[Diy_efi] Mopar PCM
David Cooley
n5xmt at bellsouth.net
Wed Oct 27 12:55:39 GMT 2004
--===============026933498167871495==
Content-Type: Multipart/Alternative;
boundary="------------Boundary-00=_JFU8G6G0000000000000"
--------------Boundary-00=_JFU8G6G0000000000000
Content-Type: Text/Plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
As I said, even the factory flash file looks identical to what is in the
flash proms... it is both flash concatenated into a single file with a
checksum so the DRB can check for file corruption before it applies the
flash. The flash appears to be strictly data, and no code at all. I iha=
ve
to set up SCI direct to the CPU's to see if I can dump the ROM. Once I d=
o
that I will have a better idea what is going on... and the info I have i=
s
not speculation... I have received it from a person that works for a
company that assembles, programs, reworks and tests the PCM's for Chrysle=
r.=20
96 and newer Chrysler PCM's are a totally different animal than the 95 an=
d
earlier units.=0D
=0D
-------Original Message-------=0D
=0D
From: A list for Do-It-Yourself EFI=0D
Date: 10/26/04 22:42:52=0D
To: diy_efi at diy-efi.org=0D
Subject: Re: [Diy_efi] Mopar PCM=0D
=0D
again a dump wont do you any good. every piece of chyrsler code ive ever
seen has a copyright in asccii test at the bottom of the rom. these do no=
t.
the only clear reasoning is that the adress line are muxed or something
during programming. this is not even remotely beyond the capability of th=
e
68hc vriants running in these ecms. =0D
=20
--------------Boundary-00=_JFU8G6G0000000000000
Content-Type: Text/HTML;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; charset=3Diso-8859-=
1">
<META content=3D"IncrediMail 1.0" name=3DGENERATOR></HEAD>
<BODY style=3D"BACKGROUND-POSITION: 0px 0px; FONT-SIZE: 12pt; MARGIN: 5px=
10px 10px; FONT-FAMILY: Arial" bgColor=3D#ffffff background=3D"" scroll=3D=
yes ORGYPOS=3D"0">
<TABLE id=3DINCREDIMAINTABLE cellSpacing=3D0 cellPadding=3D2 width=3D"100=
%" border=3D0>
<TBODY>
<TR>
<TD id=3DINCREDITEXTREGION style=3D"FONT-SIZE: 12pt; CURSOR: auto; FONT-F=
AMILY: Arial" width=3D"100%">
<DIV> As I said, even the factory flash file looks identical to what=
is in the flash proms... it is both flash concatenated into a single fil=
e with a checksum so the DRB can check for file corruption before it appl=
ies the flash. The flash appears to be strictly data, and no code a=
t all. I ihave to set up SCI direct to the CPU's to see if I can du=
mp the ROM. Once I do that I will have a better idea what is going =
on... and the info I have is not speculation... I have receiv=
ed it from a person that works for a company that assembles, programs, re=
works and tests the PCM's for Chrysler. 96 and newer Chrysler PCM's=
are a totally different animal than the 95 and earlier units.</DIV>
<DIV> </DIV>
<DIV id=3DIncrediOriginalMessage><I>-------Original Message-------</I></D=
IV>
<DIV> </DIV>
<DIV id=3Dreceivestrings>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>From:</B></I> <A href=3D"m=
ailto:diy_efi at diy-efi.org">A list for Do-It-Yourself EFI</A></DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>Date:</B></I> 10/26/04 22:=
42:52</DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>To:</B></I> <A href=3D"mai=
lto:diy_efi at diy-efi.org">diy_efi at diy-efi.org</A></DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>Subject:</B></I> Re: [Diy_=
efi] Mopar PCM</DIV></DIV>
<DIV> </DIV>again a dump wont do you any good. every piece of chyrsl=
er code ive ever seen has a copyright in asccii test at the bottom of the=
rom. these do not. the only clear reasoning is that the adress line are =
muxed or something during programming. this is not even remotely beyond t=
he capability of the 68hc vriants running in these ecms.=20
<DIV> </DIV></TD></TR>
<TR>
<TD id=3DINCREDIFOOTER width=3D"100%">
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%">
<TBODY>
<TR>
<TD width=3D"100%"></TD>
<TD id=3DINCREDISOUND vAlign=3Dbottom align=3Dmiddle></TD>
<TD id=3DINCREDIANIM vAlign=3Dbottom align=3Dmiddle></TD></TR></TBODY></T=
ABLE></TD></TR></TBODY></TABLE></BODY></HTML>
--------------Boundary-00=_JFU8G6G0000000000000--
--===============026933498167871495==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
diy_efi mailing list
diy_efi at diy-efi.org
http://lists.diy-efi.org/mailman/listinfo/diy_efi
--===============026933498167871495==--
More information about the Diy_efi
mailing list