Sensitivity Analysis for Processor Based on VHDL Fault Injection

A fault injection tool based on VHDL that implemented by simulator commands technique is proposed for supporting the sensitivity analysis of space processor.To demonstrate the tool, we use LEON3 processor as the target prototype to obtain the sensitivity of pipeline registers.Moreover, we harden the pipeline registers which are most sensitive and evaluate the reliability again.The fault injection tool presented by this paper can be also used to analyze sensitivity for other processor models by VHDL.