Research And Design Of Data Storage And Transmission System Based On DSP

With the fast development of computer and information technology, the Digital Signal Processor has become a key technical in high-speed and real-time processing. DSPs are getting more and more attentions in the information field, due to its powerful signal processing ability.A lot of real-time data acquisition and processing systems choose Digital Signal Processor (DSP) as its core processor, that ask for dealing with the collecting image data fast.This article discusses a kind of high-speed data collection and storage system, which is based on Digital Signal Processor, gives hardware and Software to come true. According to the system's configuration and function need, we choose TI's DSP chips TMS320F2812 as a core processor, for this chip has abundant of peripheral, we can have a simple circuit architecture, a low cost and short development time by using it. And achieve control of A/D sampling and display processing function. For the large amount of data that requires to be processed, the inter memory resources of TMS320F2812 can't meet the demand. As for this point, Implements A/D data acquisition SD card storage and serial transmission function. The design of the whole system was discussed in the following aspects:(1)The article analysis and demonstrates the system feasibility, the working principles and the selection of the chip.(2) Paper combined with the overall program design, hardware design, software design aspects of a detailed analysis. In this paper hardware and software design is the focus of this design.(3) Described in detail as a data storage medium of SD card reader process. And SD card for analysis of selected bus mode and selected SPI bus mode.(4) Combined with signal flow chart of storage and transmission system, given the system's software design and implementation process, including the specific design of each module.(5) After the actual running on the PC, the serial transmission of data and the data stored in SD card comparison, analysis of experimental results and give an improved scheme and feasibility analysis.On the whole, the basic design of the system to complete the required goals, the system can quickly collect the data front the effective transmission and storage. The design is simple and feasible, the system is small, fast and simple interface, easy to use features and achieve the cost control, can be a good solution system size and cost in the practical application problems caused. This system has broad implication future to store larger data for a signal.