It is not compatible with old OTP PICs. PICstart+ will support the old ones. If you do not need to use those newer PICs and you can withstand the low speed of PICStart+, it will be good enough for you. > 3. Are there replacement parts I should be using for the above? I'm > especially concerned that the 17C43 seems to be nowhere on the > microchip site, though I see that I can still procure parts from > Digi-Key. My rudimentary efforts to find an equivalence chart > failed. > http://ww1.microchip.com/downloads/en/DeviceDoc/00148M.pdf 17C43 -->18F4320 16C74 --> 16F74 (or 16F874A, 16F914, 16F884) 12C508 --> 12F508 16C622 --> 16C622A or better use Flash 16F819 Xiaofan