All Forums  MCUmall Forums  Automobile engine ECU, Immo, Air bag chip tunning  Address lines scrambled

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by sabercatpuck[/i] [br]I had already unsoldered the chip (and installed a socket). While making a copy of the data is not a problem with the scrambled address lines, trying to dissaemble the code is. It is like putting a piece of mail in a downtown holdout and expecting it to end up in the suburbs, makes it very difficult to get anything out of the disassembly. The adaptor was actually a bunch (32 to be specific) of wires (thin stuff from a piece of network cable) that I soldered on to the ends of a couple ribbon cables and then inserted into a socket with the chip, with the address lines going to where they needed to to get unscrambled data from the chip. On a side note, when I tried to change a few things and flash it I apparently had a slightly different version of the chip (both 28f010's) that would not flash it, but that problem I have straightened out. I still may need to get a logic analyzer to watch the data flow though. Anyone know a way to tag into the PCI bus? You have 64 high speed data lines available for all your decoding needs if you can get at em. I have seen some on the parallel port, butt they only give you 8 bits which only lets you see the data. [/quote]    Insert an Image File Check here to include your profile signature.