What are the best sources of documentation available to the public to learn the basics of VxWorks? I’m just starting and I find it quite hard to find guides, the best thing I found is the wrdbg docs in the sdk, which are actually not really useful since I have nothing to debug yet ;).
You could start with the VxWorks overview which is available here. Keep in mind that some of the information refers to features like Wind River Workbench and project management tools which are not available in the publicly available SDKs.