| First thing to do is have a look at the datasheet <http://www.eonssi.com/upfile/p200892917341.pdf>. I was hoping that it'd be SPI or I2C, but it's a big parallel flash, so reading it is going to take some hardware. Comes in two packages a TSOP and a BGA. I'm hoping you have the TSOP. If you've got a TSOP, you can get a socket for it / probe it. You can probably also get a socket for the BGA but you might be paying out the nose. I like the JTAG approach as well. Assuming it's connected to a processor or FPGA that's got boundary scan, even if the rest of the system isn't cooperative you can bitbang the contents of the flash out using the JTAG hardware. The JTAG silicon - even if it's on the same die as the processor / FPGA is totally separate. It's something like a tiny state machine. Read up on it, really powerful. <https://en.wikipedia.org/wiki/Boundary_scan> Another option is to transplant the interesting flash from the dead device to an identical working device. Use the working device to read out the contents of the memory. This will require some soldering skills. Or.. you can pull it off the board, and get a programmer. The industry std is Xeltek but they're $$$$. I've got a TL866, works pretty well. <http://www.eevblog.com/forum/blog/eevblog-411-minipro-tl866-... Or.. you can read the datasheet and build yourself something with an arduino. You'll run out of pins though, so maybe a pro? or maybe port expanders. Good luck! |
The TL866 I suggested does support your part.
If you've got the flash in a TSOP - another trick for getting at the flash is to find a FPC cable that has the same pitch as your TSOP and solder it down on the board. FPCs with varying pitches are available at Digikey etc. That way you don't have to remove the flash from the board.