The Note-to-Period converter of the previous project (gk12-08) was only for a four-bit period. To get accurate musical notes, we need a twelve-bit period.
- Create a schematic similar to gk12-08 so that it has
twelve 16-bit multiplexers. The high-order four bits of each
multiplexer won't be used. (Hopefully, Lever will detect this and
delete the circuitry for these bits.)
- Use the Windows Scientific Calculator to fill in the Binary Period Length column in the table above.
- Connect each multiplexer A input to either VCC or GND, according to the Binary Period Length column.
- Right click here to get the test vectors.
- Verify that the binary number produced for each Note Code is correct.
- I'm not furnishing waveforms for this project,
because I haven't connected all the A inputs on my schematic--I'm going
to get one of your schematics after you've done so.
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