Write a bunch of VHDL and see what percentage of the resources are used. Some wild estimate of the fabric requirement. The Lattice 'stick' is seriously lacking in IO. How much memory does the largest game cartridge have? Does the board have that much? How many IO pins will the project take (and double it.) before considering a board. You would probably load a game dataset from SD card to BlockRAM or SRAM. How much logic, how much BlockRAM to emulate cartridge memory. You need to block out your actual requirements. What you need is something to get started. It will come to pass that regardless of which board you buy, it own't be the last. ![]() ![]() I don't have anything bad to say other than Lattice's iCECube2 software is ancient and the Alchitry Labs is kinda not as capable or customizable but you can always DIY with open source tools.Why not a 'stick'. Sparkfun only offer the IO shield and and buttom + LED board, i really like them but I really want another shield for the HDMI port or displayport. Its not the cheapest board out there but I think its priced really well for beginners. The board is priced really well for the capability, you can find boards with similar capability on crowdsupply that is more or about the same price as this. I find using yosys + nextpnr + iceprog is perfect for learning the basics. You can also use tools from project icestorm, and use open source tools to start your learning. The CU requires you to install iCECube2, it might be a pain to install at first but once you get it working it works pretty well with Alchitry labs. I got the AU and CU board and I use them both to learn more about FPGAs and I just have to say the CU version is the best to get started learning how to program FPGAs. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. The SparkFun Qwiic Connect System is an ecosystem of I 2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. The Cu possesses 79 IO pins with eight general purpose LEDs a 100MHz on-board clock that can be manipulated internally by the FPGA a USB-C connector to configure and power the board and a USB to serial interface for data transfer.īy adding stackable expansion boards similar to shields or HATs called "Elements," the Alchitry Cu is able to expand its own hardware capabilities by adding prototyping spaces, buttons, LEDs, and more! ![]() The Alchitry Cu uses the Lattice iCE40 HX FPGA with 7680 logic cells and is supported by the open source tool chain Project IceStorm. Finally, now that this board is built by SparkFun, we added a Qwiic connector for easy I 2C integration! This board is a fantastic starting point into the world of FPGAs and the heart of your next project. The Cu truly exemplifies the trend of more affordable and increasingly powerful FPGA boards arriving each year. FPGAs, or Field-Programmable Gate Arrays, are an advanced development board type for engineers and hobbyists alike to experience the next step in programming with electronics. If you are not needing a lot of power to start your FPGA adventure, or are looking for a more economical option, the Alchitry Cu FPGA Development Board might be the perfect option for you! The Alchitry Cu is a "lighter" FPGA version than the Alchitry Au but still offers something completely unique.
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