McBSP技术在数据传输中的应用  

Application of multi-channel buffered serial port in data transmission

作　　者：高峰[1] 王学通[2] 

机构地区：[1]西安工业大学北方信息工程学院,陕西西安710025 [2]西安理工大学计算机科学与工程学院,陕西西安710048

出　　处：《电子设计工程》2011年第8期133-136,共4页Electronic Design Engineering

摘　　要：在嵌入式数据传输系统中经常会遇到DSP芯片与模/数转换器接口的问题,为提高信号的采样、传输速度与精度,增强系统可靠性,给出了基于DSP芯片的多通道缓冲串口(McBSP)在数据传输中作为接收器的原理、硬件与软件设计方法。选用TI公司的C5000系列定点DSP TMS320VC5502芯片与TI公司的10位高速串行逐次逼进型转换器模/数转换芯片TLV1572进行无缝连接,通过TLV1572对模拟数据进行采样,后经A/D转换为数字信号,DSP的McBSP串口进行接收,实现了不经任何转换的实时数据传输。该系统设计方案电路简单,可靠性好,易于实现,具有一定的通用性。It always meet the question of DSP chips and analog/digital converter interface in the embedded data transmission system in order to improve the speed and the precision of signal＇s acquisition and sampling and enhance the system＇s reliability, the principle and the method of designing hardware and software are introduced in the multi-channel buffered serial port （McBSP） receiver based on DSP.The fixed-point DSP TMS320VC5502 and the high-speed lO-bit successive-approximation ananlog-to-digital converter （ADC） TLVI572 produced by TI company are interfaced glulessly,analog signal sampled by TLV1572 is converted to digital signal through the A/D and is received by McBSP, the real-time data can be transferred directly without convertion. The system with general purpose is designed with high reliability and can be implemented easily.

关 键 词：多通道缓冲串口 TMS320VC5502 模/数转换器 数据传输 

分 类 号：TN911.7[电子电信—通信与信息系统]