From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: EC3 software
Date: Mon, 17 Jun 2019 08:42:21 +0800
References: <list-12681436@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-12681436@logan.com>
Message-Id: <22E6B72A-DAE1-4156-A47F-E1C9EB683552@gmail.com>

Hi Finn
Looks like MPLABX can create a project from an existing built .hex file.
Unfortunately my version of MPLABX on my mac doesn=E2=80=99t seem to =
support the 18F542 as far as tools so it won=E2=80=99t let me create the =
project.

Steve

> On 17 Jun 2019, at 7:41 am, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
>=20
> Hi again Finn.
> I=E2=80=99m really rusty as far as my embedded system knowledge, but =
we may find the chips config data at the end of the List file.
> Look  at the end of the ec3cl8.lst file. We ay be able to find the =
chips config data from the SYMBOL TABLE LABEL and its associated VALUE.
> Can MPLABS read the last file? As I said, I=E2=80=99m very rusty.
> Steve
>=20
>> On 17 Jun 2019, at 7:16 am, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
>>=20
>> Hi Fin.
>>=20
>> No your right in relation to removing the chips and creating a =
programming socket. To easy really.
>> And yes, the config of the chips many options which I don=E2=80=99t =
think are in the code itself unless Ive missed something.
>>=20
>> Steve
>>=20
>>=20
>>=20
>>=20
>>> On 16 Jun 2019, at 11:24 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>>>=20
>>> Are these not the EQU statements in the code that you uncomment by =
removing the ";" in front of the one you want?
>>>=20
>>> Oh, config for the particular chip used?
>>>=20
>>> Again, I'm not (yet) familiar with the development and compiler to =
know what's required.
>>>=20
>>> I don't understand what's so difficult about removing the chips from =
the board and programming them in a $7 socket connected to the 4 or so =
programming wires from the PICKit3.
>>>=20
>>> Finn
>>>=20
>>> On 6/16/2019 3:50 AM, Stephen Izett stephen.izett@gmail.com wrote:
>>>> Thanks Finn.
>>>> Thats disappointing to hear.
>>>> I still may need to reprogram mine for (turbo or change in coils) =
so I???ll be interested in what others find.
>>>> I may need to go back to my EC2 which I can reprogram.
>>>>=20
>>>> I don???t 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
>>>>=20
>>>> Not sure how you would create the executable without these config =
data for the compiler.
>>>>=20
>>>> Cheers
>>>>=20
>>>> Steve
>>>>=20
>>>>=20
>>>>=20
>>>>> On 16 Jun 2019, at 2:03 pm, Sam Hoskins sam.hoskins@gmail.com =
<flyrotary@lancaironline.net> wrote:
>>>>>=20
>>>>> Thank you Finn.
>>>>>=20
>>>>> A lot of pieces still missing, but maybe there is still hope for =
my system.
>>>>>=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.
>>>>> However, there has been some instances where in-circuit =
programming
>>>>> didn't go well (he never found out why), so he recommends =
programming
>>>>> the chips removed from?? the board (for example using the socket I
>>>>> ordered). He mentioned that he could not figure how to get it to =
work
>>>>> with more recent versions of MPLABS and recommends version 8.15 or =
so
>>>>> (should still be available on the Internet
>>>>> =
https://www.microchip.com/development-tools/pic-and-dspic-downloads-archiv=
e).
>>>>> 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
>>>>> the code, unless he's forgotten something.
>>>>>=20
>>>>> Problem with Sam's version is he's forgotten the mental notes =
about the
>>>>> differences between the rotary and the big bore aircraft engines.
>>>>> Basically the EC3 is now old technology (the 18F452 chip =
considered
>>>>> obsolete) and recommends using readily available Arduino-based =
engine
>>>>> controller boards.
>>>>>=20
>>>>> Gave the example that even though the plans still exist , no one =
could
>>>>> build a Saturn V rocket today, because the engineers and their =
notebooks
>>>>> (mental and otherwise) on how to actually build it are gone.
>>>>>=20
>>>>> Regarding reading and understanding the code, remember that it is
>>>>> 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
>>>>>>=20
>>>>>>> On 15 Jun 2019, at 9:50 pm, Stephen Izett =
stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
>>>>>>>=20
>>>>>>> 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.
>>>>>>>=20
>>>>>>> Steve
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>>> On 15 Jun 2019, at 9:35 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>>>>>>>>=20
>>>>>>>> I thought I'd posted a picture of the EC3 on 12 June.
>>>>>>>>=20
>>>>>>>> Trying again.
>>>>>>>>=20
>>>>>>>> There are no header pins.
>>>>>>>>=20
>>>>>>>> Finn
>>>>>>>>=20
>>>>>>>> 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.
>>>>>>>>>=20
>>>>>>>>> Have you looked inside your EC3? Are there 6 pin ICSP headers =
for in circuit programming like he EC2?
>>>>>>>>>=20
>>>>>>>>> Would like to hear from Tracy or someone else that has =
experience programmed the EC3.
>>>>>>>>> We also need the config data for the compiler.
>>>>>>>>>=20
>>>>>>>>> Steve
>>>>>>>>>=20
>>>>>>>>>=20
>>>>>>>>>=20
>>>>>>>>>=20
>>>>>>>>>=20
>>>>>>>>>> On 15 Jun 2019, at 9:03 pm, Finn Lassen =
finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
>>>>>>>>>>=20
>>>>>>>>>> I hope that's not true. What makes you think that?
>>>>>>>>>>=20
>>>>>>>>>> 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.
>>>>>>>>>>=20
>>>>>>>>>> I still need to download MPLABS andget familiar with that, =
but that's several weeks in the future.
>>>>>>>>>>=20
>>>>>>>>>> Finn
>>>>>>>>>> (Currently fighting with the RV-4 cowl and trying to =
determine which radiator(s) and oil cooler to use.)
>>>>>>>>>>=20
>>>>>>>>>>=20
>>>>>>>>>> On 6/15/2019 6:05 AM, Stephen Izett stephen.izett@gmail.com =
wrote:
>>>>>>>>>>> Hi Fin
>>>>>>>>>>>=20
>>>>>>>>>>> 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.
>>>>>>>>>>>=20
>>>>>>>>>>> Does anyone else have the details re programming the EC3 =
etc.
>>>>>>>>>>>=20
>>>>>>>>>>> Steve Izett
>>>>>>>>>>>> On 11 Jun 2019, at 10:07 pm, Stephen Izett =
stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
>>>>>>>>>>>>=20
>>>>>>>>>>>> See pdf of an EC2 circuit board showing in-circuit =
programming headers. The EC3 will be similar.
>>>>>>>>>>>> <EC2 Board.pdf>
>>>>>>>>>>>>=20
>>>>>>>>>>>>> On 11 Jun 2019, at 9:10 pm, Finn Lassen =
finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> 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
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> 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
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> What is a 6-way header?
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> 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
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> Finn
>>>>>>>>>>>>>=20
>>>>>>>>>>>>> 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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