Third-party open-source projects
1-CORE Technologies has NO affiliation with the following projects. They were once available for download from their official websites, but have disappeared by now. These projects have been released under open-source licenses which explicitly allow free redistribution.
Note that we aren't able to provide free support for the third-party open-source cores.
LEON2 is an open-source CPU core that is an implementation of the 32-bit SPARCv8 architecture. It has been written by Jiri Gaisler. This version has been removed from the official site, Aeroflex Gaisler, in favor of the newer version, LEON3. The new version has many improvements, but some people can still prefer the old one because of its more liberal license LGPL, which allows free commercial use (under certain conditions). As for LEON3, it is licensed under the more strict license GPL that allows free use only in open-source projects (a commercial license can still be acquired from Aeroflex Gaisler to use LEON3 in closed-source projects).
DSPuva16 is an open-source small 16-bit CPU core. It has an interesting feature of being very small (comparable to PicoBlaze) and yet containing a hardware multiplier.
The DSPuva16 core has been written by Santiago de Pablo from the University of Valladolid.
The software has been written by Carmen Cascón.