Tang Nano 9K

[apuder]

Disclaimer: I'm a noob when it comes to FPGAs. I've been trying to use your project on a Tang Nano 9K. Using their GOWIN FPGA Designer (1.9.8.05), I get an error in serializer.sv:
Net 'tmds[2]' is constantly driven from multiple places("src\serializer.sv":230)
Found another driver here("src\serializer.sv":232)`

The project is configured to use System Verilog 2017.

TIA.

[sameer]

Hi Arno, there are two issues there:

1. There currently is no implementation of a serializer for that platform. I wrote implementations for Xilinx and Intel but Lattice, Gowin, and a few others are still missing. If there is an LVDS or TMDS transmitter component in the GOWIN FPGA Designer, that's what needs to be added here.
2. The second is that that error message is not expected 😅 I will look into why it's happening and get back to you

The multiple driver

[apuder]

FYI: M. Boytim got your library to work on a Tang Nano 9K:
https://github.com/apuder/TRS-IO/blob/nano-9k/src/fpga/nano/v1.3-xray/TRS-IO/src/hdmi/serializer.sv

[sameer]

@apuder do you know what was changed? It would be great to contribute those fixes back here