http://www.diy-efi.org/twiki/bin/view/Gmecm The Gmecm web of TWiki. TWiki is a Web-Based Collaboration Platform for the Enterprise. en-us Copyright 2012 by contributing authors TWiki Administrator [sravet@diy-efi.org] The contributing authors of TWiki TWiki http://www.diy-efi.org/twiki/bin/view/Gmecm http://www.diy-efi.org/twiki/pub/TWiki/TWikiLogos/T-logo-140x40-t.gif http://www.diy-efi.org/twiki/bin/view/Gmecm/TimingChip The 16045148 is an interesting chip. It offloads a lot of processing from the main CPU. I think it's weird that it doesn't have an interrupt output. I would expect ... (last changed by CliffHarris) 2011-06-15T05:35:12Z CliffHarris http://www.diy-efi.org/twiki/bin/view/Gmecm/68HC11MemoryMap Memory Map A memory map is how the processor sees the world. When you design a system with a microcontroller, it uses address lines to control where it reads data ... (last changed by CliffHarris) 2011-05-31T07:28:20Z CliffHarris http://www.diy-efi.org/twiki/bin/view/Gmecm/SPI SPI stands for serial peripheral interface. Here is a description. This is used to offload some of the processing from the main processor to other chips on the circuit ... (last changed by CliffHarris) 2011-05-30T22:30:47Z CliffHarris http://www.diy-efi.org/twiki/bin/view/Gmecm/68HC11GMVariant Differences from stock 68HC11 This applies to the 1227730, 749: From: Ludis Langens Date: Mon, 15 Feb 1999 04:37:26 0800 Subject: GMP4 MPU information The architecture ... (last changed by CliffHarris) 2011-05-30T22:07:40Z CliffHarris http://www.diy-efi.org/twiki/bin/view/Gmecm/GmecmScratch This is a scratch area for uploading pictures and other files of a temporary nature. Since the list rejects attachments, this is the place to put those attachments ... (last changed by BrianKoontz) 2009-09-10T22:03:52Z BrianKoontz http://www.diy-efi.org/twiki/bin/view/Gmecm/1227749 1227749 Info This is link to the '749 info on the GMECM web site. http://www.diy efi.org/gmecm/ecm info/1227749/ Ludis's '749 schematics. http://www.cruzers.com/~ludis ... (last changed by BillShaw) 2008-10-13T13:33:20Z BillShaw http://www.diy-efi.org/twiki/bin/view/Gmecm/GmecmPapers From Shannen Durphey converting between DIS and distributor From Robert Rauscher /gmecm/papers/747spark.txt 1227747 used for spark only /gmecm ... (last changed by AaronHampton) 2008-04-22T20:07:50Z AaronHampton http://www.diy-efi.org/twiki/bin/view/Gmecm/WebHome GmecmProjects GmecmFaq EcmInfo MotorolaInfo GmecmPapers GmecmScratch Gmecm Web Utilities WebTopicList all topics in alphabetical ... (last changed by TWikiGuest) 2007-12-30T23:16:37Z unknown http://www.diy-efi.org/twiki/bin/view/Gmecm/UsbVpw USBVPW An VPW to USB converter that will allow connecting any USB equipped PC to a GM OBD2 PCM This project is released under the GPL license. You can read it if ... (last changed by SteveRavet) 2007-09-26T03:37:56Z SteveRavet http://www.diy-efi.org/twiki/bin/view/Gmecm/EcmInfo Information pertaining to specific ECMs 1227747 1227749 C3 information ALDL datastream formats P4 information /gmecm/ecm info/p4 registers ... (last changed by TWikiGuest) 2007-05-27T22:05:55Z unknown http://www.diy-efi.org/twiki/bin/view/Gmecm/GMtoMegasquirtadapter TWikiGuest 28 Apr 2007 Prior to the advent of megasquirt I was a regular here on GM DIY, but I was frustrated with the need to burn eproms and when megasquirt came ... (last changed by TWikiGuest) 2007-04-28T03:56:28Z unknown http://www.diy-efi.org/twiki/bin/view/Gmecm/WebTopicCreator Prior to the advent of megasquirt I was a regular here on GM DIY, but I was frustrated with the need to burn eproms and when megasquirt came out I jumped. I have recently ... (last changed by TWikiGuest) 2007-04-28T03:51:49Z unknown http://www.diy-efi.org/twiki/bin/view/Gmecm/DISdist I've attached a calibration (2pt2 dis.bin) which I wonder if you'd be kind enough to forward to the list ftp site, along with a general post to the list. This calibration ... (last changed by SteveRavet) 2007-03-12T19:45:17Z SteveRavet http://www.diy-efi.org/twiki/bin/view/Gmecm/VirtualComVPW Virtual COM VPW Interface This project isn't designed to displace or compete with the UsbVpw but is instead intended to be an alternative and supplemental effort. ... (last changed by TWikiGuest) 2007-01-24T06:34:16Z unknown http://www.diy-efi.org/twiki/bin/view/Gmecm/GmecmProjects GMECM related projects UsbVpw A USB to VPW (GM OBD2 protocol) converter that will allow scan tool functionality as well as reflashing. ChipExtender28 ... (last changed by CraigMoates) 2006-12-25T22:02:29Z CraigMoates http://www.diy-efi.org/twiki/bin/view/Gmecm/ChipExtender28 Chip Extender 28 pin Remote Chip Mounting Solution This device uses a 28 pin ribbon mounted dip header, 28 pin ribbon cable (18 24"), 34 pin IDC header, Phillips NC7SZ32M5X ... (last changed by CraigMoates) 2006-12-25T21:56:41Z CraigMoates