CODEWITHSUNDEEP
fpgahdl
user9682193
user9682193

Reputation: 1

Inverting pin value in physical constraints (Gowin EDA)

I've recently bought a Tang Mega 138k Pro fpga board. it contains some peripherals (switches, led, ...) that are active low. Is there any way to invert the pin in physical constraints file so i don't need to change hdl designs? I tried to read the docs and user guide but i can't find anything about this.

Upvotes: -1

Views: 31

Answers (1)

Vlad
Vlad

Reputation: 5857

There are no constraints you're seeking for, and it's likely it doesn't exist anywhere else. Only clock constraints has waveform inversion constraint, but not general purpose I/O.

If your design was written with other hardware in mind, like the one that requires active high levels, then you should make a top-level module, wrapping up existing stuff and adapting it to changed conditions. Constraints aren't the right tool here.

Upvotes: -1

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