Abstract:

This report introduces the design and realization of digital signal processing board of Deviation Surveying Instrument based on TMS320F28335.The functional properties and some periphery connection of TMS320F28335 DSC made by TI Company are outlined,the specific function application and basic hardware structure of the signal processing board are described,and the whole system software structure and specific implementation of specific software modules are analyzed.The whole system realizes the sampling of the analog signal,DSC digital signal processing,EEPROM's reading and writing and communication with upper computer.Using the interrupt technology of TMS320F28335,every functional module can normally run in its own interrupt thread without mutual interference,thus avoiding the system chaos.

Key words: DSC;TMS320F28335;AD7656