Crowdfunding: affordable FPGAs for beginners
By Ben Everard. Posted
This article was originally published as part of HackSpace magazine, which has since been incorporated into Raspberry Pi Official Magazine.
Field-programmable gate arrays, or FPGAs, are the popular technology of the moment. They combine the advantages of programmable hardware and custom-designed circuits by letting you alter the connections between logic units to implement an almost limitless range of functions.
While they’re not a new technology, they’ve historically been expensive and hard to program. However, things are starting to change, and the Alchitry project is aiming to make FPGA development much easier for beginners. It comes from the people behind the Mojo IDE, which is far simpler to use than the professional development environments using VHDL or Verilog. It’s hardly beginner-friendly in the sense that we wouldn’t recommend it to someone with no technical experience, but if you can program, you should be able to get to grips with this.
Program a robot arm, with Raspberry Pi and Python code
There are two levels of boards available; the gold, which costs $95 and features an Artix 7 FPGA with 256MB DDR 3 RAM, and the copper, which is $50, and has the less powerful iCE40 FPGA. Besides the power, the copper stands out as it can be programmed with the open-source Project IceStorm tools, while the gold requires the proprietary Xilinx toolchain. As well as these FPGAs, you can also get add-on boards with protoboard or input and outputs.
It looks like a great project, but we haven’t yet got our hands on it to be able to test it properly.
From $50 + hsmag.cc/Unhznb Delivery: October 2018
Ben is the Editor of HackSpace magazine. When not wrangling words, he enjoys cycling, gardening, and attempting to identify wild mushrooms.
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