Search found 3455 matches

by Tazzi
Sat Mar 15, 2025 12:33 pm
Forum: GM Can bus computers
Topic: Let's Talk E92 Flash,EEPROM and Slave
Replies: 10
Views: 3170

Re: Let's Talk E92 Flash,EEPROM and Slave

tpepmeie wrote: Fri Mar 14, 2025 11:08 am Update- I used a vin change utility and it changed. From there, the SPS flash completed normally.
It will now have mismatch security code in it, which makes the ECU basically useless unless disabling the security in the tune.
by Tazzi
Sat Mar 01, 2025 12:11 pm
Forum: GM Can bus computers
Topic: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza
Replies: 688
Views: 484823

Re: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza

Part of the fun of a developer is learning how to protect your software. The 'licensing' I had on the free application I was distributing at the time was in no way designed to stop a good hacker, it was just a deterrent against unauthorized modifying so I could ensure any problems that were happenin...
by Tazzi
Fri Feb 28, 2025 5:22 pm
Forum: GM Can bus computers
Topic: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza
Replies: 688
Views: 484823

Re: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza

I find it comical someone is trying to sell a software with issues. Good luck providing support for an app that will brick an e38/e67 randomly due to a kernel bug haha. :lol:

What a laugh, pay $150 to brick your computer. Karma for those stupid enough to do so :lol:
by Tazzi
Wed Feb 26, 2025 10:20 am
Forum: GM Can bus computers
Topic: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza
Replies: 688
Views: 484823

Re: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza

I did not do any further releases due to various bugs in the kernel and application which I never got around to fixing.
by Tazzi
Wed Feb 26, 2025 10:18 am
Forum: GM LS1 512Kbyte and 1Mbyte and newer
Topic: E54 PCM, force load of paramater block from flash to sram?
Replies: 10
Views: 1623

Re: E54 PCM, force load of paramater block from flash to sram?

I deal with this a bit for all PCM types (VPW and CAN) and its more related to allowing the PCM the proper time to reload. Typically after a full reflash, you will need to then turn ignition off, then wait a good 1minute before then powering back on. You can watch the amperage drop further after ~40...
by Tazzi
Mon Feb 10, 2025 9:11 am
Forum: GM Can bus computers
Topic: Let's Talk E92 Flash,EEPROM and Slave
Replies: 10
Views: 3170

Re: Let's Talk E92 Flash,EEPROM and Slave

The emulated eeprom does not get the slave OS/cals written to it.

The slave operating system and calibrations are written to the separate slave processor on the circuit board.
For example, an E38 has a MC9S12 slave processor, whereas the main processor is a MPC562.
by Tazzi
Mon Feb 10, 2025 9:08 am
Forum: GM Can bus computers
Topic: E38 odometer and prog date
Replies: 6
Views: 1786

Re: E38 odometer and prog date

Location of those parameters can slightly vary depending on the operating system of the ECM. This is why people get corrupted ECMs (semi bricked) from flashing an operating system into an E38 that uses slightly different emulated eeprom offsets, which results in the seed,key,vin,ect all being in wro...
by Tazzi
Fri Feb 07, 2025 10:41 am
Forum: GM Can bus computers
Topic: e38-t43-bcm linking question
Replies: 6
Views: 1459

Re: e38-t43-bcm linking question

I am guessing you are referring to a 2010 Holden VE Ute. So there are three VERY important things here: 1) The ECM needs to be the correct service number to match a 2010 variant (If that is what you original bought from). Buying any old ECU from any year will result in problems, or brick the engine ...
by Tazzi
Tue Feb 04, 2025 8:55 am
Forum: Hardware
Topic: MDI Clones and Techline
Replies: 50
Views: 26297

Re: MDI Clones and Techline

From my experience, most modules are safe to program as their internal boot code will prevent a permanent brick until a completed OS/Cals is performed. ALTHOUGH, some modules cause much better headaches then others. Perfect example is the 2013-ish to 2019 GMC/Chev instrument clusters, some variants ...
by Tazzi
Mon Feb 03, 2025 9:16 am
Forum: GM Can bus computers
Topic: Let's Talk E92 Flash,EEPROM and Slave
Replies: 10
Views: 3170

Re: Let's Talk E92 Flash,EEPROM and Slave

The slave OS/Calibrations are usually on a separate processor, which is the "slave" to the master CPU The master and slave communicate via SPI (typically). Update routines can vary between ECUs, but sometimes a custom kernel is uploaded to the slave to allow updating it. Othertimes the sla...