Opensource LS Flashing(It's Closer Than You Think)

**Xnke** · 06-11-2018

Right now there are some pretty complete XDF's for the 512K PCMs, as you really only want to use the 2002 unified OS for most swaps. The unified OS lets you easily swap blocks to get the engine/transmission combination right, and has the widest coverage of features out of all of the other OS's.

As to the 1mb PCMs, we haven't had a free/inexpensive way to read/write them that didn't already have the ability to edit the PCM, so not too many people have messed around with them yet. Once your tool is released, I don't expect it will take very long to get a WIDE variety of XDF/ADX contributions. I believe we already have a few people working on the blue/clear PCM as well, I've done some work with it and EJ282 has done some. Those applications will likely be slower to come to fruition, but as the hardware is very similar, it won't take too long to get them all going, I think.

**PeteS** · 06-12-2018

Originally Posted by Xnke

Right now there are some pretty complete XDF's for the 512K PCMs, as you really only want to use the 2002 unified OS for most swaps. The unified OS lets you easily swap blocks to get the engine/transmission combination right, and has the widest coverage of features out of all of the other OS's.

As to the 1mb PCMs, we haven't had a free/inexpensive way to read/write them that didn't already have the ability to edit the PCM, so not too many people have messed around with them yet. Once your tool is released, I don't expect it will take very long to get a WIDE variety of XDF/ADX contributions. I believe we already have a few people working on the blue/clear PCM as well, I've done some work with it and EJ282 has done some. Those applications will likely be slower to come to fruition, but as the hardware is very similar, it won't take too long to get them all going, I think.

Some of the people that wrote the Xdf's your referring to are the one's working on the 1mb Xdf's now

There is a VERY good change the other Pcm's your talking about would be compatible with the software we are working on but would need a different flash kernel. The commands to read haven't changed much over the years....even the CAN pcm's use the same commands with a couple of extra bytes tacked onto the end.

**PeteS** · 06-12-2018

This just in.........Android is now a up and running. Tested in vehicle tonight using an Allpro dev board with Bluetooth Hc-5 module....verified my Bin file was correct with EFI Live and it passed with flying colors

**Xnke** · 06-13-2018

On the blue/clear PCM-when I say the hardware is very similar-I mean it's *VERY* similar. It's used with the LS4 V8, as well as most all the 60*v6's and the shortstar V6's, so as you say-might need a slightly altered flash kernel, but it is contemporary to the 512K and 1Mb LS PCM's.

LSDroid is looking pretty cool-combined with a decent OBDII datalogger, it could be pretty powerful.

**kur4o** · 07-19-2018

I see your bigest obstacle is the flash routine.
Can you add an option for user provided flash routine with some small config file containing data as seed/key algo used and some basic stuff as commands and how the bin is dumped to memory.

I found that all obd2 gm pcms support mode 3a and 3b to stream data. When the PCM is configured It starts to dump continuous data with 8 messages containing 6 bytes of data each. So you got 48 bytes with super fast refresh rate. It will be nice addition to read/write functionality. I know that elm devices have some built in inability to recieve more than one message. That can easily be overcomed with monitor all command when the pcm is configured and starts dumping the data.

If you want to add it to the android application I can give you more details.

**Xnke** · 09-02-2018

How's this going? Haven't heard from you in a while, Pete!

**PeteS** · 09-05-2018

Originally Posted by Xnke

How's this going? Haven't heard from you in a while, Pete!

Waiting for Antus to finish a kernel for the Pcm Hammer or at least release some variant of the flash kernel we used for development so people can use this for at least reading with and any remaining bugs could at least be sorted out.