Wednesday, October 21, 2026

Claude Code for FPGA

Claude code is getting better and better with FPGA design! I designed three simple demos for RGB LED and user button for DIPSY-40NX (TEL0025). All worked out well on first attempt.

Claude prompt: "Please develop VHDL code for simple reaction measurement game that can be played with RGB LED and single push button. The game starts with GREEN pulse, then there is random delay from 1 to 10 seconds and then RED pulse, and the time of button press is measured from the RED pulse. The grading is done by counting delay: if delay is below 100ms then there is one BLUE pulse, after 100ms every 20 ms adds one pulse. If button is not pressed then the game start GREEN pulse comes with the interval of 15 seconds"

And it worked!

There is report that an user created x86. SPARC and ARM CPU soft cores with Claude. This is pretty much serious milestone for the FPGA development with AI.