Was Cygnus eCos Sourceware page; Sourceware was Cygnus term for their free, open source software; then was Red Hat page. This was/is the page where open source aspects of eCos are arranged. Descriptions, documents, fora, downloads.

Commercial provider, maintainer of eCos RTOS; no royalty or license fee, highly configurable (300+ parameters) for embedded systems, runs on most major processors; founded 2002; software, consulting, development, resources. [Open Source]