Subject:
Re: [gnupic] WISP628 programmer layout design?
From:
"Jay Dagenais" ####@####.####
Date:
5 Feb 2006 22:39:12 +0000
Message-Id: <BAY112-F15BCA07F1B12AD50C87AD7D90F0@phx.gbl>
Yes I would be very interested in checking out these solutions, as the whole
aspect of "charge pumps" is new to me so something using the external supply
would be more my pace at thispoint perhaps, not to mention I'm sure there
are other like myself out there who are not using any of the older PIC's or
even any of the 16 series that alot of the free programmers implement.
Anyone else out there, if you have documented your endevours, learning
curves, experiments and are willing to provide a link or attchment I'm sure
that I would not be the only happy recipient! Thanks all!jaydag71
>From: "George M. Gallant, Jr." ####@####.####
>Reply-To: ####@####.####
>To: ####@####.####
>Subject: Re: [gnupic] WISP628 programmer layout design?
>Date: Sun, 05 Feb 2006 17:18:37 -0500
>
>Jay,
>
>I have a home brew serial port programmer based on a 18F1320. It differs
>from the Wisp-628
>in that it uses an external supply to generate 13V and 5V and it only
>knows how to program
>18f1320 and 18f252 parts. I use Linux and put the burn command in the
>"make" file which
>provides a seamless path to running PIC chip. I built the first board
>with an iron on transfer
>film system in the garage and purchased a couple of blank boards last
>year.
>
>I used a WARP-13A to create a 16F628 based programmer which only
>programmed 18F1320's
>to bootstrap the current design. Tried to implement the 16F burn
>procedures but gave up.
>
>The schematic, artwork, embedded code, and host code could be available
>with the understanding
>that there is NO support.
>
>George
>
>On Sun, 2006-02-05 at 13:38 -0800, Jay Dagenais wrote:
>
> > Yeah, sorry about that, I guess upon further review of the page this is
> > correct and I should not have even asked- I guess I will have to depend
>on
> > my breadboarding for now. I do have a coupld of perhaps silly questions
> > regarding the schematic, such as what are the lines which break with a
> > circle supposed to run into? Are these to a positive common source which
> > they all meet/branch from? I assume that the arrows pointing downwards
>are
> > the common ground lines? So this programmer gets its power from the
>hosting
> > computer, no? and the 13V needed is generated from the? I think that I
>need
> > a bit of an explanaition-more than what the page describes, because I
>don't
> > know what the charge pump is, looks like a coupld of caps to me and a
>coupld
> > of diodes for protection, but I don't know anything so...You mention
>that
> > you have a breadboarded version already, how many types of PIC's have
>you
> > programmed with it so far, and were there changes to the design that
>were
> > necessary to implement programming of certain types? One last question I
> > have regards the type of PIC used in the programmer, does this PIC have
>to
> > be a 16F628, or could one use a PIC18F252 for example? The reason I ask
>is
> > that I have one of those EZ-controllers, which is a 18F252 with a serial
> > bootloader on board, and is able to be programmed with a PC and cable. I
>was
> > thinking that I may be able to use this for the PIC in the programmer
>untill
> > I can get a coupld of PIC's loaded, then swap out or whatever?
>Alternatly,
> > does anyone know if these modules are able to program PIC's other than
>the
> > onboard 18F? There is the programming port(three pins) then up atthe top
> > there are two other sets of three, with an RX and TX, so this could be
> > doable, no?
> >
> >
> > >From: Xiaofan Chen ####@####.####
> > >Reply-To: ####@####.####
> > >To: ####@####.####
> > >Subject: Re: [gnupic] WISP628 programmer layout design?
> > >Date: Sat, 4 Feb 2006 09:41:30 +0800
> > >
> > >On 2/4/06, Jay Dagenais ####@####.#### wrote:
> > > > Hi all, I hope that this is not too off topic for the forum, but am
> > >seeking
> > > > a board layout file for the WISP628 PIC programmer design that is
> > >available
> > > > online freely and for sale as a built unit, the site provides
>virtually
> > > > everything but no layout file for the schematic.
> > >
> > >You are not allowed to post the layout online. Please read the
> > >"Legal notes" section from Wouter's website.
> > >http://www.voti.nl/wisp628/index_1.html
> > >
> > >It specificly says that you can not provide the deign to the public.
> > >"It is allowed to design and make a Wisp628 PCB, but it is not allowed
>to
> > >have it made for you by a PCB company, nor is it allowed to sell such a
> > >PCB, or to provide the PCB design to the general public."
> > >
> > >Anyway, I do not think it is too difficult to build you own Wisp628A
> > >using the schematics. To be honest, my wisp628a is still on a
>breadboard
> > >with flying wires (a shame, I know) but it simply works.
> > >
> > >Be careful with the serial cable though, low quality cable will have
> > >problem with communication.
> > >
> > >The best software to go with Wisp628A is xwisp2 from Rob Hamerling.
> > >http://www.robh.nl/picsoft.php
> > >
> > >Regards,
> > >Xiaofan
> > >
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