Agreed; the Winpic800 is great. I have used it with a JDM type and a parallel port based David Tait variant with superb results. It has a nice device identification feature as well. And, it is fast. On the hardware front, the GTP USB Lite USB looks very tempting too. One thing I noticed in the schematic is that the Vdd to the device being programmed is taken directly from the USB port's +5. This being the case, I wonder how it manages the PICs with a Vpp-before-Vdd programming requirement? Regards, Anand Dhuru ----- Original Message ----- From: "Xiaofan Chen" To: "Microcontroller discussion list - Public." Sent: Sunday, September 18, 2005 11:24 AM Subject: Re: [PIC:] Programmer options for the new USBdevices(18F2455/2550/4455/4550) ? > http://pic18fusb.online.fr/wiki/wikka.php?wakka=ToolsAndProgrammers > has a good summary for the 18F USB supported programmer. > > Winpic800 seems to be the best software for JDM type and other simple > programmers. The author also has a nice GTP USB Lite USB programmer > (to me it is like the USB counterpart of Wouter's Wisp628). I checked with > the author and Winpic800 is freeware but not open source. The source for > the firmware of GTP USB lite is also not open source. I am actually very > interested in the dsPIC support of the programmer. > http://forum.microchip.com/tm.asp?m=108574 > > Regards, > Xiaofan > > > On 9/18/05, Denny Esterline wrote: >> I haven't actually tried it yet, but I here good things about WINPIC800. >> Apparently it can make use of most of the "cheapy" programmers (JDM, >> Tait, >> etc) and can program not only the USB 18F parts but also the 10F's and >> DSPIC's >> >> The home page isn't in English, but: >> http://perso.wanadoo.es/siscobf/winpic800.htm >> >> the software is multi-lingual (fourth menu list from the left) >> http://perso.wanadoo.es/siscobf/descargas/WinPic800.zip >> >> Good luck >> -Denny >> >> >> > Hi !. >> > >> > I know about the IDC2 (and clones), but what other options are >> > there today for the new 18F USB devices ? Since they >> > uses a 32 bytes write block during programming, they don't >> > work with programmers that uses the 8 byte write block used >> > by many of the former 18F's. That is, as far as I understand... >> > >> > Jan-Erik, >> > >> > >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.11.1/104 - Release Date: 16-Sep-05 > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist