whitequark at whitequark.org
Wed Oct 17 05:50:58 UTC 2012
I have this GSM module called SIM900D. It has several interesting
1. It has builtin commands AT+SIMEI (guess what it does) and
2. It, as far as I know, does not check firmware signature.
3. It has an API (called "Embedded AT") which can be called from the
customer's module running on the same CPU (ARM926EJS).
4. Non-stripped firmware ELFs are available, together with the
descriptions of public API.
Here is a (Russian) page with all of the relevant datasheets collected.
Datasheets are in English.
WBR, Peter Zotov.
More information about the baseband-devel