Fault tolerance optimizations
Implement Fault tolerance in CTU CAN FDs design:
- Implement ECC protection on TXT and RX Buffers.
- Implement Backup TXT Buffer mode.
Verification of ECC mechanism would require GHDL to have external names working to force value in the middle of design and verify that Error is truly detected !
This option could be present as synthesis option ("sup_fault_tolerance").
It is questionable how to implement ECC protection, adding a single bit per memory word could be held in array of flops.