On-line software-based self-test of the Address Calculation Unit in RISC processors
On-line software-based self-test of the Address Calculation Unit in RISC processors
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RISC 处理器中地址计算单元基于软件的在线自测试
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
O. Ballan
中科院分区：
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作者：
P. Bernardi;Lyl M. Ciganda Brasca;M. D. Carvalho;M. Grosso;Jorge Luis Lagos;E. Sánchez;M. Reorda;O. Ballan
基于软件的自测试 (SBST) 可在基于微处理器的系统的任务阶段使用，以定期评估硬件完整性。然而，由于测试程序与任务应用程序共存，这种方法受到了一些限制。本文提出了一种生成 SBST 程序的方法，用于在线测试嵌入式 RISC 处理器的地址计算单元，这是受在线限制影响最严重的处理器之一。所提出的策略在类 MIPS 处理器和工业 32 位流水线处理器上实现了高固定故障覆盖率；这两个案例研究显示了该技术的有效性和省力。
Software-based Self-Test (SBST) can be used during the mission phase of microprocessor-based systems to periodically assess the hardware integrity. However, several constraints are imposed to this approach, due to the coexistence of test programs with the mission application. This paper proposes a method for the generation of SBST programs to test on-line the Address Calculation Unit of embedded RISC processors, which is one of the most heavily impacted by the online constraints. The proposed strategy achieves high stuck-at fault coverage on both a MIPS-like processor and an industrial 32-bit pipelined processor; these two case studies show the effectiveness of the technique and the low effort.