Post by thread:Simple integrated ICP for Flash PIC

Hello folks As I mentioned before I am developing a PIC (16F676) based solar tracker that Is supposed to be released under some Open Source License I can imagine it interesting that the hardware had a build in Interface for serial programming and maybe even data communication with a computer, that doesn't require anything fancy other than a standard cable. So I figure a standard 9 pin DB Serial connector on the board would be OK. And if it was just to program the devices that would be great, but maybe sometimes one could also be interested in data gathering or remote control, troubleshooting or calibration... So if the serial connector had a dual functionality even better! Of course that may then require a switch to select between modes... Is there anything similar out there in published circuits that I could base my design on? Thanks everybody for your help Tobias P.S: am working away on the program and like the SourceBoost IDE a lot

Wht not use a bootloader ?? RP On 14/01/07, Tobias Gogolin <spam_OUTusertogoTakeThisOuTgmail.com> wrote: {Quote hidden}> Hello folks > > As I mentioned before I am developing a PIC (16F676) based solar tracker > that Is supposed to be released under some Open Source License > > I can imagine it interesting that the hardware had a build in Interface for > serial programming and maybe even data communication with a computer, that > doesn't require anything fancy other than a standard cable. > So I figure a standard 9 pin DB Serial connector on the board would be OK. > > And if it was just to program the devices that would be great, but maybe > sometimes one could also be interested in data gathering or remote control, > troubleshooting or calibration... > So if the serial connector had a dual functionality even better! Of course > that may then require a switch to select between modes... > > Is there anything similar out there in published circuits that I could base > my design on? > > Thanks everybody for your help > > Tobias > > P.S: am working away on the program and like the SourceBoost IDE a lot > -

Yes a bootloader is probably the solution! But since I don't like IC sockets it would be cool to see if there was a simple switch or jumper config to write even the boot loader the first time... On 1/14/07, Richard Prosser <.....rhprosserKILLspam@spam@gmail.com> wrote: {Quote hidden}> > Wht not use a bootloader ?? > RP > > On 14/01/07, Tobias Gogolin <usertogoKILLspamgmail.com> wrote: > > Hello folks > > > > As I mentioned before I am developing a PIC (16F676) based solar tracker > > that Is supposed to be released under some Open Source License > > > > I can imagine it interesting that the hardware had a build in Interface > for > > serial programming and maybe even data communication with a computer, > that > > doesn't require anything fancy other than a standard cable. > > So I figure a standard 9 pin DB Serial connector on the board would be > OK. > > > > And if it was just to program the devices that would be great, but maybe > > sometimes one could also be interested in data gathering or remote > control, > > troubleshooting or calibration... > > So if the serial connector had a dual functionality even better! Of > course > > that may then require a switch to select between modes... > > > > Is there anything similar out there in published circuits that I could > base > > my design on? > > > > Thanks everybody for your help > > > > Tobias > > > > P.S: am working away on the program and like the SourceBoost IDE a lot > > --

Tobias Gogolin wrote: > Yes a bootloader is probably the solution! > But since I don't like IC sockets it would be cool to see if there was a > simple switch or jumper config to write even the boot loader the first > time... > I don't see the relation between programming a chip and IC sockects, ... any PIC can be programmed (either with LVP or HVP) after it is soldered in a circuit board. cheers, Stef Mientki

On 1/14/07, Richard Prosser <.....rhprosserKILLspam.....gmail.com> wrote: > On 14/01/07, Tobias Gogolin <EraseMEusertogospam_OUTTakeThisOuTgmail.com> wrote: > > Hello folks > > As I mentioned before I am developing a PIC (16F676) based solar tracker > > that Is supposed to be released under some Open Source License > > Wht not use a bootloader ?? > RP > A bootloader would not work for 16F676 since it is a standard Flash part. The OP has to use something like 16F88 or 16F876A.

woops! RP On 15/01/07, Xiaofan Chen <xiaofancspam_OUTgmail.com> wrote: {Quote hidden}> On 1/14/07, Richard Prosser <@spam@rhprosserKILLspamgmail.com> wrote: > > On 14/01/07, Tobias Gogolin <KILLspamusertogoKILLspamgmail.com> wrote: > > > Hello folks > > > As I mentioned before I am developing a PIC (16F676) based solar tracker > > > that Is supposed to be released under some Open Source License > > > > Wht not use a bootloader ?? > > RP > > > > A bootloader would not work for 16F676 since it is a standard Flash > part. The OP has to use something like 16F88 or 16F876A. > -

Tobias Gogolin wrote: > Yes a bootloader is probably the solution! > But since I don't like IC sockets it would be cool to see if there was a > simple switch or jumper config to write even the boot loader the first > time... > > > You can't install the bootloader before the device is mounted? --Bob

>You can't install the bootloader before the device is mounted? ts not maintainance friendly enough anyhow Xuiaoan says my device does not support a boot loader anyway... On 1/14/07, Bob Axtell <RemoveMEengineerTakeThisOuTneomailbox.com> wrote: {Quote hidden}> > Tobias Gogolin wrote: > > Yes a bootloader is probably the solution! > > But since I don't like IC sockets it would be cool to see if there was a > > simple switch or jumper config to write even the boot loader the first > > time... > > > > > > > > > You can't install the bootloader before the device is mounted? > > --Bob > -

On 1/15/07, Tobias Gogolin <spamBeGoneusertogospamBeGonegmail.com> wrote: > >You can't install the bootloader before the device is mounted? > ts not maintainance friendly enough > anyhow Xiaofan says my device does not support a boot loader anyway... > Why not change to those PICs which support bootloader then?

For starters the 16F676 are what I have... Also how many bytes of program space does the bootloader take up? Maybe I should redefine the question then how many and which components does a simple serial or parallel port programmer require? Where do I find a good circuit and software combination that can work it? Thanks! On 1/15/07, Xiaofan Chen <TakeThisOuTxiaofancEraseMEspam_OUTgmail.com> wrote: > > On 1/15/07, Tobias Gogolin <RemoveMEusertogoTakeThisOuTgmail.com> wrote: > > >You can't install the bootloader before the device is mounted? > > ts not maintainance friendly enough > > anyhow Xiaofan says my device does not support a boot loader anyway... > > > > Why not change to those PICs which support bootloader then? > -