【摘要】 根据以TMS32 0C6 2 0 1为中心的高速DSP图像处理系统的要求 ,设计了由高速模拟视频前端 (AFE)和I2 C总线单片机所构成的模拟视频输入接口电路 ,分析其工作原理 ,探讨了与系统编程有关的几个重要问题。经实际应用表明 ,该接口电路构成简单、功能强、智能化程度高 ,且引入的系统噪声较小 ,从而为后级的视频数字滤波提供了较好的数据源。更多还原

【Abstract】 Based on the requirements of high speed digital video processing system centered about TMS320C6201,an analog video input interface to TMS320C6201 is designed which is composed of a high speed Analog Font End(AFE)of video and an I 2C bus microprocessor. The principle of the above design is analyzed, and several important problems associated with the system programming are discussed. Applications indicated that this circuit is simple, high efficient, intelligent and less noisy , providing a clean data source for the next digital video filtering.更多还原