In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
标签： priority preemptive inversion problem
上传时间： 2015-12-14
上传用户：气温达上千万的
The kernel-ica package is a Matlab program that implements the Kernel ICA algorithm for independent component analysis (ICA). The Kernel ICA algorithm is based on the minimization of a contrast function based on kernel ideas. A contrast function measures the statistical dependence between components, thus when applied to estimated components and minimized over possible demixing matrices, components that are as independent as possible are found.
标签： independent kernel-ica implements algorithm
上传时间： 2014-01-17
上传用户：yiwen213
资料->【E】光盘论文->【E1】斯坦福博士论文->02 calgary PhD A Java-Based Wireless Framework for Location-Based Services Applications.pdf
标签： Location-Based Applications Java-Based Framework
上传时间： 2013-07-02
上传用户：亚亚娟娟123
FPGA-based high-order FIR filter design
标签： FPGA-based high-order filter design
上传时间： 2013-08-06
上传用户：sssnaxie
Digital Down Converter Design based on FPGA.
标签： Converter Digital Design based
上传时间： 2013-08-13
上传用户：CSUSheep
fpga based jpge 压缩算法，性能不错，
上传时间： 2013-08-14
上传用户：a471778
FPGA-based link layer chip S19202 configuration
标签： configuration FPGA-based S19202 layer
上传时间： 2013-08-18
上传用户：xsnjzljj
Run Pac-man Game Based on 8086/8088 FPGA IP Core
上传时间： 2013-08-23
上传用户：JamesB
一篇关于CORDIC的文章A survey of CORDIC algorithms for FPGA based computers
标签： CORDIC algorithms computers survey
上传时间： 2013-08-31
上传用户：lliuhhui
something useful for communication,source code based on FPGA
标签： communication something useful source
上传时间： 2013-08-31
上传用户：maizezhen
