TIDM-LPBP-TCHMP3PLAYER

MP3 Encoder/Decoder with capacitive touch interface, OLED display & SD card mass storage

TIDM-LPBP-TCHMP3PLAYER

Design files

Overview

The audio capacitive touch reference design is a plug-in board for the MSP430 LaunchPad development kit (MSP-EXP430G2). This reference design features several capacitive touch elements including a scroll wheel, button and proximity sensor and nine LEDs that provide instant feedback as users interact with the capacitive touch elements.

The TMS320C5535 DSP and TLV320AIC3204 CODEC also provide MP3 encoding and decoding capabilities. On-board USB, microSD card, OLED display and headset interface round out the design. This features two embedded processors that cooperate and communicate via a UART API/interface between C5535 DSP and MSP430 microcontroller.

Features

MSP430 microcontroller responsible for:

  • Capacitive touch sensing and LED feedback
  • Gesture / event detection
  • Host application that controls BoosterPack
  • UART communication to C5535 DSP

C5535 DSP responsible for:

  • MP3 encode and decode
  • SD-card file system
  • USB mass-storage class
  • OLED and codec
Personal electronics
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDR743.PDF (146 K)

Detailed schematic diagram for design layout and components

TIDR745.PDF (39 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDR744.ZIP (622 K)

Files used for 3D models or 2D drawings of IC components

Products

Includes TI products in the design and potential alternatives.

Digital signal processors (DSPs)

TMS320C5532Low power C55x fixed point DSP- up to 100MHz

Data sheet: PDF | HTML
Digital signal processors (DSPs)

TMS320C5533Low power C55x fixed point DSP- up to 100MHz, USB

Data sheet: PDF | HTML
Digital signal processors (DSPs)

TMS320C5534Low power C55x fixed point DSP- up to 100MHz, USB, LCD interface

Data sheet: PDF | HTML
Digital signal processors (DSPs)

TMS320C5535Low power C55x fixed point DSP- up to 100MHz, USB, LCD interface, FFT HWA, SAR ADC

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430G255316 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF

Technical documentation

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Type Title Date
Application note Audio Capacitive Touch BoosterPack C5535 Software Sep. 03, 2014
Application note Audio Capacitive Touch BoosterPack MSP430 Software Sep. 03, 2014
Application note Audio Capacitive Touch BoosterPack Hardware Sep. 03, 2014

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