The Open Electrical & Electronic Engineering Journal

2015, 9 : 285-290
Published online 2015 August 25. DOI: 10.2174/1874129001509010285
Publisher ID: TOEEJ-9-285

Audio Data Acquisition System Design Based on ARM and DSP

Yongxin Wang
Chongqing College of Electronic Engineering, Chongqing, China.

ABSTRACT

With the rapid development in embedded technology and multimedia technology, digital audio technology has been widely applied. Based on an audio data acquisition system, this paper introduces the communication interface design with respect to the HPl interface between ARM and DSP, and A/D, D/A converter design, and describes the operating principle of interfaces and relevant configuration. A method of audio data acquisition is presented controlled by ARM, with signal processing done by DSP. It provides the system chart of data acquisition and software flow chart. This design scheme can take full advantage of McASP interface to achieve high precision AD & DA converter, and HPl interface has been used to realize high speed data transfer between ARM and DSP, thereby achieving efficient and real-time transmission of huge amount of audio data stream.

Keywords:

ARM, Data acquisition, DSP, HPl (host port interface).