DSP与PC机的高速串行通信设计

Design of High-speed Series Communication for DSP and PC

数字信号处理芯片(DSP)广泛应用于高速数据采集与传输、数字通信、图像处理、语音处理等高速数字信号处理领域。针对实际系统要求,并根据当前数字信号处理理论,以DSP为处理器,设计和实现了测试系统硬件平台。围绕DSP设计了测试系统的前向通道,中断、复位子系统、存储子系统和通信子系统。本文利用扩展异步通信芯片,将DSP与PC机相连,完成测试系统与PC机之间的高速和可靠的通信。系统经过实际运行证明是可靠的,满足了系统设计的要求。

High speed digital signal processor （DSP） is the fast developing technology in recent years. It has been widely applied in many fields. It can implement all kinds of digital processing algorithms more efficiently, such as image compress, digital communication etc. On the grounds of the perfect capability and availability of DSP in the digital signal processing, the choice of DSP as the core component in the testing system is wise and advisable. This paper discussed high high-speed communication between the DSP and PC. On the grounds of using system central processing unit （ CPU）, we discussed the design of the front access, such as the function of interruption, resetting, saving, communication and debugging. System operation is reliable in practical application, and satisfied demand of system design.