From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: EC3 software
Date: Sun, 16 Jun 2019 15:50:41 +0800
References: <list-12679604@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-12679604@logan.com>
Message-Id: <C497861A-C408-49DE-8E6A-7EE7FF424339@gmail.com>

Thanks Finn.
Thats disappointing to hear.
I still may need to reprogram mine for (turbo or change in coils) so =
I=E2=80=99ll be interested in what others find.
I may need to go back to my EC2 which I can reprogram.

I don=E2=80=99t understand the config settings coming out of compiling =
the code.
Tracy previously provided the following config for the EC2
Osc                             EC OSC2 as RA6
Osc Sw                       Disabled
Pwr Up timer              Enabled
Brown out                   Enabled
Brown out V.               2.7V
WDT                            Enabled
WDT Postscale          1:256
CCP2 MUX                 RC1
MCLR Enable            MCLR Disabled  RG5 Enable
Stack Ovf                    Enabled
LV Program                Disabled

Not sure how you would create the executable without these config data =
for the compiler.

Cheers

Steve


> On 16 Jun 2019, at 2:03 pm, Sam Hoskins sam.hoskins@gmail.com =
<flyrotary@lancaironline.net> wrote:
>=20
> Thank you Finn.=20
>=20
> A lot of pieces still missing, but maybe there is still hope for my =
system.=20
>=20
>=20
> On Sun, Jun 16, 2019, 5:51 AM Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
> Talked with Tracy today.
>=20
> Yes, programming pins are carried out to the DB connectors on the EC3.=20=

> However, there has been some instances where in-circuit programming=20
> didn't go well (he never found out why), so he recommends programming=20=

> the chips removed from?? the board (for example using the socket I=20
> ordered). He mentioned that he could not figure how to get it to work=20=

> with more recent versions of MPLABS and recommends version 8.15 or so=20=

> (should still be available on the Internet=20
> =
https://www.microchip.com/development-tools/pic-and-dspic-downloads-archiv=
e).=20
> Need to confirm that the version that worked for him is indeed 8.15
>=20
> The config file should be automatically generated first time you =
compile=20
> the code, unless he's forgotten something.
>=20
> Problem with Sam's version is he's forgotten the mental notes about =
the=20
> differences between the rotary and the big bore aircraft engines.=20
> Basically the EC3 is now old technology (the 18F452 chip considered=20
> obsolete) and recommends using readily available Arduino-based engine=20=

> controller boards.
>=20
> Gave the example that even though the plans still exist , no one could=20=

> build a Saturn V rocket today, because the engineers and their =
notebooks=20
> (mental and otherwise) on how to actually build it are gone.
>=20
> Regarding reading and understanding the code, remember that it is=20
> interrupt-driven and not just one long series of sequential code.
>=20
> I hope I've properly understood and relayed his comments here.
>=20
> Finn
>=20
> On 6/15/2019 10:09 AM, Stephen Izett stephen.izett@gmail.com wrote:
> > Hi Fin
> > I see that on the J2 DB connector pins 1 and 11 are marked FACTORY =
USE ONLY.
> > These maybe for programming.
> > Steve
> >
> >> On 15 Jun 2019, at 9:50 pm, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
> >>
> >> Hi Fin
> >> Sorry. I missed your photo, but found it just now. Yes, appears no =
headers!
> >> So we need a circuit diagram. Pins 16 &17 (PGD and PGC) of each =
processor would need to be accessed for in circuit programming me =
thinks.
> >>
> >> Steve
> >>
> >>
> >>
> >>> On 15 Jun 2019, at 9:35 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
> >>>
> >>> I thought I'd posted a picture of the EC3 on 12 June.
> >>>
> >>> Trying again.
> >>>
> >>> There are no header pins.
> >>>
> >>> Finn
> >>>
> >>> On 6/15/2019 9:28 AM, Stephen Izett stephen.izett@gmail.com wrote:
> >>>> I only spent a few moments on it but the version of MPLABS I have =
didn't accept the PICkit3 for programming the
> >>>> 18F452 processors which appears in Tracy???s notes as the EC3 =
processors.
> >>>>
> >>>> Have you looked inside your EC3? Are there 6 pin ICSP headers for =
in circuit programming like he EC2?
> >>>>
> >>>> Would like to hear from Tracy or someone else that has experience =
programmed the EC3.
> >>>> We also need the config data for the compiler.
> >>>>
> >>>> Steve
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>> On 15 Jun 2019, at 9:03 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
> >>>>>
> >>>>> I hope that's not true. What makes you think that?
> >>>>>
> >>>>> I just ordered https://www.ebay.com/itm/262583587324
> >>>>> and https://www.ebay.com/itm/273846534119
> >>>>> I figured I can connect the 6 wires directly to the DIP40 pins, =
bypassing the DIP40 socket.
> >>>>>
> >>>>> I still need to download MPLABS andget familiar with that, but =
that's several weeks in the future.
> >>>>>
> >>>>> Finn
> >>>>> (Currently fighting with the RV-4 cowl and trying to determine =
which radiator(s) and oil cooler to use.)
> >>>>>
> >>>>>
> >>>>> On 6/15/2019 6:05 AM, Stephen Izett stephen.izett@gmail.com =
wrote:
> >>>>>> Hi Fin
> >>>>>>
> >>>>>> Ive spent a few moments looking at the EC3 code.
> >>>>>> I???ve previously updated the settings of my EC2 using the =
method discussed previously, using MPLABS and a PICkit3,
> >>>>>> however having looked at the EC3???s processor details I???m =
not sure if it can be programmed with a tool like the PICkit3.
> >>>>>> I???ll need to look further into this.
> >>>>>> I???m hoping Tracy might be able to enlighten us re programming =
the EC3 processors and the config settings required.
> >>>>>>
> >>>>>> Does anyone else have the details re programming the EC3 etc.
> >>>>>>
> >>>>>> Steve Izett
> >>>>>>> On 11 Jun 2019, at 10:07 pm, Stephen Izett =
stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> >>>>>>>
> >>>>>>> See pdf of an EC2 circuit board showing in-circuit programming =
headers. The EC3 will be similar.
> >>>>>>> <EC2 Board.pdf>
> >>>>>>>
> >>>>>>>> On 11 Jun 2019, at 9:10 pm, Finn Lassen =
finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
> >>>>>>>>
> >>>>>>>> Something like this?
> >>>>>>>> =
https://www.ebay.com/itm/PICKit3-Microchip-Programmer-w-USB-cable-wires-Pi=
c-Kit-3-and-ICSP-Socket/391965539252?hash=3Ditem5b42f77bb4:g:je8AAOSw86JaY=
6CJ:sc:USPSFirstClass!32619!US!-1
> >>>>>>>>
> >>>>>>>> and this?
> >>>>>>>> =
https://www.ebay.com/itm/Plcc44-to-dip40-usb-universal-programmer-ic-adapt=
er-tester-socket-LB/273846534119?_trkparms=3Daid%3D555018%26algo%3DPL.SIM%=
26ao%3D1%26asc%3D57921%26meid%3Db074d810b54f4576947055bf696657dc%26pid%3D1=
00005%26rk%3D4%26rkt%3D12%26sd%3D273856754141%26itm%3D273846534119&_trksid=
=3Dp2047675.c100005.m1851
> >>>>>>>>
> >>>>>>>> What is a 6-way header?
> >>>>>>>>
> >>>>>>>> I wonder if the above programmer will work with MPLabs (a 744 =
MB download!)
> >>>>>>>> =
https://www.microchip.com/mplab/mplab-x-ide?gclid=3DCj0KCQjwov3nBRDFARIsAN=
gsdoGRjNrAf5W07wtNtIBqL4MdFvN4apzRq5hhCoPP7bXzELwMPrM-RbQaAtixEALw_wcB
> >>>>>>>>
> >>>>>>>> Finn
> >>>>>>>>
> >>>>>>>> On 6/11/2019 12:26 AM, Stephen Izett stephen.izett@gmail.com =
wrote:
> >>>>>>>>> I use a PICkit 3 programmer which I imagine are about =
$50USD.
> >>>>>>>>> This plugs into the 6 way (from memory) headers along side =
of each of the pic processors.
> >>>>>>>> --
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>=20
>=20
> --
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