A Complete Open Source Design Flow for Gowin FPGAs
Pepijn de Vos, Michael Kirchhoff, Daniel Ziener · 2020
In this paper, we propose an open source design flow for the low cost FPGAs from the company Gowin. Open source design tools are opening the door for custom extensions and modification in the design flow. The proposed design flow which supports almost all Gowin FPGA resources, is based on well-known open source tools, like Yosys and nextpnr, as well as on our proposed open source bitstream generator. The necessary architectural details of the FPGA family are gathered by input fuzzing and comparisons with the vendor tool flow. Experimental results show an almost similar performance as the vendor tools.