View source for Wrigley 3G

It is a custom digital baseband architecture (DBB).
It consist from:

# DSP Processor - TMS320C55x+ - based
# MCU (general purpose processor) - ARM9 - based

Both communicated with each other over the shared memory

[[File:gsm-modem.png|800px]]

Source DIA file: [http://droid-developers.org/files/diagrams/Wrigley3G.dia Wrigley3G]

As and AP (OMAP3430) Wrigley3G use one memory chip, but another partition.

== Reverse engineering ==

You can use [http://rada.re/ radare2] tool for both c55x+ and arm disassembly.
For example:

  $ r2 -a c55x+ some_c55x_plus_binary.bin

It do basic jump analysis too.