They adhere to the GPL by releasing the source code of C30/ASM30. That is why we have already people releasing Debian and Redhat Linux version of C30. However it seems there is no legal means of redistributing the libraries and other things yet. http://noel.feld.cvut.cz/dspic/ http://www.baycom.org/~tom/dspic/ http://forum.microchip.com/tm.asp?m=94243 The optimizer is closed source though. The license manager is closed-source but not very smart. ;-) Regards, Xiaofan >From C30 README: 2. GNU General Public License With the exceptions noted below, the dsPIC tools are written and distributed under the GNU General Public License (GPL) which means that its source code is freely distributed and available to the public. The source for the tools under the GNU GPL may be downloaded separately from the Microchip WWW web page. You may read the GNU GPL in the file named COPYING located the top level of your install directory. Exceptions to the GNU GPL: pic30-lm pic30-pa sim30 Support code provided for the header files, linker scripts, and runtime libraries are also exceptions to, and therefore not covered under, the GPL. -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] Sent: Monday, November 21, 2005 11:55 AM To: Microcontroller discussion list - Public. Subject: Re: [PIC] "free" version of C30. Chen Xiao Fan wrote: > Anyway > they are smart to use GCC as the base. Can't one use the GPL virus to get the source out of them? --Michael -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist