脑电信号是一种很重要的生物医学信号,它是临床医学诊断和脑科学研究的一种重要手段。本文介绍了基于Cypress PSoC^TM可编程片上系统的脑电信号采集系统的整个设计过程,包括硬件组成和软件设计方法。通过PSoC芯片特有的可编程模拟系统和数字系统,可以把大量的外围器件集成到芯片的内部,从而提高了硬件系统的集成度和可靠性;加上功能强大的PSoC Designer集成开发环境,提高了开发效率,而且系统的软硬件升级也更加容易了。
EEG (electroencephalogram) signal is one of important biomedical signals, which is the main method of clinical medical diagnosis and brain science research. In this article, we discuss the design of EEG signal acquisition system based Cypress PSoCTM, which includes the hardware configuration and software design method. Inside the progrmmnable analog and digital system of PSoC(Programmable System on Chip), we can configure many peripheral circuits, and this can improve the integration and reliability of hardware system. In addition, PSoC Designer, the integrated development environment (IDE) of Cypress PSoC chips, makes the process of development become more efficient. Meanwhile, the upgrade of hardware and software is also easy.