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The FPGA Chronicles: Exploring the Tang Nano 20K

The FPGA Chronicles: Exploring the Tang Nano 20K

FPGAs used to be mysterious, expensive devices, but these days you can buy surprisingly capable boards for very little money. Some years ago, I did an FPGA Bootcamp over on …. The FPGA Chronicles: Exploring the Tang Nano 20K.

Much of that material still applies, but the hardware is dated. So I decided it was time to update it, using the inexpensive Tang Nano 20K and its GOWIN GW2AR-18 FPGA as the main platform, with perhaps a few excursions into other FPGAs. History and Motivation Once upon a time, if you wanted to have a custom IC, you went with a wheelbarrow full of money to a semiconductor company.

Some smart person at a semiconductor fab eventually realized they could make a chip with a lot of uncommitted blocks on it and then, for a custom chip, only design the wiring that connected them together. This still required a wheelbarrow full of money, but it was a smaller wheelbarrow. Then one day, someone realized they could do the same thing but make the electrical connections between the blocks configurable.


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