Summary of WEBFPGA: RAPID FPGA DEVELOPMENT SYSTEM ON THE CLOUD
WebFPGA revolutionizes FPGA development by offering a cloud-based environment that eliminates high hardware costs and local software requirements. Compatible with affordable boards like MojoBoard and IceBreaker, it uses WebUSB to program FPGAs directly via a modern browser. Users simply upload Verilog code, and the backend handles synthesis in about a minute, returning a ready-to-flash bitstream without any local CPU usage.
Parts used in the WebFPGA Project:
- MojoBoard (Mojo v3)
- IceBreaker
- TinyFPGA
- Modern web browsers (Chrome, Opera, Edge 75)
- Verilog source files
- Cloud-based backend toolchain
WebUSB programmable FPGA development boards. Cloud-based synthesis.
Until recently, FPGA development has suffered from a high barrier to entry for newcomers. In the past, development boards using Xilinx, Lattice, and Altera chipsets easily fetched $250-$2000 price tags. The hardware barrier has been all but eliminated by recent entrants, which include MojoBoard (https://alchitry.com/products/mojo-v3), the IceBreaker (https://www.crowdsupply.com/1bitsquared/icebreaker-fpga), and TinyFPGA (https://tinyfpga.com/) who offer sub-$100 kits.
WebFPGA is a cloud-based development environment for FPGAs with compatible development boards. Our software toolchain uses a recent browser technology called WebUSB to program the FPGA, without any software required other than a modern web browser (Chrome/Opera/Edge75 supported for now). We also provide a browser-less, command-line solution.
“We aim to completely revamp the digital logic development experience. Our cloud-based toolchain performs synthesis on our backend, forwarding the logs and final bitstream to the client for flashing. Local CPU expenditure is zero. WebFPGA is a remote wrapper around these powerful and complex toolchains. Simply feed it your hardware description in Verilog source files and about a minute later it will return a synthesized bitstream, ready for flashing! (VHDL will be supported in the future).”
From the second you receive our board, you will be able to plug it in, synthesize Verilog, and flash it. NO SOFTWARE REQUIRED!
What’s An FPGA?
FPGA is an acronym for “Field Programmable Gate Array”. In essence, the “field programmable” isn’t too relevant other than implying that the whole “gate array” is programmable. The “gate array” is the cool part. Think of the whole chip as an array of logical gates (e.g. AND/OR/etc). These logic gates can be wired up however you may desire. For example, you might decide to write some logic that tints an entire image red. On a CPU, each pixel would need to be tinted one by one. But in digital logic, each pixel can be tinted simultaneously. Microcontollers, CPUs, GPUs, etc. consist of logical gates solidified into an integrated circuit at a silicon foundry. However, with FPGAs, these gates can be reprogrammed on the fly. FPGAs are used to develop specialized, dynamic digital logic systems.
Read more: WEBFPGA: RAPID FPGA DEVELOPMENT SYSTEM ON THE CLOUD
- How does WebFPGA eliminate the need for local software?
WebFPGA uses a cloud-based toolchain where synthesis occurs on the backend, requiring only a modern web browser to flash the bitstream. - What technology allows programming without installing drivers?
The system utilizes WebUSB, a recent browser technology that enables direct FPGA programming from the browser. - Which FPGA development boards are compatible with this project?
Compatible boards include MojoBoard, IceBreaker, and TinyFPGA. - Can users use VHDL for their projects?
No, the article states that VHDL will be supported in the future, but currently only Verilog is accepted. - Does using WebFPGA require significant local CPU power?
No, local CPU expenditure is zero because all synthesis happens on the remote backend. - What is the typical time required to receive a synthesized bitstream?
It takes about a minute to synthesize the Verilog source file and return the final bitstream. - Is there an alternative to the browser-based interface?
Yes, the project also provides a browser-less command-line solution. - Why were traditional FPGA boards considered expensive?
Past boards using Xilinx, Lattice, and Altera chipsets typically cost between $250 and $2000.
