Development of Video Port Driver Based on DSP/BIOS Device Driver Model
Liu Zhe · Modern Electronics Technique · 2008
This paper takes TMS320DM642 DSP for example and introduces a method of programming the device driver,which based on DSP/BIOS Class/Mini driver model.The Class/Mini driver model is divided into two layers.One is device-independent layer and the other is device-specific layer.This architecture makes it easier to program the device driver.The application uses class driver API to call the mini driver function indirectly in order to control the peripheral device.Compared with the traditional software development,the driver development based on the two-layer device driver model improves efficiency and increases compatibility and portability.