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.
標簽： priority preemptive inversion problem
上傳時間： 2015-12-14
上傳用戶：氣溫達上千萬的
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.
標簽： independent kernel-ica implements algorithm
上傳時間： 2014-01-17
上傳用戶：yiwen213
資料->【E】光盤論文->【E1】斯坦福博士論文->02 calgary PhD A Java-Based Wireless Framework for Location-Based Services Applications.pdf
標簽： Location-Based Applications Java-Based Framework
上傳時間： 2013-07-02
上傳用戶：亞亞娟娟123
FPGA-based high-order FIR filter design
標簽： FPGA-based high-order filter design
上傳時間： 2013-08-06
上傳用戶：sssnaxie
Digital Down Converter Design based on FPGA.
標簽： Converter Digital Design based
上傳時間： 2013-08-13
上傳用戶：CSUSheep
fpga based jpge 壓縮算法，性能不錯，
上傳時間： 2013-08-14
上傳用戶：a471778
FPGA-based link layer chip S19202 configuration
標簽： configuration FPGA-based S19202 layer
上傳時間： 2013-08-18
上傳用戶：xsnjzljj
Run Pac-man Game Based on 8086/8088 FPGA IP Core
上傳時間： 2013-08-23
上傳用戶：JamesB
一篇關于CORDIC的文章A survey of CORDIC algorithms for FPGA based computers
標簽： CORDIC algorithms computers survey
上傳時間： 2013-08-31
上傳用戶：lliuhhui
something useful for communication,source code based on FPGA
標簽： communication something useful source
上傳時間： 2013-08-31
上傳用戶：maizezhen
