Fault tolerant CAN bus control system implemented into FPGA

For various types of applications, it is necessary to guarantee maximal level of fault tolerance and high reliability of components, avionic and railway applications can serve as an example of these applications. In these devices, electronic components are exhibited to the environment conditions, from among them especially cosmic radiation can have an undesired and destructive effect. In this paper, the basic ideas of the design and implementation of CAN bus based control system into FPGA platform is described. The bus control system uses CANAerospace application protocol. The fault tolerance features of the developed system are improved by TMR architecture. Then, experiments with SEU injection into the FPGA configuration memory with both non-TMR and TMR architectures are described, the results presented and evaluated. In these experiments, SEU injection framework developed during our previous research was used which injects SEU failures into running FPGA design.