How to use the "Dump RAM on ALT +/- Press" feature in CHDK? (If I press ALT button and the +/- button
simaltaneously I get nothing on card,so I must be doing something wrong!)
1) in debug parameters menu select corresponding checkbox.
2) leave alt mode
3) press +/- button - blue led must be lit while writing dump to card
And after obtaining the dump,
what is the method to load it in IDA (start address,loading size etc)?
why would you like to load it into ida?
anyway
if file size is 33554432 bytes - loading address is 0
if file size is 33548032 bytes - loading address is 1900
loading size - full (it is suggested by ida automatically)
NOTES:
1) loading this file into ida without ROM dump is useless
2) it is usefull to analize ROM dump with RAM segment loaded but ida analysis of this pair of segments (ROM/RAM) is very slow (it can take several hours. I once started analysis in the evening and have seen at morning that it is still not finished)
3) I tried to load ROM/RAM dumps in a such way: a) load ROM into ida; b) add RAM segment (load additional bin file); c) start analysis
4) using of full ROM dump (8mb) can give you full understanding of inner working of camera but can confuse you due to dublicate section of code. i would suggest you to use primary bin only
5) I would suggest you to ask
Cail on tips and tricks about loading/analysis of this pair into ida
