摘要
在复用片上网络（No C）架构作为测试访问机制对No C内嵌核进行测试时,如果有多个I/O接口并行测试就容易发生资源的冲突.为了解决多区域并行测试的资源冲突问题,提出一种无链路冲突的测试调度方法.首先使用分区算法将网络划分多个区域,然后使用链路分配算法对节点建立路径树来查找可连通路径,最后全局考虑各个区域的连通路径来分配链路使所有区域都连通,从而避免资源冲突、减少测试时间、保证测试可靠性.实验结果表明,相对于基准对象,该方法可减少测试时间14.13%～52.62%,比已有算法的测试时间最多减少了16.42%,是一种较优的无冲突测试调度方法.
In using on-chip network infrastructure as test access mechanism to test the embedded cores of NoC, it＇s easy to lead to the confliction of resources if there are multiple I/O ports. This paper proposes a contention-free method to solve the resource confliction problem in parallel testing for NoC. After dividing the network into multiple partitions, a path tree is builded for every border node to find a connected path and then allocate links of the path to each partition. The ultimate goal of this paper is to make all partitions connected, thus removing the resource confliction, reducing the testing time and guaranteeing the reliability for the whole chip. Experimental results show that, the testing time can be reduced by 14.13%～52.62% when compared with general cases, and can be reduced by 16.42% at most while compared with the existing algorithm. Therefore, the proposed method is a relatively optimal contention-free test scheduling method.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2015年第3期533-541,共9页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金(61474036
61274036
61371025)
安徽省自然科学基金(1508085MF117)
中央高校基本科研业务费专项资金(J2014HGBZ0175)
关键词
片上网络
并行测试
链路冲突
链路分配
network-on-chip
parallel testing
link contention
link allocation
