I have a little media player box that I'd like to be able to pull the firmware from and run through a disassembler. I'm fairly certain that one of the chips on the board is an SPI flash memory; the trouble is that I can't pull up anything resembling a datasheet on the Web based on its markings.
So to do what I'd like to do, assuming I'm not able to identify the chip, I have to a) confirm that it is indeed an SPI flash chip, or if not, what protocol it is using; b) identify the SCLK, MOSI, MISO, etc. lines; c) somehow solder a header to the chip on the board (it's a 64 pin Type II TSSOP); d) read from the device in-situ while the device is powered up and still connected to its host processor (is this possible?)
Obviously I have not attempted something like this before, so any suggestions for a plan of attack would be much appreciated!