>> I don't want them to have any additional >> programming hardware or technically complicated software. >With those constraints I would recommend magic. Contact the unseen >university at Ank Morpork. Um....I downloaded the bootloader paper, and had the whole thing working in about 3 hours of effort. It wan't magic. It didn't require programming hardware or technically complicated software.... so...why did you find it necessary to try to make my question sound like a stupid one? - Ted -----Original Message----- From: Wouter van Ooijen [mailto:wouter@VOTI.NL] Sent: Friday, August 01, 2003 12:39 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PIC]:ICSP and downloadable firmware... > I don't want them to have any additional > programming hardware or technically complicated software. With those constraints I would recommend magic. Contact the unseen university at Ank Morpork. You don't get something for nothing. Your options are: - HVP, either with the support circuit within your application, or with an external programming dongle - LVP, idem, but the required support circuit can be very small (but it costs you a pin, and some fuses bits can not be changed - only the LVP bit?) - self-programming / bootloader: the circuit can be very simple and/or re-use existing communication hardware (or check my zero-pin bootloader!), but now you need supporting software in your PIC. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.