Wireless Integrated Telematics

Demonstrate a Bluetooth-enabled hands-free telephony system integrated with a vehicle radio head unit. Upon pairing with a mobile phone, voice communication is automatically transferred from the phone to the vehicle’s audio system, and information (caller ID, call status) is displayed on the head unit. The system features a voice-control interface (dialing a number, storing a nametag, answering or rejecting a call, etc.).

Responsibilities

• Specified the requirements; designed the systems and software architecture.
• Defined the work packages and schedule, assigned the roles, and coordinated the multi-site development effort.
• Implemented a soft UART over the DSP’s McBSP port to communicate with the Bluetooth transceiver.
• Interfaced the prototype with the radio head unit over the vehicle bus via an UART - Class2 protocol converter.
• Integrated and tested the system.

Functional Environment

Bluetooth hands-free profile, Class2, UART, McBSP, I2C

Technical Environment

C, NEC V850, TI TMS320C5509, NEC Tools (compiler, assembler, linker, simulator, emulator, debugger), NEC incircuit emulator, Spectrum Digital JTAG emulator, TI Code Composer Studio, Borland CodeWright, Microsoft Visio, UML

Innovations

• Introduced Rapid Application Development (RAD) concepts and UML design methodologies to minimize the Software Development Life-Cycle (SDLC); reused hardware and software components from similar projects.