Areva Teleperm

The EPR I C consisted entirely of computer-based systems, Areva Teleperm XS (for the high-integrity protection functions) and Siemens SPPA-T2000 (for lower integrity control functions). Furthermore, both these systems were originally developed by Sianens, so any claim for design diversity seemed weak. 

Areva Teleperm XS has strictly cychc operation, with no process-controlled interrupts. There is no dynamic memory allocation, so each variable in the application software has a permanent dedicated location in the memory. It uses a standardized, simple software structure, and automatic code generation from... 

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