Hello,
I have a lot of experience in analog and digital electronics (30 years is quite a lot, I think. The first ten years professionally) and quite a lot in programming (the last 20 years professionally) :-) Well I am no longer young, fact, and I took to such novelties such as Verilog ;-)
Here I am a novice. This is my first layout.
I need a multiplexer and demultiplexer for a device in which I don't have enough space to simply add a board Universal with several CMOS chips.
So I came up with that I would use the GOVIN GW1NZ-1 universal board. The code as below. It is not complicated. It compiles without errors and warnings. It programs without error messages Both to SRAM memory and to embedded FLASH.
Only - after programming the circuit does not work - it does not respond to the switching address lines and csel. NOTHING.
Maybe I don't know something, maybe I forgot something? Code is attached. It is not large.
Please help me.