Quoting Konstantin Klitenik : > Well, I built PARPIC, and i've tested everything with a multimeter. All the > connections are fine. The voltage on the parallel port is 3.3V but I heard > people built and used PARPIC successfully. When I try to use WinIcProg, it > doesn't detect the port. When the autodetect is on, it says "port: none." > It seems like it is something with the software. I highly doubt this considering I, along with MANY others, use fpp successfully. I've done all the test > things in FPP and all the settings are fine. Although I don't understand > the point of D3 in the PARPIC schematic, it's not in the parpic setting in > the FPP. Anyway, does anyone else know what could be wrong? I have > giveio.sys installed. Try building yourself a THVP/TLVP. They are very easy to build (3 resistors and 1 IC)... > >From: Byron A Jeff > >Reply-To: pic microcontroller discussion list > >To: PICLIST@MITVMA.MIT.EDU > >Subject: Re: [PIC]: PARPIC AND TAIT's FPP programmer > >Date: Tue, 18 Mar 2003 11:51:17 -0500 > > > >On Tue, Mar 18, 2003 at 10:52:01AM -0500, Konstantin Klitenik wrote: > > > I've used define/test and all the pins are configured correctly. I have > > > also tried to use picprg and it doesn't detect the programmer. I've > >been > > > trying to figure out what's wrong for hours and I'm getting frustrated. > >I > > > tried building a QandD and there isn't much you can get wrong there, but > >it > > > still doesn't work. > > > >OK. Here's the next phase. You need a voltmeter for it. > > > >Redo your define/text mode. But this time record the actual low and high > >voltages for each pin on the socket. > > > >Here's the theory (sight unseen): Your parallel port outputs a 3.3V high > >signal. High enough for TTL printers, not high enough for programming PICs. > > > >Further details about the situation on the TLVP page: > > > >http://www.finitesite.com/d3jsys > > > >BAJ > > > > > > > > > > > > >From: Byron A Jeff > > > >Reply-To: pic microcontroller discussion list > > > >To: PICLIST@MITVMA.MIT.EDU > > > >Subject: Re: [PIC]: PARPIC AND TAIT's FPP programmer > > > >Date: Tue, 18 Mar 2003 10:25:43 -0500 > > > > > > > >On Tue, Mar 18, 2003 at 02:14:10AM -0500, Konstantin Klitenik wrote: > > > > > I think the problem is that FPP doesn't even recognize anything on > > > >Parallel > > > > > port. I checked everything again. I made the cable less then 2 > >feet. > > > > > > > >Good. That eliminates one variable. > > > > > > > > > The > > > > > way the error comes up, it doesn't even try to program. As soon as > >I > > > >press > > > > > program it says "Failed to program code!" > > > > > > > >This isn't a really useful error message unfortunately. About 12 > >different > > > >items have to be perfect for the programmer to work. > > > > > > > > > All the settings are fine. > > > > > > > >Are you sure? Have you actually used the test mode to wiggle each line > >and > > > >verify that it's the correct pin on the programming socket. Any of a > > > >misconfig, > > > >miswire, or wrong polarity on any of the programming lines will cause > >the > > > >programmer to fail. > > > > > > > >Trust me, it's worth taking the 30 minutes required to test each line > >from > > > >config to socket. You won't be sorry. > > > > > > > > > I set > > > > > the pic to 16f84 which is what I have and chose parpic as the > >hardware. > > > > > > > >That isn't sufficient for initial testing. You still need to verify > >that > > > >each line is configured and wired properly. This can only be done by > >actual > > > >testing in test mode. > > > > > > > >This failure mode in FPP is one reason why I put chip autodetect in my > > > >latest > > > >version of picprg. If it doesn't autodetect, then you don't even bother > >to > > > >try to program. > > > > > > > >Verify everything. I can almost promise you that you have a misconfig > >or > > > >miswire somewhere in your setup. > > > > > > > >BAJ > > > > > > > >-- > > > >http://www.piclist.com hint: PICList Posts must start with ONE topic: > > > >[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > > > > > > > _________________________________________________________________ > > > Tired of spam? Get advanced junk mail protection with MSN 8. > > > http://join.msn.com/?page=features/junkmail > > > > > > -- > > > http://www.piclist.com hint: PICList Posts must start with ONE topic: > > > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > >-- > >http://www.piclist.com hint: PICList Posts must start with ONE topic: > >[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > _________________________________________________________________ > Protect your PC - get McAfee.com VirusScan Online > http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > ---------------------------------------- This mail sent through www.mywaterloo.ca -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads