From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: EC3 software for Renesis RX-8/LS2 coils fixed and
 uploaded
Date: Sun, 21 Jun 2020 09:32:50 +0800
References: <list-397660@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-397660@logan.com>
Message-Id: <C0681B24-C791-40EF-A524-16F68D621E98@gmail.com>

Good call Finn.
Yes, if someone is able to send us their PIC chips.

I was thinking burn two new chips and sending it to the recipient and =
they replace their A processor and trial with B as the backup old =
settings.
When they are comfortable that all is good they can replace the B =
processor.
Does mean they need to retune.=20

Steve Izett

`

> On 21 Jun 2020, at 8:32 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>=20
> Well, maybe not.
>=20
> Do you have a way to read the program memory in your chip(s)? Like =
PICKit2, PICKit3 or meLabs U2 and 44-pin PLCC socket adapter.
>=20
> The only difference between the files resulting from compiling the =
source code (only difference being LS1 and LS2) is a couple of bytes in =
a 21KB big hex file:
> :100F800003D0782FF8D712003B693C691200420E5B
> :100F800003D0782FF8D712003B693C691200070E96
>=20
> So, if you could send me the HEX file from the chip program memory =
read, it would be easy to see if the LS1 version match what my compiler =
outputs and, if so, to reprogram just the two bytes in your chip. That =
would probably be the easiest because you wouldn't have to re-tune as =
you would with a brand new chip being programmed.
>=20
> But the program difference between LS1 and LS2 coils is only 0.3ms =
dwell time.
> LS1: 4.3ms
> LS2: 4.0ms
>=20
> So with your EC3, your LS2 coils are being charged about 8% longer =
than perhaps desired. Slightly higher current draws to the coils, but =
more energy to the plugs.
>=20
> Probably doesn't amount to a hill of beans.
>=20
> BTW, the above numbers are target numbers. On a scope you'll see it =
vary a bit.
>=20
> I was just being stubborn and wanted find out why it didn't work with =
the LS2 programming for RX-8 engine type and fix the programming source =
code. Just call me a nerd.
>=20
> Finn
>=20
> On 6/20/2020 1:08 PM, Bobby J. Hughes bhughes@qnsi.net wrote:
>> Finn,
>> =20
>> Copying the configuration make a lot of since. My EC3 was programmed =
for LS1 coils but I was using LS2 coils for the last 100 + hours. =
That=E2=80=99s one variable I would like to change. No double the effort =
would be very time consuming.  =20
>> =20
>> Bobby
>> =20
>> =20
>> =20
>> =20
>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20=

>> Sent: Thursday, June 18, 2020 12:10 PM
>> To: Rotary motors in aircraft
>> Subject: [FlyRotary] Re: EC3 software for Renesis RX-8/LS2 coils =
fixed and uploaded
>> =20
>> Hi Bobby,
>>=20
>> Actually Tracy does have a few new EC3 boards. I didn't ask how many.
>>=20
>> The hot question really is how big is the demand (quantity)?
>>=20
>> I probably have enough data from him (schematics, parts lists, PCB =
layout) to get a production run done.
>>=20
>> Tracy is serious about having retired. I was really, really lucky to =
get his help.
>>=20
>> I think a big reason for his decision to retire is to have time to =
enjoy life. I think the majority of his time before his retirement was =
spent on support (phone, emails).
>>=20
>> He really has no economic incentive to come out of retirement.
>>=20
>> So while we could get a production run done, I doubt anyone would be =
willing to spend time on support -- certainly not for new installations. =
Also the variety of engines, accessories and specialized programming for =
some installations would make it a nightmare to program the chips. =
Solution for that would probably be to read the working chips for your =
installation and then program the new chips with that, but then some =
would not get the latest features (closed loop, auto program using EC3 =
w/o EM).
>>=20
>> I thought I might take it on, but having second thoughts :)
>>=20
>> Will probably be a few days before I'm ready to roll the fuselage out =
of the hangar and do engine runs.
>>=20
>> Finn
>>=20
>> On 6/18/2020 10:18 AM, Bobby J. Hughes bhughes@qnsi.net wrote:
>> Thanks Finn. I downloaded the files and notes. Once you are confident =
the hardware and software works properly we might consider a onetime =
production run of EC3=E2=80=99s for existing EC2/3 owners. I would like =
to have a tested spare available. It would likely take Tracy=E2=80=99s =
involvement to facilitate the board build or at least provided the =
suppler information and proper Rev number.=20
>> =20
>> I really appreciate the work you, Steve Izett and Steve B. are doing.=20=

>> =20
>> Bobby
>> =20
>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20=

>> Sent: Wednesday, June 17, 2020 6:11 PM
>> To: Rotary motors in aircraft
>> Subject: [FlyRotary] EC3 software for Renesis RX-8/LS2 coils fixed =
and uploaded
>> =20
>> Here it is:
>> =
https://drive.google.com/drive/folders/1mVzPOxUwcGUlPizxnRF40nUyKBzfT4DC?u=
sp=3Dsharing
>> It's EC3closedloop.zip.
>>=20
>> You may want to grab it now in case Google decides to close my =
account :)
>>=20
>> You can program the 18F452 chips directly using the EC3CL8.HEX file, =
or open EC3ClosedLoop.mcp in MPLAB IDE, compile and program. This is for =
RX-8 (EC3 engine type A8), LS2 coils (D585), large secondary injectors, =
default is wide band O2 sensor.
>>=20
>> Turns out Tracy has never programmed or delivered an EC3 for Renesis =
with LS2 coils.
>> Software was missing code to load LS2 coils dwell time.
>>=20
>> I added Steve's code for configuration bits so don't have to remember =
what to set them to when programming.
>> I set all protection bits to zero to avoid any chip reprogramming =
troubles, but you could change to:
>>=20
>>=20
>> ; CONFIG6L
>>   CONFIG  WRT0 =3D ON             ; Write Protection bit (Block 0 =
(000200-001FFFh) write protected)
>> Finn
>>=20
>> ENG            EQU    0xA8      ;PUT ENGINE TYPE CODE HERE AND CHECK =
**** ALL **** FLAGS BELOW!!!!!!!!!!!!!!!!! =20
>>=20
>> N109TC        EQU 0x00    ;N109TC USES A DIFFERENT assignment of coil =
drivers  CLEAR for ALL except N109TC !!!!! and KERMIT unit   20B =
controllers
>>=20
>> DIAG        EQU 0x00        ;DIAG =3D=3D1 ALLOWS DIAGNOSTIC USE OF =
02H&L
>>=20
>> ;  *****************     CHECK ALL FLAGS BEFORE PROGRAM MING CHIPS  =
!!!!!   **************************************************
>>=20
>> ;   ***************    DWELL TIME FLAGS   *SET ONLY ONE*      =
***********************************************
>>=20
>> RX8COIL        EQU    0x00        ;1=3D 2.6MS DWELL TIME  (RX-8 COIL)
>> RX7COIL        EQU 0x00        ;1=3D 3.5MS DWELL TIME USED   (also =
used for A7 2007 option)=20
>> LS1COIL        EQU    0x00        ;1=3D 4.3 MS DWELL USED=20
>> HONDACOIL    EQU 0x00        ;1=3D 1.7 MS DWELL            (A REALLY =
TINY COIL)
>> LS2COIL        EQU    0x01        ;1=3D 4.0 MS DWELL       =20
>>=20
>>  =20
>> TURBO        EQU    0x00        ;0 =3D NA, 1 =3D TURBO VERSION     =
(BIT 0 SET IN ECINFO IF TRUE)
>> BFACTOR        EQU    D'20'        ;BOOST RETARD FOR IGNITION TIMING  =
lower value =3D more boost retard (25 IS USED FOR MOST ROTARY 20 on =
03-05-09,
>> LGSEC        EQU    0x01        ;0 =3D PRI & SEC INJECTORS SAME SIZE  =
1 =3D LARGER SECONDARY INJECTORS (RENESIS 4 port)
>> WIDEBAND    EQU 0x01        ;0 =3D NARROWBAND O2 SENSOR IN USE, 1 =3D =
WIDEBAND SENSOR IN USE.
>> TEMPSENSOR    EQU    0x00        ;0 =3D THERMISTOR, 1 =3D LM34
>> MAPSENSOR    EQU    0x00        ;0 =3D MPX4250 SENSOR, 1 =3D MPX4115 =
(EARLIER VERSION OF EC2 ONLY)
>> BUSENSOR    EQU    0x00        ;0 =3D NO BACKUP SENSOR, 1 =3D BACKUP =
INSTALLED (0xA8,0xA9,AB,AD,B1,B2,B4 0-200 ENGINE ONLY)
>> BREW        EQU    0x00        ;0 =3D SET TO 1 FOR 3RD GEN 13BREW =
ENGINES :  COMPENSATES FOR 5 DEG EARLIER 3RD GEN TIMING OF CAS
>> ONEINJ        EQU    0x00        ;0 =3D NORMAL 2 INJECTOR PER ROTOR  =
1 =3D 1 INJ PER ROTOR  (NOT RECOMMENDED)
>> CONT        EQU    0x00        ;0 =3D NORMAL 0xA9 ENGINE, 1 =3D =
CONTINENTAL/Lyc VARIENT (also sets bu at 18 geg before primary)
>> EMT            EQU    0x00        ;0 =3D A9 W/ TRIG @ 6 DEG ATDC   1 =
=3D TDC @ TOOTH 11 (ELECTROMOTIVE TIMING SPEC) also sets BU at 180 deg
>> A72007        EQU    0x00        ;0 =3D PRE 2005 SUBE EJ25   1 =3D =
2005 OR LATER EJ25 W/ RX-8 TYPE CAS         =20
>> WTF         EQU 0x00        ;0 =3D normal version  1 =3D BRAT  - AKA =
- WhatTheFuck project version with transmission control functions       =20=

>>=20
>> TBINJ        EQU    0x00        ;1=3D THROTTLE BODY INJECTION FLAG=20
>> LS2_60_2    EQU    0x00        ;1=3D LS2 ENGINE EQUIPPED W/60-2 TOOTH =
TRIGGER WHEEL  (USE ENG CODE 0xAB)
>> =20
>>=20
>> Disclaimer
>>=20
>> The information contained in this communication from the sender is =
confidential. It is intended solely for use by the recipient and others =
authorized to receive it. If you are not the recipient, you are hereby =
notified that any disclosure, copying, distribution or taking action in =
relation of the contents of this information is strictly prohibited and =
may be unlawful.
>>=20
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>>=20
>> =20
>>=20
>=20
>=20
>=20