Post by thread:[PIC]:Need programmer for 16F628

Hi! I'm looking for a easy to build programmer for 16F628 (others chips are welcome of course), does anybody have such programmer plans. Thanks in advance for any information. Hamilton T. Horta -- http://www.piclist.com hint: To leave the PICList spam_OUTpiclist-unsubscribe-requestTakeThisOuTmitvma.mit.edu

> Hi! > > I'm looking for a easy to build programmer for 16F628 (others > chips are > welcome of course), does anybody have such programmer plans. Thanks in > advance for any information. > > Hamilton T. Horta Hi, I just built a JDM programmer and I'm using it to program PIC16F627's. Runs straight off a serial port, no external power supply required, can be used for ISCP. Look for the two transistor circuit at: http://www.jdm.homepage.dk Make sure you change the circuit and tie RB4 to ground instead of +5V, this little gotcha got me. Then download this really nice windows programming software from: http://www.ic-prog.com Have fun! Brent Brown Electronic Design Solutions 16 English Street Hamilton, New Zealand Ph/fax: +64 7 849 0069 Mobile/text: 025 334 069 eMail: .....brent.brownKILLspam@spam@clear.net.nz -- http://www.piclist.com hint: To leave the PICList piclist-unsubscribe-requestKILLspammitvma.mit.edu

On Mon, Oct 08, 2001 at 02:52:59PM -0300, PY2NI wrote: > Hi! > > I'm looking for a easy to build programmer for 16F628 (others chips are > welcome of course), does anybody have such programmer plans. Thanks in > advance for any information. Take a look at my Trivial LVP programmer. It does have a couple of limitations. First off it's Low Voltage Programming only. This means that it's limited to the 16F62X and 16F87X series chips. Secondly I've targeted all my software for Linux. It's a Tait style programmer and should work with DOS/Windows Tait style software. However I haven't gotten any reports yet of it working with DOS/Windows software. Lastly because it's Low Voltage, you lose the LVP pin, which is RB4 on the 16F628. On the upside, it's simple and cheap. One HCT chip and one resistor. Requires 5V only. Parts are RatShack available. Take a look at http://www.finitesite.com/d3jsys and see if it may fit your needs. BAJ -- http://www.piclist.com hint: To leave the PICList .....piclist-unsubscribe-requestKILLspam.....mitvma.mit.edu

> > I just built a JDM programmer and I'm using it to program > PIC16F627's. Runs straight off a serial port, no external power > supply required, can be used for ISCP. Look for the two transistor > circuit at: > > http://www.jdm.homepage.dk > > Make sure you change the circuit and tie RB4 to ground instead of > +5V, this little gotcha got me. Then download this really nice > windows programming software from: Hi Brent! Acctualy I have one programmer and it was not working properly (PROPIC 2), to my surprise RB4 was connected to +5V also, I just hardwired the pin to GND and programmer is now working great. Thank you a lot for the tip, by the way PROPIC2 is much faster than ICprog which I have tested, let me now if uou want a copy. Regards Hamilton Horta {Quote hidden}> > http://www.ic-prog.com > > Have fun! > > Brent Brown > Electronic Design Solutions > 16 English Street > Hamilton, New Zealand > Ph/fax: +64 7 849 0069 > Mobile/text: 025 334 069 > eMail: EraseMEbrent.brownspam_OUTTakeThisOuTclear.net.nz > > -- > http://www.piclist.com hint: To leave the PICList > piclist-unsubscribe-requestspam_OUTmitvma.mit.edu > > > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

{Quote hidden}> > I just built a JDM programmer and I'm using it to program > > PIC16F627's. Runs straight off a serial port, no external power > > supply required, can be used for ISCP. Look for the two transistor > > circuit at: > > > > http://www.jdm.homepage.dk > > > > Make sure you change the circuit and tie RB4 to ground instead of > > +5V, this little gotcha got me. Then download this really nice > > windows programming software from: > > Hi Brent! > > Acctualy I have one programmer and it was not working properly > (PROPIC > 2), to my surprise RB4 was connected to +5V also, I just hardwired the > pin to GND and programmer is now working great. Thank you a lot for > the tip, by the way PROPIC2 is much faster than ICprog which I have > tested, let me now if uou want a copy. > Hello Hamilton, Thanks, I'll download the and have a look at the PROPIC2 software. I presume that pin 10 is tied to +5V on these programmers for a reason. Do you know which chips this applies to? The IC-Prog software has a note saying to connect RB4 (pin10) to ground for the PIC16F627 & 628, but doesn't say which chips need it set back to +5V. Brent Brown Electronic Design Solutions 16 English Street Hamilton, New Zealand Ph/fax: +64 7 849 0069 Mobile/text: 025 334 069 eMail: @spam@brent.brownKILLspamclear.net.nz -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

> > Hello Hamilton, > > Thanks, I'll download the and have a look at the PROPIC2 software. > > I presume that pin 10 is tied to +5V on these programmers for a > reason. Do you know which chips this applies to? The IC-Prog > software has a note saying to connect RB4 (pin10) to ground for the > PIC16F627 & 628, but doesn't say which chips need it set back to > +5V. > > Brent Brown > Hi again Brent, as far as I can see the problem arrives with the whole 28 and 40 pin family, when pluged to the programmer RB4 (pin-10) become VDD (pin-32). Hamilton Horta -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

> I'm looking for a easy to build programmer for 16F628 (others chips are >welcome of course), does anybody have such programmer plans. Thanks in >advance for any information. > >Hamilton T. Horta Hi, http://www.olimex.com/dev in PIC section you will find some schematics. Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) Development boards for PIC, AVR and MSP430 (http://www.olimex.com/dev) -- 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