Abstract
In this thesis, the embedded CPLD(Complex Programmable Logic Device) and DSP(Digital Signal Processor) system are applied to focusing/tracking servo of optical disk drive. Among them, CPLD is in charge of picking servo signals and logic determination, while DSP is responsible for the design of controller. Combining both devices brings their merits into full play.Under the structure of developing environment on embedded systems, ADC and DAC collect servo error signals and send control effort to propel driving IC, and different modules are fulfilled by VHDL and ASYBLE language. Final, a DSP-based servo controller for a DVD-player is implemented and verified through experiments.