OpenPCD, OpenPICC and SIMtrace device firmware

This repository contains the C-language firmware of a couple of different USB devices that share nothing in common but the fact that they contain and Atmel AT91SAM7S microcontroller and that Harald Welte was involved in their development.

The OpenPCD 1.x and OpenPICC 1.x devices are pretty much obsolete these days, so SAM7S based SIMtrace 1.x is the only relevant platform these days.

Osmocom SIMtrace is a USB-attached peripheral device that is primarily used to sniff the traffic between a SIM/USIM card and a Phone or cellular modem.


The official homepage of the project is https://osmocom.org/projects/simtrace/wiki/

GIT Repository

You can clone from the official openpcd.git repository using

git clone git://git.osmocom.org/openpcd.git

There is a cgit interface at http://git.osmocom.org/openpcd/


Ther homepage (see above) contains a wiki with information as well as the SIMtrace user manual.

Mailing List

Discussions related to SIMtrace are happening on the simtrace@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/simtrace for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.


Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We use accept code/patch submissions via e-mail to the above-mentioned mailing list.