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ATmega-meets-FPU

Proof of concept connecting ATmega644 with the good old 80287 math coprocessor.

Various pin assignments of the Intel's 80287

Pin assignment

ATmega644 ports connected to 80287

Port connection

Top of the board

Top of the board

Bottom of the board

Bottom of the board

The good old 80287 math coprocessor

80287 math coprocessor