Bootloader: C:0x0000 - C:0x7FFF Manages CAN-Communication and in-field update. Application C:0x8000 - C:0xEFFF Applications is controlled with bootloader over CAN 2.0. Compiled both seperatly and merge the Hex-file. Interrupts and function calls work. At level of 8 successive funtions calls the acces to an struct in Applications XDATA mem is incorrect. The expected pointer is not given. Any adwise?
I'd guess he probably "inherited" the software from someone else. How else could it happen that he already has a really large piece of software and only then finds out that some fairly basic functionality is missing ? As long as we are guessing, this is not the first time a beginner has written a huge project before even understanding what was going on, usually it is "while waiting for the hardware". Erik