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Comprehensive Design Overview for ECE 477 Senior Project: Tone Matrix Music Box

This presentation outlines the key software design considerations for the Tone Matrix Music Box developed in the ECE 477 Senior Design course. Key features include efficient interrupt-driven control for push buttons and a rotary switch, coherent speed, and a constant check on battery status. The design incorporates two SPIs, three LED driver chips, a DAC, SD card for extended memory, and various communication protocols like UART/USART for MIDI output. Additionally, data sampling from a 3-axis accelerometer is addressed, ensuring a robust and responsive music box operation.

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Comprehensive Design Overview for ECE 477 Senior Project: Tone Matrix Music Box

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Presentation Transcript

  1. Tone Matrix music box ECE 477 Senior Design - Group 17 Presenter: Jun Jun Peh

  2. Block Diagram

  3. Software design consideration • Timer: • Interrupts generated are fast enough for pushbuttons and rotary switch • Speed is coherent with button pressed • Frequently check for battery status • Interrupt driven • MIDI to be specified at 31.25 Kbit/s

  4. Software design consideration • 2 SPIs: • 3 LED driver chips • DAC, SD card, LCD • UART & USART: • MIDI output • Fuel gauge • ADC: • Use to sample data from 3-axes accelerometer

  5. Software design consideration • Memory: • SD card allocates extra memory tosave and load • Initialization: • PIC18 uC, SPI,UART, ATD

  6. Software flowchart

  7. Hierarchy (Receiver)

  8. Hierarchy (Transmitter)

  9. Questions?

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