Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

The basis about library

I am always confused by the usage and definition of library. Although currenly it looks like it did not affect my FPGA design and development, but I am eager to have a clear understanding about them....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

--- Quote Start ---

VHDL doesnt care where the source files are on disk. Thats up to the tool to decide. the library is just a concept/virtual container for code, so a single library can be mapped from difference sources.

Btw. Quartus will just ignore your nicely built library structure. It just searches all source for matches (it only cares where theres a conflict).

--- Quote End ---

Thanks very much, Tricky. So can I understand like this: Library just tell the tools where to found the source files (HDL files). When we simulate in Modelsim, we need precompiled libraries, they are actually precompiled source files, rght?

Sorry, I am still confusing by these.

Thanks.