Hello,
I'm new in FPGA world. I read some VHDL books and I can create not much advanced, but working projects. Most of my designs I tested on Spartan3. And the only constraints I always use are LOC to assign pins.
It works, but I know that in more advanced projects it is necessary to use other constraints. I read Xilinx tutorials, but don't feel it from them.
I'm trying to find something where it is explained on some real examples, maybe some examples with growing level of difficulty.
Do you know some book, pdf, website?
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