![]() The sockets came but there were some resistors in the way, since it's bigger than the rom chip so I had to modify the socket a bit. Well it's been unremarkable but progress none the less. I'm thinking the E46 csl tune would have some more keys to the puzzle.Īnyway if anyone has interested I can share the ROM file and answer any question on things I know thus far. I also spent some time generating binaries from the 0das so I can overlay them over a working rom image and compare them to help find locations of value. Most of the last 2 weeks on this has been getting organized and figure a lot of the hardware details, Siemens did the layout for the board I think and they're assholes, there a few items that had me scratching my head for a few days till I figure it out. The "tune" or data segment is located at 0x07800 and doesn't follow the DME conventions of "maps". Once it's up it's pretty much interrupt driven waiting for inputs, timers, adc, ect or CAN messages. I'm gonna verify this once I get the ROM sockets, been waiting over a month for them(I think the post office lost them) as I'm not soldering and soldering a rom chip every time I want to test a change. The entry point is 0000 where the reset handler sits, it looks like when it comes it checks if it's in flashing mode or run mode based on some values in ROM. The processor is a pain the *** in that the addressing is segmented like the old x86 is in non 386 mode but the segments are referenced kind of funny. The Processor also has a few k internal ram that looks to be purely used for the stack. It has one external 8k SRAM chip as well as the AM29F400 512k ROM chip, same one used in the MSS54. Some basic hardware details, the processor is a C167CS, it's the romless version running at 25mhz. I have a rom file I can share, but probably shouldn't post and can provide you some hardware details, obviously I'm hoping someone else has interest too. This annoys me to no end and would be considered a win in my opinion. ![]() My main goal as of today is just to get the euro tune starting in S5 as the US one does. ![]() I'm on the hunt for one more TCU, so if anyone has a spare When I decide it was time to take on this project. The SMG computer, a few years ago I helped a forum member and they sent me a spare TCU, it's sat in the garage till last month. I'm fairly happy with what I've done on the DME side of things and decided to take on a new challenge. ![]()
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