基于TMS320F240的摄影点阵系统设计

Design of Photography LED-Lattice System Based on TMS320F240

TI公司生产的TMS320系列的DSP有很好的实时信号处理能力,该系列将实时处理能力和控制器外设功能集成于一体, 主要阐述了一种基于TMS320F240的小型摄影点阵控制系统的设计方案,简要给出了利用通用异步收发器TL16C552实现与其他终端设备通信的设计方法;采用C语言与汇编语言混合编程的方式进行软件设计,不仅使得程序有较强的可移植性,而且不失系统的实时处理能力;该系统长时间运行稳定,很好地实现了故障检测、动态扫描显示等功能。

TMS320 series DSP which TI Company produces has fine ability in processing real--time signals. The series integrates realtime processing function and controller peripheral function in an organic whole. This paper has mainly explained a kind of design scheme for a small- scale photography LED Lattice control system based on TMS320F240, and briefly given a design method of making use of UART （Universal Asynchronous Receiver Transmitter） TLI6CSS2 to implement the communication with other terminal devices. Both C language and assembly language are adopted to carry out software design, which makes program much transplantable and doesn＇t affect systematic re al-time processing ability. The system runs steadily and accomplishes error detected function, dynamic scanning display function and etc.