Electronic system with component redundancy, and control chain for a motor implementing such system

An electronic system with component redundancy, comprising:

• a first processing unit, able to implement algorithms, connected to a first board for acquiring input signals that are capable of being delivered by at least one sensor, and/or for generating output signals that are capable of controlling at least one actuator,
• a second processing unit able to implement the same algorithms as those implemented by the first unit, and which is connected to a second board for acquiring the same input signals that are capable of being delivered by the sensor as those received by the first board and/or for generating the same output signals that are capable of controlling the actuator as those generated by the first board,
• each processing unit and each board including a first communication port, the first communication ports of the first unit and of the first board, and, respectively, of the second unit and of the second board, being interconnected by a wired communication link,
• wherein in that each processing unit and each board include a second communication port, in that the second port of the first board is connected to the second port of the second unit by a wired communication link, in that the second port of the second board is connected to the second port of the first unit by a wired communication link, wherein each communication port can be activated by a software activation command, and wherein each communication port can be deactivated by a software deactivation command.