This repo contains the support materials for this blog post that goes over building the gateware necessary to display animated GIFs on a compatible RGB LED panel.
The placement files in this repo assume that the project is running off of this HX4K breakout board.
To build the gateware, you will need the yosys + nextpnr toolchain.
Building the bitstream is the default target of the top-level Makefile.
In order to flash the bitstream to the board, if using the HX4K breakout you will need the faff tool,
In the tb/ directory are two simulators that will exercise the panel driving
logic, as well as the flash reader. Both of these depend on
Verilator.
To pack animations into a format that the FPGA can use, the img_pack tool in
img_packer can be used to convert multiple 64x64 images into a binary file
that can then be loaded into flash for display.