[信息与通信]BF_SSLDD_Overview_Slides在Blackfin应用程序中使用系统服务库、器件驱动器及VisualDSP++内核 2008年11月.pdfVIP

The World Leader in High Performance Signal Processing Solutions Using System Services Library and Device Drivers with VisualDSP++ Kernel in Blackfin Applications George Kadziolka President, Kaztek Systems Module Overview Why Use System Services Library and VisualDSP++ Kernel? The System Services Library (SSL) abstracts the low level hardware from the application, making it ® easier to develop for the Blackfin processor. Application When an application requires a more involved infrastructure to deal with user I/O, device I/O, Device Device Device Driver Driver Driver processing, and control, a Real Time Kernel (RTK) is often considered. System Services • Enables an application to be broken up into separate tasks, each of which can be dealt with more easily • Individual tasks then interact through synchronization mechanisms such as semaphores and messages RTOS VisualDSP++® Kernel (VDK) is a preemptive multitasking kernel developed and supported Processor and Hardware Subsystems by Analog Devices (ADI) for the Blackfin and SHARC® processor families. System Services Library Device Drivers vs. VisualDSP++ Kernel The SSL Device Drivers (DD) work with VDK, and they supersede the VDK DD model for the Blackfin processor family • SSL DD for both on- and off-chip peripherals are actively developed and supported for Blackfin VDK offers a device driver programming model • Examples are provided for usage but are not otherwise su