A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
SX48 MIDI player
9. April 2008 - 10:37 — admin
A "bigger brother" of the smaller- an interesting SX48 micro-controller midi music maker...
Projectuses an SX48 microcontroller at 75 MHz as an 8-channel frequency-synthesis music player with three instruments (selectable per channel): square wave, triangle wave, sinwave. Each channel can play a different pitch. The desired pitch is used to lookup how far to step along the sample waveform each 1/44100 second tick, thereby playing back the waveform at that pitch's frequency.