CC3235

CC3235 #

You’ll have to manually extract it from the flash of the box with a SOP8 clamp directly from the memory or by desoldering it. Reading in-circuit can be tricky, but is possible. I recommend flashrom as tool for that. It may be necessary to use a more recent version of it.

Reading the flash with Pico #

As a probe you may use a raspberry pi pico with the serprog protocol firmware for it.

flashrom -p serprog:dev=/dev/ttyACM0:921600 -r cc32xx-flash.bin --progress

You may do multiple reads and compare the result

flashrom -p serprog:dev=/dev/ttyACM0:921600 -r cc32xx-flash.2.bin --progress
diff cc32xx-flash.bin cc32xx-flash.2.bin #no output = equal

Extract certificates #

You can use the cc3200tool to extract your certificates from the flash dump afterwards.

cc3200tool -if cc32xx-flash.bin -d cc32xx read_all_files extract/

Please continue with flash CA step for the CC3235